Zone Forecast Product
Issued by NWS Houston/Galveston, TX
Issued by NWS Houston/Galveston, TX
402 FPUS54 KHGX 211948 ZFPHGX Zone Forecast Product for Southeast Texas National Weather Service Houston/Galveston TX 248 PM CDT Fri Aug 21 2026 TXZ211-220300- Austin- Including the cities of Sealy and Bellville 248 PM CDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT SATURDAY... .TONIGHT...Mostly clear this evening, then becoming partly cloudy. Patchy fog after midnight. Lows in the mid 70s. South winds 5 to 10 mph. Heat index values up to 106 early this evening. .SATURDAY...Mostly sunny. Patchy fog in the morning. A slight chance of showers with isolated thunderstorms in the afternoon. Hot with highs around 101. Southwest winds 5 to 10 mph. Chance of rain 20 percent. .SATURDAY NIGHT...Partly cloudy. Lows in the mid 70s. South winds 5 to 10 mph. Heat index values up to 106 early in the evening. .SUNDAY...Patchy fog in the morning. Mostly sunny. Hot with highs around 100. South winds 5 to 10 mph. Heat index values up to 106. .SUNDAY NIGHT...Mostly clear. Lows in the upper 70s. South winds 5 to 10 mph. Heat index values up to 105 early in the evening. .MONDAY...Sunny, hot with highs around 100. .MONDAY NIGHT...Mostly clear. Lows in the mid 70s. .TUESDAY...Sunny, hot with highs around 100. Heat index values up to 105. .TUESDAY NIGHT...Clear. Lows in the mid 70s. Heat index values up to 105 early in the evening. .WEDNESDAY...Sunny, hot with highs around 100. Heat index values up to 110. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index values up to 105 early in the evening. .THURSDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 105. .THURSDAY NIGHT...Mostly clear. Lows in the mid 70s. .FRIDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 105. $$ TXZ237-220300- Inland Brazoria- Including the cities of Pearland, Alvin, and Angleton 248 PM CDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT SATURDAY... .TONIGHT...Mostly clear this evening, then becoming partly cloudy. Patchy fog after midnight. Lows in the mid 70s. South winds 5 to 10 mph. Heat index values up to 107 early this evening. .SATURDAY...Mostly sunny. Patchy fog in the morning. A slight chance of showers with isolated thunderstorms in the afternoon. Hot with highs in the upper 90s. Southwest winds 5 to 10 mph. Chance of rain 20 percent. Heat index values up to 107. .SATURDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Humid with lows in the mid 70s. Southwest winds 5 to 10 mph. Heat index values up to 105 early in the evening. .SUNDAY...Patchy fog in the morning. Mostly sunny. Hot with highs in the upper 90s. South winds 5 to 10 mph. Heat index values up to 106. .SUNDAY NIGHT...Mostly clear. Lows in the mid 70s. South winds 5 to 10 mph. .MONDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 105. .MONDAY NIGHT...Mostly clear. Lows in the upper 70s. .TUESDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 110. .TUESDAY NIGHT...Clear. Lows in the upper 70s. Heat index values up to 105 early in the evening. .WEDNESDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 110. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 70s. Heat index values up to 105 early in the evening. .THURSDAY...Sunny, hot with highs in the mid 90s. Heat index values up to 110. .THURSDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index values up to 105 early in the evening. .FRIDAY...Sunny, hot with highs in the mid 90s. Heat index values up to 110. $$ TXZ196-220300- Brazos- Including the cities of College Station and Bryan 248 PM CDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT SATURDAY... .TONIGHT...Partly cloudy this evening, then becoming mostly cloudy. A slight chance of showers with isolated thunderstorms. Lows in the upper 70s. South winds 5 to 10 mph. Chance of rain 20 percent. Heat index values up to 105 early this evening. .SATURDAY...Mostly sunny. A slight chance of showers with isolated thunderstorms in the afternoon. Hot with highs around 103. Southwest winds 5 to 10 mph. Chance of rain 20 percent. .SATURDAY NIGHT...Partly cloudy. Lows in the upper 70s. South winds 5 to 10 mph. Heat index values up to 107 early in the evening. .SUNDAY...Mostly sunny. Hot with highs around 102. South winds 5 to 10 mph. .SUNDAY NIGHT...Mostly clear. Lows in the upper 70s. South winds 5 to 10 mph. Heat index values up to 105 early in the evening. .MONDAY...Sunny, hot with highs around 100. .MONDAY NIGHT...Mostly clear. Lows in the upper 70s. Heat index values up to 105 early in the evening. .TUESDAY...Sunny, hot with highs around 100. Heat index values up to 110. .TUESDAY NIGHT...Clear. Lows in the upper 70s. Heat index values up to 110 early in the evening. .WEDNESDAY...Sunny, hot with highs around 100. Heat index values up to 115 in the afternoon. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 70s. Heat index values up to 110 early in the evening. .THURSDAY...Mostly sunny. Hot with highs around 100. Heat index values up to 110. .THURSDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index values up to 110 early in the evening. .FRIDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 110. $$ TXZ195-220300- Burleson- Including the cities of Caldwell and Somerville 248 PM CDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT SATURDAY... .TONIGHT...Mostly clear this evening, then becoming mostly cloudy. A slight chance of showers with isolated thunderstorms. Lows in the upper 70s. South winds 5 to 10 mph. Chance of rain 20 percent. Heat index values up to 105 early this evening. .SATURDAY...Mostly sunny. A slight chance of showers with isolated thunderstorms in the afternoon. Hot with highs around 104. Southwest winds 5 to 10 mph. Chance of rain 20 percent. .SATURDAY NIGHT...Partly cloudy. Lows in the upper 70s. South winds 5 to 10 mph. Heat index values up to 106 early in the evening. .SUNDAY...Mostly sunny. Hot with highs around 103. South winds 5 to 10 mph. .SUNDAY NIGHT...Mostly clear. Lows in the upper 70s. South winds 5 to 10 mph. Heat index values up to 106 early in the evening. .MONDAY...Sunny, hot with highs around 100. .MONDAY NIGHT...Clear. Lows in the upper 70s. .TUESDAY...Sunny, hot with highs around 100. Heat index values up to 110. .TUESDAY NIGHT...Clear. Lows in the upper 70s. Heat index values up to 110 early in the evening. .WEDNESDAY...Sunny, hot with highs around 100. Heat index values up to 110. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 70s. Heat index values up to 110 early in the evening. .THURSDAY...Mostly sunny. Hot with highs around 100. Heat index values up to 110. .THURSDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index values up to 105 early in the evening. .FRIDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 110. $$ TXZ214-220300- Chambers- Including the cities of Winnie, Mont Belvieu, Anahuac, Stowell, and Old River-Winfree 248 PM CDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT SATURDAY... .TONIGHT...Mostly clear this evening, then becoming partly cloudy. A slight chance of showers with isolated thunderstorms. Lows in the upper 70s. Southwest winds 5 to 10 mph. Chance of rain 20 percent. Heat index values up to 110 early this evening. .SATURDAY...Mostly sunny. A slight chance of showers with isolated thunderstorms in the afternoon. Hot with highs in the upper 90s. Southwest winds 5 to 10 mph. Chance of rain 20 percent. Heat index values up to 112. .SATURDAY NIGHT...Mostly clear. Humid with lows in the upper 70s. Southwest winds 5 to 10 mph. Heat index values up to 110 early in the evening. .SUNDAY...Sunny, hot with highs in the mid 90s. Southwest winds around 5 mph, increasing to south 10 to 15 mph in the afternoon. Heat index values up to 109. .SUNDAY NIGHT...Mostly clear. Humid with lows in the upper 70s. Southwest winds 5 to 10 mph. Heat index values up to 108 early in the evening. .MONDAY...Sunny, hot with highs in the mid 90s. Heat index values up to 105. .MONDAY NIGHT...Mostly clear. Lows in the upper 70s. .TUESDAY...Sunny, hot with highs in the mid 90s. Heat index values up to 110. .TUESDAY NIGHT...Clear. Lows in the upper 70s. Heat index values up to 105 early in the evening. .WEDNESDAY...Sunny, hot with highs in the mid 90s. Heat index values up to 110. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 70s. Heat index values up to 105 early in the evening. .THURSDAY...Sunny, hot with highs in the mid 90s. Heat index values up to 110. .THURSDAY NIGHT...Partly cloudy in the evening, then becoming mostly clear. Lows in the upper 70s. Heat index values up to 105 early in the evening. .FRIDAY...Sunny. Highs in the mid 90s. Heat index values up to 110. $$ TXZ210-220300- Colorado- Including the cities of Columbus, Eagle Lake, and Weimar 248 PM CDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT SATURDAY... .TONIGHT...Mostly clear this evening, then becoming partly cloudy. Patchy fog after midnight. Lows in the mid 70s. South winds 5 to 10 mph. Heat index values up to 106 early this evening. .SATURDAY...Mostly sunny. Patchy fog in the morning. A slight chance of showers with isolated thunderstorms in the afternoon. Hot with highs around 102. Southwest winds 5 to 10 mph. Chance of rain 20 percent. .SATURDAY NIGHT...Partly cloudy. Lows in the mid 70s. South winds 5 to 10 mph. Heat index values up to 105 early in the evening. .SUNDAY...Patchy fog in the morning. Mostly sunny. Hot with highs around 101. South winds 5 to 10 mph. .SUNDAY NIGHT...Mostly clear. Lows in the mid 70s. South winds 5 to 10 mph. Heat index values up to 108 early in the evening. .MONDAY...Sunny, hot with highs around 100. .MONDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index values up to 105 early in the evening. .TUESDAY...Sunny, hot with highs around 100. Heat index values up to 110. .TUESDAY NIGHT...Clear. Lows in the mid 70s. Heat index values up to 105 early in the evening. .WEDNESDAY...Sunny, hot with highs around 100. Heat index values up to 110. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index values up to 105 early in the evening. .THURSDAY...Sunny, hot with highs around 100. Heat index values up to 110. .THURSDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index values up to 105 early in the evening. .FRIDAY...Sunny, hot with highs around 100. Heat index values up to 110. $$ TXZ227-220300- Fort Bend- Including the cities of Missouri City, Mission Bend, Sugar Land, Rosenberg, First Colony, and Pecan Grove 248 PM CDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT SATURDAY... .TONIGHT...Mostly clear this evening, then becoming partly cloudy. Patchy fog after midnight. Lows in the upper 70s. South winds 5 to 10 mph. Heat index values up to 108 early this evening. .SATURDAY...Mostly sunny. Patchy fog in the morning. A slight chance of showers with isolated thunderstorms in the afternoon. Hot with highs around 100. Southwest winds 5 to 10 mph. Chance of rain 20 percent. Heat index values up to 107. .SATURDAY NIGHT...Partly cloudy. Lows in the mid 70s. South winds 5 to 10 mph. Heat index values up to 105 early in the evening. .SUNDAY...Patchy fog in the morning. Mostly sunny. Hot with highs in the upper 90s. South winds 5 to 10 mph. Heat index values up to 107. .SUNDAY NIGHT...Mostly clear. Lows in the upper 70s. South winds 5 to 10 mph. Heat index values up to 106 early in the evening. .MONDAY...Sunny, hot with highs in the upper 90s. .MONDAY NIGHT...Mostly clear. Lows in the upper 70s. Heat index values up to 105 early in the evening. .TUESDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 110. .TUESDAY NIGHT...Clear. Lows in the upper 70s. Heat index values up to 105 early in the evening. .WEDNESDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 110. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 70s. Heat index values up to 105 early in the evening. .THURSDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 110. .THURSDAY NIGHT...Mostly clear. Lows in the upper 70s. Heat index values up to 105 early in the evening. .FRIDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 110. $$ TXZ238-220300- Inland Galveston- Including the cities of League City and Friendswood 248 PM CDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT SATURDAY... .TONIGHT...Mostly clear this evening, then becoming partly cloudy. A slight chance of showers with isolated thunderstorms. Lows in the upper 70s. Southwest winds 5 to 10 mph. Chance of rain 20 percent. Heat index values up to 107 early this evening. .SATURDAY...Mostly sunny. A slight chance of showers with isolated thunderstorms in the afternoon. Hot with highs in the upper 90s. West winds around 5 mph, becoming south in the afternoon. Chance of rain 20 percent. Heat index values up to 109. .SATURDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Humid with lows in the upper 70s. South winds 5 to 10 mph, becoming southwest after midnight. Heat index values up to 106 early in the evening. .SUNDAY...Sunny, hot with highs in the mid 90s. Southwest winds around 5 mph, becoming south in the afternoon. Heat index values up to 107. .SUNDAY NIGHT...Mostly clear. Humid with lows in the upper 70s. South winds 5 to 10 mph. .MONDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 110. .MONDAY NIGHT...Mostly clear. Lows in the upper 70s. .TUESDAY...Sunny, hot with highs in the mid 90s. Heat index values up to 110. .TUESDAY NIGHT...Clear. Lows in the upper 70s. Heat index values up to 105 early in the evening. .WEDNESDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 110. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 70s. Heat index values up to 110 early in the evening. .THURSDAY...Sunny, hot with highs in the mid 90s. Heat index values up to 110. .THURSDAY NIGHT...Mostly clear. Lows in the upper 70s. Heat index values up to 105 early in the evening. .FRIDAY...Sunny. Highs in the mid 90s. Heat index values up to 110. $$ TXZ198-220300- Grimes- Including the city of Navasota 248 PM CDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT SATURDAY... .TONIGHT...Mostly clear this evening, then becoming mostly cloudy. A slight chance of showers with isolated thunderstorms. Lows in the upper 70s. South winds 5 to 10 mph. Chance of rain 20 percent. Heat index values up to 105 early this evening. .SATURDAY...Mostly sunny. A slight chance of showers with isolated thunderstorms in the afternoon. Hot with highs around 102. Southwest winds 5 to 10 mph. Chance of rain 20 percent. .SATURDAY NIGHT...Partly cloudy. Lows in the upper 70s. South winds 5 to 10 mph. Heat index values up to 106 early in the evening. .SUNDAY...Mostly sunny. Hot with highs around 101. South winds 5 to 10 mph. .SUNDAY NIGHT...Mostly clear. Lows in the upper 70s. South winds 5 to 10 mph. Heat index values up to 105 early in the evening. .MONDAY...Sunny, hot with highs around 100. .MONDAY NIGHT...Mostly clear. Lows in the upper 70s. Heat index values up to 105 early in the evening. .TUESDAY...Sunny, hot with highs around 100. Heat index values up to 115. .TUESDAY NIGHT...Clear. Lows in the upper 70s. Heat index values up to 110 early in the evening. .WEDNESDAY...Sunny, hot with highs around 100. Heat index values up to 115 in the afternoon. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 70s. Heat index values up to 110 early in the evening. .THURSDAY...Mostly sunny. Hot with highs in the upper 90s. Heat index values up to 110. .THURSDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index values up to 110 early in the evening. .FRIDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 110. $$ TXZ213-220300- Inland Harris- Including the city of Houston 248 PM CDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT SATURDAY... .TONIGHT...Mostly clear this evening, then becoming partly cloudy. A slight chance of showers with isolated thunderstorms. Lows around 80. South winds 5 to 10 mph. Chance of rain 20 percent. Heat index values up to 109 early this evening. .SATURDAY...Mostly sunny. A slight chance of showers with isolated thunderstorms in the afternoon. Hot with highs around 101. Southwest winds around 5 mph. Chance of rain 20 percent. Heat index values up to 108. .SATURDAY NIGHT...Partly cloudy. Lows in the upper 70s. Southwest winds 5 to 10 mph. Heat index values up to 107 early in the evening. .SUNDAY...Mostly sunny. Hot with highs around 100. South winds 5 to 10 mph. Heat index values up to 108. .SUNDAY NIGHT...Mostly clear. Lows around 80. South winds 5 to 10 mph. Heat index values up to 107 early in the evening. .MONDAY...Sunny, hot with highs around 100. Heat index values up to 110. .MONDAY NIGHT...Mostly clear. Lows in the upper 70s. Heat index values up to 105 early in the evening. .TUESDAY...Sunny, hot with highs around 100. Heat index values up to 110. .TUESDAY NIGHT...Mostly clear. Lows in the upper 70s. Heat index values up to 110 early in the evening. .WEDNESDAY...Sunny, hot with highs around 100. Heat index values up to 110. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 70s. Heat index values up to 110 early in the evening. .THURSDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 110. .THURSDAY NIGHT...Mostly clear. Lows in the upper 70s. Heat index values up to 105 early in the evening. .FRIDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 110. $$ TXZ163-220300- Houston- Including the city of Crockett 248 PM CDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT SATURDAY... .TONIGHT...Showers and thunderstorms likely. Some thunderstorms may produce gusty winds. Lows in the mid 70s. South winds around 5 mph. Chance of rain 60 percent. Heat index values up to 108 early this evening. .SATURDAY...Mostly sunny. A slight chance of showers with isolated thunderstorms in the afternoon. Hot with highs around 103. Southwest winds around 5 mph, becoming south in the afternoon. Chance of rain 20 percent. Heat index values up to 110. .SATURDAY NIGHT...Partly cloudy. Lows in the mid 70s. Southeast winds around 5 mph, becoming southwest around 5 mph after midnight. Heat index values up to 107 early in the evening. .SUNDAY...Mostly sunny. Hot with highs around 102. South winds 5 to 10 mph. .SUNDAY NIGHT...Partly cloudy. Lows in the upper 70s. South winds around 5 mph. Heat index values up to 107 early in the evening. .MONDAY...Mostly sunny. Hot with highs around 100. .MONDAY NIGHT...Mostly clear. Lows in the mid 70s. .TUESDAY...Sunny, hot with highs around 100. Heat index values up to 110 in the afternoon. .TUESDAY NIGHT...Mostly clear. Lows in the upper 70s. Heat index values up to 110 early in the evening. .WEDNESDAY...Sunny, hot with highs around 100. Heat index values up to 110. .WEDNESDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 70s. Heat index values up to 110 early in the evening. .THURSDAY...Mostly sunny. Hot with highs in the upper 90s. Heat index values up to 110. .THURSDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index values up to 105 early in the evening. .FRIDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 110. $$ TXZ235-220300- Inland Jackson- Including the cities of Edna and Ganado 248 PM CDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT SATURDAY... .TONIGHT...Mostly clear. Patchy fog after midnight. Lows in the upper 70s. South winds 10 to 15 mph, diminishing to around 5 mph after midnight. Heat index values up to 107 early this evening. .SATURDAY...Mostly sunny. Patchy fog in the morning. A slight chance of showers with isolated thunderstorms in the afternoon. Hot with highs around 100. Southwest winds around 5 mph, becoming south in the afternoon. Chance of rain 20 percent. .SATURDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 70s. South winds 5 to 10 mph. .SUNDAY...Patchy fog in the morning. Sunny, hot with highs in the upper 90s. Southwest winds around 5 mph, increasing to south 10 to 15 mph in the afternoon. Heat index values up to 107. .SUNDAY NIGHT...Mostly clear. Lows in the upper 70s. South winds 10 to 15 mph. .MONDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 110. .MONDAY NIGHT...Mostly clear. Lows in the upper 70s. Heat index values up to 105 early in the evening. .TUESDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 115. .TUESDAY NIGHT...Clear. Lows in the upper 70s. Heat index values up to 110 early in the evening. .WEDNESDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 115. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 70s. Heat index values up to 110 early in the evening. .THURSDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 110. .THURSDAY NIGHT...Mostly clear. Lows in the upper 70s. Heat index values up to 110 early in the evening. .FRIDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 110. $$ TXZ200-220300- Northern Liberty- Including the cities of Liberty, Cleveland, and Dayton 248 PM CDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT SATURDAY... .TONIGHT...Partly cloudy with a slight chance of showers with isolated thunderstorms. Lows in the mid 70s. South winds 5 to 10 mph. Chance of rain 20 percent. Heat index values up to 109 early this evening. .SATURDAY...Mostly sunny. A slight chance of showers with isolated thunderstorms in the afternoon. Hot with highs around 101. Southwest winds around 5 mph. Chance of rain 20 percent. Heat index values up to 110. .SATURDAY NIGHT...Partly cloudy. Lows in the mid 70s. South winds around 5 mph. Heat index values up to 108 early in the evening. .SUNDAY...Mostly sunny. Hot with highs around 100. South winds around 5 mph. Heat index values up to 109. .SUNDAY NIGHT...Mostly clear. Lows in the upper 70s. South winds around 5 mph. Heat index values up to 108 early in the evening. .MONDAY...Mostly sunny. Hot with highs around 100. Heat index values up to 110. .MONDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index values up to 105 early in the evening. .TUESDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 110. .TUESDAY NIGHT...Clear. Lows in the mid 70s. Heat index values up to 110 early in the evening. .WEDNESDAY...Sunny, hot with highs around 100. Heat index values up to 110. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index values up to 110 early in the evening. .THURSDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 110. .THURSDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index values up to 110 early in the evening. .FRIDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 110. $$ TXZ176-220300- Madison- Including the city of Madisonville 248 PM CDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT SATURDAY... .TONIGHT...Partly cloudy this evening, then becoming mostly cloudy. A chance of showers with isolated thunderstorms. Lows in the upper 70s. South winds 5 to 10 mph. Chance of rain 40 percent. Heat index values up to 106 early this evening. .SATURDAY...Mostly sunny. A slight chance of showers with isolated thunderstorms in the afternoon. Hot with highs around 103. Southwest winds around 5 mph. Chance of rain 20 percent. Heat index values up to 109. .SATURDAY NIGHT...Partly cloudy. Lows in the upper 70s. South winds around 5 mph. Heat index values up to 107 early in the evening. .SUNDAY...Mostly sunny. Hot with highs around 103. South winds 5 to 10 mph. .SUNDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 70s. South winds 5 to 10 mph. Heat index values up to 106 early in the evening. .MONDAY...Sunny, hot with highs around 100. .MONDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index values up to 105 early in the evening. .TUESDAY...Sunny, hot with highs around 100. Heat index values up to 115 in the afternoon. .TUESDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index values up to 110 early in the evening. .WEDNESDAY...Sunny, hot with highs around 100. Heat index values up to 115. .WEDNESDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 70s. Heat index values up to 110 early in the evening. .THURSDAY...Mostly sunny. Hot with highs around 100. Heat index values up to 115. .THURSDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index values up to 110 early in the evening. .FRIDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 110. $$ TXZ236-220300- Inland Matagorda- Including the city of Bay City 248 PM CDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT SATURDAY... .TONIGHT...Mostly clear. Patchy fog after midnight. Lows in the upper 70s. South winds 5 to 10 mph. Heat index values up to 105 early this evening. .SATURDAY...Mostly sunny. Patchy fog in the morning. A slight chance of showers with isolated thunderstorms in the afternoon. Hot with highs in the upper 90s. Southwest winds 5 to 10 mph. Chance of rain 20 percent. Heat index values up to 107. .SATURDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Humid with lows in the upper 70s. South winds 5 to 10 mph. .SUNDAY...Patchy fog in the morning. Mostly sunny. Hot with highs in the mid 90s. South winds 5 to 10 mph. Heat index values up to 106. .SUNDAY NIGHT...Mostly clear. Humid with lows in the upper 70s. South winds 5 to 10 mph. .MONDAY...Sunny, hot with highs in the mid 90s. Heat index values up to 105. .MONDAY NIGHT...Mostly clear. Lows in the upper 70s. .TUESDAY...Sunny, hot with highs in the mid 90s. Heat index values up to 110. .TUESDAY NIGHT...Clear. Lows in the upper 70s. Heat index values up to 105 early in the evening. .WEDNESDAY...Sunny, hot with highs in the mid 90s. Heat index values up to 110. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 70s. Heat index values up to 105 early in the evening. .THURSDAY...Sunny, hot with highs in the mid 90s. Heat index values up to 110. .THURSDAY NIGHT...Mostly clear. Lows in the upper 70s. Heat index values up to 105 early in the evening. .FRIDAY...Sunny, hot with highs in the mid 90s. Heat index values up to 110. $$ TXZ199-220300- Montgomery- Including the cities of Conroe and The Woodlands 248 PM CDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT SATURDAY... .TONIGHT...Mostly clear this evening, then becoming partly cloudy. A slight chance of showers with isolated thunderstorms. Lows in the upper 70s. South winds 5 to 10 mph. Chance of rain 20 percent. Heat index values up to 107 early this evening. .SATURDAY...Mostly sunny. A slight chance of showers with isolated thunderstorms in the afternoon. Hot with highs around 102. Southwest winds around 5 mph. Chance of rain 20 percent. Heat index values up to 110. .SATURDAY NIGHT...Partly cloudy. Lows in the upper 70s. South winds 5 to 10 mph. Heat index values up to 108 early in the evening. .SUNDAY...Mostly sunny. Hot with highs around 100. South winds 5 to 10 mph. Heat index values up to 108. .SUNDAY NIGHT...Mostly clear. Lows in the upper 70s. South winds around 5 mph. Heat index values up to 107 early in the evening. .MONDAY...Mostly sunny. Hot with highs around 100. Heat index values up to 110. .MONDAY NIGHT...Mostly clear. Lows in the upper 70s. Heat index values up to 105 early in the evening. .TUESDAY...Sunny, hot with highs around 100. Heat index values up to 110. .TUESDAY NIGHT...Clear. Lows in the upper 70s. Heat index values up to 110 early in the evening. .WEDNESDAY...Sunny, hot with highs around 100. Heat index values up to 110. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 70s. Heat index values up to 110 early in the evening. .THURSDAY...Mostly sunny. Hot with highs in the upper 90s. Heat index values up to 110. .THURSDAY NIGHT...Partly cloudy in the evening, then becoming mostly clear. Lows in the mid 70s. Heat index values up to 105 early in the evening. .FRIDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 110. $$ TXZ179-220300- Polk- Including the cities of Livingston and Corrigan 248 PM CDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT SATURDAY... .TONIGHT...Mostly cloudy with a chance of showers and thunderstorms. Some thunderstorms may produce gusty winds. Lows in the upper 70s. South winds around 5 mph. Chance of rain 50 percent. Heat index values up to 107 early this evening. .SATURDAY...Mostly sunny. A slight chance of showers with isolated thunderstorms in the afternoon. Hot with highs around 102. West winds around 5 mph. Chance of rain 20 percent. Heat index values up to 111. .SATURDAY NIGHT...Partly cloudy. Lows in the upper 70s. South winds around 5 mph. Heat index values up to 107 early in the evening. .SUNDAY...Mostly sunny. Hot with highs around 101. Southwest winds around 5 mph. Heat index values up to 110. .SUNDAY NIGHT...Partly cloudy. Lows in the upper 70s. South winds around 5 mph. Heat index values up to 109 early in the evening. .MONDAY...Mostly sunny. Hot with highs around 100. Heat index values up to 110. .MONDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index values up to 105 early in the evening. .TUESDAY...Sunny, hot with highs around 100. Heat index values up to 110. .TUESDAY NIGHT...Clear. Lows in the upper 70s. Heat index values up to 110 early in the evening. .WEDNESDAY...Sunny, hot with highs around 100. Heat index values up to 110. .WEDNESDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 70s. Heat index values up to 110 early in the evening. .THURSDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 110. .THURSDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index values up to 110 early in the evening. .FRIDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 110. $$ TXZ178-220300- San Jacinto- Including the cities of Shepherd and Coldspring 248 PM CDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT SATURDAY... .TONIGHT...Partly cloudy with a chance of showers with isolated thunderstorms. Some thunderstorms may produce gusty winds. Lows in the upper 70s. South winds around 5 mph. Chance of rain 50 percent. Heat index values up to 106 early this evening. .SATURDAY...Mostly sunny. A slight chance of showers with isolated thunderstorms in the afternoon. Hot with highs around 101. Southwest winds around 5 mph. Chance of rain 20 percent. Heat index values up to 109. .SATURDAY NIGHT...Partly cloudy. Lows in the upper 70s. South winds around 5 mph. Heat index values up to 106 early in the evening. .SUNDAY...Mostly sunny. Hot with highs around 100. South winds around 5 mph. Heat index values up to 109. .SUNDAY NIGHT...Mostly clear. Lows in the upper 70s. South winds around 5 mph. Heat index values up to 107 early in the evening. .MONDAY...Mostly sunny. Hot with highs around 100. Heat index values up to 110. .MONDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index values up to 105 early in the evening. .TUESDAY...Sunny, hot with highs around 100. Heat index values up to 110 in the afternoon. .TUESDAY NIGHT...Clear. Lows in the mid 70s. Heat index values up to 110 early in the evening. .WEDNESDAY...Sunny, hot with highs around 100. Heat index values up to 110. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index values up to 110 early in the evening. .THURSDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 110. .THURSDAY NIGHT...Partly cloudy in the evening, then becoming mostly clear. Lows in the mid 70s. Heat index values up to 110 early in the evening. .FRIDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 110. $$ TXZ164-220300- Trinity- Including the cities of Trinity and Groveton 248 PM CDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT SATURDAY... .TONIGHT...Mostly cloudy this evening, then becoming partly cloudy. A chance of showers and thunderstorms. Some thunderstorms may produce gusty winds. Lows in the upper 70s. South winds around 5 mph. Chance of rain 50 percent. Heat index values up to 108 early this evening. .SATURDAY...Mostly sunny. A slight chance of showers with isolated thunderstorms in the afternoon. Hot with highs around 103. Southwest winds around 5 mph. Chance of rain 20 percent. Heat index values up to 110. .SATURDAY NIGHT...Partly cloudy. Lows in the upper 70s. South winds around 5 mph. Heat index values up to 107 early in the evening. .SUNDAY...Mostly sunny. Hot with highs around 101. South winds around 5 mph. Heat index values up to 108. .SUNDAY NIGHT...Partly cloudy. Lows in the upper 70s. South winds around 5 mph. Heat index values up to 106 early in the evening. .MONDAY...Mostly sunny. Hot with highs around 100. .MONDAY NIGHT...Mostly clear. Lows in the upper 70s. .TUESDAY...Sunny, hot with highs around 100. Heat index values up to 110. .TUESDAY NIGHT...Mostly clear. Lows in the upper 70s. Heat index values up to 110 early in the evening. .WEDNESDAY...Sunny, hot with highs around 100. Heat index values up to 110. .WEDNESDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 70s. Heat index values up to 105 early in the evening. .THURSDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 110. .THURSDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index values up to 105 early in the evening. .FRIDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 105. $$ TXZ177-220300- Walker- Including the city of Huntsville 248 PM CDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT SATURDAY... .TONIGHT...Partly cloudy this evening, then becoming mostly cloudy. A chance of showers with isolated thunderstorms. Some thunderstorms may produce gusty winds. Lows in the upper 70s. South winds 5 to 10 mph. Chance of rain 40 percent. Heat index values up to 106 early this evening. .SATURDAY...Mostly sunny. A slight chance of showers with isolated thunderstorms in the afternoon. Hot with highs around 102. Southwest winds around 5 mph. Chance of rain 20 percent. .SATURDAY NIGHT...Partly cloudy. Lows in the upper 70s. South winds around 5 mph. Heat index values up to 106 early in the evening. .SUNDAY...Mostly sunny. Hot with highs around 102. South winds 5 to 10 mph. .SUNDAY NIGHT...Mostly clear. Lows in the upper 70s. South winds 5 to 10 mph. Heat index values up to 106 early in the evening. .MONDAY...Mostly sunny. Hot with highs around 100. .MONDAY NIGHT...Mostly clear. Lows in the upper 70s. Heat index values up to 105 early in the evening. .TUESDAY...Sunny, hot with highs around 100. Heat index values up to 110. .TUESDAY NIGHT...Mostly clear. Lows in the upper 70s. Heat index values up to 110 early in the evening. .WEDNESDAY...Sunny, hot with highs around 100. Heat index values up to 110. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 70s. Heat index values up to 110 early in the evening. .THURSDAY...Mostly sunny. Hot with highs around 100. Heat index values up to 110. .THURSDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index values up to 105 early in the evening. .FRIDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 110. $$ TXZ212-220300- Waller- Including the cities of Hempstead, Prairie View, Brookshire, and Waller 248 PM CDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT SATURDAY... .TONIGHT...Mostly clear this evening, then becoming partly cloudy. A slight chance of showers with isolated thunderstorms. Lows in the upper 70s. South winds 5 to 10 mph. Chance of rain 20 percent. Heat index values up to 106 early this evening. .SATURDAY...Mostly sunny. A slight chance of showers with isolated thunderstorms in the afternoon. Hot with highs around 101. Southwest winds around 5 mph. Chance of rain 20 percent. .SATURDAY NIGHT...Partly cloudy. Lows in the upper 70s. South winds 5 to 10 mph. Heat index values up to 106 early in the evening. .SUNDAY...Mostly sunny. Hot with highs around 100. South winds 5 to 10 mph. .SUNDAY NIGHT...Mostly clear. Lows in the upper 70s. South winds 5 to 10 mph. Heat index values up to 105 early in the evening. .MONDAY...Sunny, hot with highs around 100. .MONDAY NIGHT...Mostly clear. Lows in the upper 70s. Heat index values up to 105 early in the evening. .TUESDAY...Sunny, hot with highs around 100. Heat index values up to 110. .TUESDAY NIGHT...Clear. Lows in the upper 70s. Heat index values up to 105 early in the evening. .WEDNESDAY...Sunny, hot with highs around 100. Heat index values up to 110. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 70s. Heat index values up to 105 early in the evening. .THURSDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 110. .THURSDAY NIGHT...Partly cloudy in the evening, then becoming mostly clear. Lows in the mid 70s. Heat index values up to 105 early in the evening. .FRIDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 110. $$ TXZ197-220300- Washington- Including the city of Brenham 248 PM CDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT SATURDAY... .TONIGHT...Mostly clear this evening, then becoming partly cloudy. A slight chance of showers with isolated thunderstorms. Lows in the upper 70s. South winds 5 to 10 mph. Chance of rain 20 percent. Heat index values up to 105 early this evening. .SATURDAY...Mostly sunny. A slight chance of showers with isolated thunderstorms in the afternoon. Hot with highs around 102. Southwest winds 5 to 10 mph. Chance of rain 20 percent. .SATURDAY NIGHT...Partly cloudy. Lows in the upper 70s. South winds 5 to 10 mph. Heat index values up to 105 early in the evening. .SUNDAY...Mostly sunny. Hot with highs around 101. South winds 5 to 10 mph. .SUNDAY NIGHT...Mostly clear. Lows in the upper 70s. South winds 5 to 10 mph. .MONDAY...Sunny, hot with highs around 100. .MONDAY NIGHT...Mostly clear. Lows in the upper 70s. .TUESDAY...Sunny, hot with highs around 100. Heat index values up to 110. .TUESDAY NIGHT...Clear. Lows in the upper 70s. Heat index values up to 105 early in the evening. .WEDNESDAY...Sunny, hot with highs around 100. Heat index values up to 110. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 70s. Heat index values up to 105 early in the evening. .THURSDAY...Mostly sunny. Hot with highs in the upper 90s. Heat index values up to 110. .THURSDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index values up to 105 early in the evening. .FRIDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 110. $$ TXZ226-220300- Wharton- Including the cities of El Campo and Wharton 248 PM CDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT SATURDAY... .TONIGHT...Mostly clear. Patchy fog after midnight. Lows in the mid 70s. South winds 10 to 15 mph. Heat index values up to 105 early this evening. .SATURDAY...Mostly sunny. Patchy fog in the morning. A slight chance of showers with isolated thunderstorms in the afternoon. Hot with highs around 100. Southwest winds 5 to 10 mph. Chance of rain 20 percent. .SATURDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 70s. South winds 5 to 10 mph. .SUNDAY...Patchy fog in the morning. Mostly sunny. Hot with highs in the upper 90s. South winds 5 to 10 mph. Heat index values up to 106. .SUNDAY NIGHT...Mostly clear. Lows in the upper 70s. South winds 5 to 10 mph. .MONDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 105. .MONDAY NIGHT...Mostly clear. Lows in the mid 70s. .TUESDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 110. .TUESDAY NIGHT...Clear. Lows in the upper 70s. Heat index values up to 105 early in the evening. .WEDNESDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 110. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 70s. Heat index values up to 105 early in the evening. .THURSDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 110. .THURSDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index values up to 105 early in the evening. .FRIDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 110. $$ TXZ300-220300- Southern Liberty- Including the city of Devers 248 PM CDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT SATURDAY... .TONIGHT...Mostly clear this evening, then becoming partly cloudy. A slight chance of showers with isolated thunderstorms. Lows in the upper 70s. Southwest winds 5 to 10 mph. Chance of rain 20 percent. Heat index values up to 110 early this evening. .SATURDAY...Mostly sunny. A slight chance of showers with isolated thunderstorms in the afternoon. Hot with highs in the upper 90s. Southwest winds around 5 mph. Chance of rain 20 percent. Heat index values up to 111. .SATURDAY NIGHT...Partly cloudy. Humid with lows in the upper 70s. Southwest winds 5 to 10 mph. Heat index values up to 110 early in the evening. .SUNDAY...Sunny, hot with highs in the upper 90s. Southwest winds 5 to 10 mph. Heat index values up to 108. .SUNDAY NIGHT...Mostly clear. Humid with lows in the upper 70s. South winds around 5 mph. Heat index values up to 108 early in the evening. .MONDAY...Mostly sunny. Hot with highs in the upper 90s. Heat index values up to 105. .MONDAY NIGHT...Mostly clear. Lows in the upper 70s. .TUESDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 110. .TUESDAY NIGHT...Clear. Lows in the upper 70s. Heat index values up to 105 early in the evening. .WEDNESDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 110. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 70s. Heat index values up to 105 early in the evening. .THURSDAY...Mostly sunny. Hot with highs in the mid 90s. Heat index values up to 110. .THURSDAY NIGHT...Mostly clear. Lows in the mid 70s. Heat index values up to 105 early in the evening. .FRIDAY...Sunny, hot with highs in the mid 90s. Heat index values up to 105. $$ TXZ313-220300- Coastal Harris- Including the cities of Pasadena and Baytown 248 PM CDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT SATURDAY... .TONIGHT...Mostly clear this evening, then becoming partly cloudy. A slight chance of showers with isolated thunderstorms. Lows around 80. Southwest winds 5 to 10 mph. Chance of rain 20 percent. Heat index values up to 110 early this evening. .SATURDAY...Mostly sunny. A slight chance of showers with isolated thunderstorms in the afternoon. Hot with highs in the upper 90s. Southwest winds 5 to 10 mph. Chance of rain 20 percent. Heat index values up to 109. .SATURDAY NIGHT...Partly cloudy. Lows around 80. Southwest winds 5 to 10 mph. Heat index values up to 109 early in the evening. .SUNDAY...Sunny, hot with highs in the upper 90s. Southwest winds around 5 mph, becoming south 10 to 15 mph in the afternoon. Heat index values up to 108. .SUNDAY NIGHT...Mostly clear. Lows around 80. South winds 5 to 10 mph. Heat index values up to 106 early in the evening. .MONDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 110. .MONDAY NIGHT...Mostly clear. Lows around 80. .TUESDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 110. .TUESDAY NIGHT...Mostly clear. Lows around 80. Heat index values up to 105 early in the evening. .WEDNESDAY...Sunny, hot with highs in the upper 90s. Heat index values up to 110. .WEDNESDAY NIGHT...Mostly clear. Lows around 80. Heat index values up to 105 early in the evening. .THURSDAY...Sunny, hot with highs in the mid 90s. Heat index values up to 110. .THURSDAY NIGHT...Mostly clear. Lows in the upper 70s. Heat index values up to 105 early in the evening. .FRIDAY...Sunny, hot with highs in the mid 90s. Heat index values up to 110. $$ TXZ338-220300- Coastal Galveston- Including the cities of Texas City, Dickinson, and La Marque 248 PM CDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT SATURDAY... .TONIGHT...Mostly clear this evening, then becoming partly cloudy. A slight chance of showers with isolated thunderstorms. Lows in the upper 70s. Southwest winds 10 to 15 mph. Chance of rain 20 percent. Heat index values up to 109 early this evening. .SATURDAY...Mostly sunny. Hot with highs in the mid 90s. West winds 5 to 10 mph, becoming south 10 to 15 mph in the afternoon. Heat index values up to 111. .SATURDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Humid with lows in the upper 70s. Southwest winds 10 to 15 mph. Heat index values up to 108 early in the evening. .SUNDAY...Sunny, hot with highs in the mid 90s. Southwest winds around 5 mph, becoming south 10 to 15 mph in the afternoon. Heat index values up to 109. .SUNDAY NIGHT...Mostly clear. Humid with lows in the upper 70s. Southwest winds 10 to 15 mph. Heat index values up to 106 early in the evening. .MONDAY...Sunny. Highs in the mid 90s. Heat index values up to 110. .MONDAY NIGHT...Mostly clear. Lows around 80. .TUESDAY...Sunny, hot with highs in the mid 90s. Heat index values up to 110. .TUESDAY NIGHT...Clear. Lows in the upper 70s. Heat index values up to 105 early in the evening. .WEDNESDAY...Sunny, hot with highs in the mid 90s. Heat index values up to 115. .WEDNESDAY NIGHT...Mostly clear. Lows around 80. Heat index values up to 105 early in the evening. .THURSDAY...Sunny. Highs in the mid 90s. Heat index values up to 110. .THURSDAY NIGHT...Mostly clear. Lows in the upper 70s. Heat index values up to 105 early in the evening. .FRIDAY...Sunny. Highs in the lower 90s. Heat index values up to 110. $$ TXZ337-220300- Coastal Brazoria- Including the cities of Lake Jackson, Freeport, and Clute 248 PM CDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT SATURDAY... .TONIGHT...Mostly clear this evening, then becoming partly cloudy. Lows in the upper 70s. Southwest winds 10 to 15 mph. Heat index values up to 105 early this evening. .SATURDAY...Mostly sunny. Hot with highs in the mid 90s. West winds around 5 mph, becoming south 10 to 15 mph in the afternoon. Heat index values up to 108. .SATURDAY NIGHT...Mostly clear. Humid with lows in the upper 70s. Southwest winds 10 to 15 mph. .SUNDAY...Sunny with highs in the mid 90s. Southwest winds around 5 mph, increasing to south 10 to 15 mph in the afternoon. Heat index values up to 106. .SUNDAY NIGHT...Mostly clear. Humid with lows in the upper 70s. South winds 5 to 10 mph. .MONDAY...Sunny. Highs in the mid 90s. Heat index values up to 105. .MONDAY NIGHT...Mostly clear. Lows in the upper 70s. .TUESDAY...Sunny. Highs in the mid 90s. Heat index values up to 105. .TUESDAY NIGHT...Clear. Lows in the upper 70s. .WEDNESDAY...Sunny. Highs in the mid 90s. Heat index values up to 110. .WEDNESDAY NIGHT...Mostly clear. Lows in the upper 70s. .THURSDAY...Sunny. Highs in the mid 90s. Heat index values up to 110. .THURSDAY NIGHT...Mostly clear. Lows in the upper 70s. .FRIDAY...Sunny. Highs in the lower 90s. Heat index values up to 105. $$ TXZ336-220300- Coastal Matagorda- Including the city of Palacios 248 PM CDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT SATURDAY... .TONIGHT...Mostly clear. Lows around 80. South winds 5 to 10 mph. Heat index values up to 105 early this evening. .SATURDAY...Mostly sunny. Humid with highs in the lower 90s. Southwest winds 5 to 10 mph, becoming south 10 to 15 mph in the afternoon. Heat index values up to 108. .SATURDAY NIGHT...Mostly clear. Humid with lows in the upper 70s. South winds 10 to 15 mph. .SUNDAY...Sunny with highs in the lower 90s. Southwest winds around 5 mph, becoming south 10 to 15 mph in the afternoon. Heat index values up to 107. .SUNDAY NIGHT...Mostly clear. Humid with lows around 80. South winds 10 to 15 mph. .MONDAY...Sunny. Highs in the lower 90s. Heat index values up to 105. .MONDAY NIGHT...Mostly clear. Lows around 80. .TUESDAY...Sunny. Highs in the lower 90s. Heat index values up to 110. .TUESDAY NIGHT...Clear. Lows around 80. .WEDNESDAY...Sunny. Highs in the lower 90s. Heat index values up to 110. .WEDNESDAY NIGHT...Mostly clear. Lows around 80. Heat index values up to 105 early in the evening. .THURSDAY...Sunny. Highs in the lower 90s. Heat index values up to 110. .THURSDAY NIGHT...Mostly clear. Lows around 80. Heat index values up to 105 early in the evening. .FRIDAY...Sunny. Highs in the lower 90s. Heat index values up to 110. $$ TXZ335-220300- Coastal Jackson- 248 PM CDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT SATURDAY... .TONIGHT...Mostly clear. Lows in the upper 70s. South winds 10 to 15 mph. Heat index values up to 105 early this evening. .SATURDAY...Mostly sunny. Hot with highs in the upper 90s. Southwest winds around 5 mph, becoming south 10 to 15 mph in the afternoon. Heat index values up to 106. .SATURDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Humid with lows in the upper 70s. South winds 10 to 15 mph. .SUNDAY...Sunny, hot with highs in the mid 90s. Southwest winds around 5 mph, becoming south 10 to 15 mph in the afternoon. Heat index values up to 106. .SUNDAY NIGHT...Mostly clear. Humid with lows in the upper 70s. South winds 10 to 15 mph. .MONDAY...Sunny, hot with highs in the mid 90s. Heat index values up to 105. .MONDAY NIGHT...Mostly clear. Lows in the upper 70s. .TUESDAY...Sunny, hot with highs in the mid 90s. Heat index values up to 110. .TUESDAY NIGHT...Clear. Lows around 80. Heat index values up to 105 early in the evening. .WEDNESDAY...Sunny, hot with highs in the mid 90s. Heat index values up to 110. .WEDNESDAY NIGHT...Clear. Lows in the upper 70s. Heat index values up to 105 early in the evening. .THURSDAY...Sunny, hot with highs in the mid 90s. Heat index values up to 110. .THURSDAY NIGHT...Mostly clear. Lows in the upper 70s. Heat index values up to 105 early in the evening. .FRIDAY...Sunny, hot with highs in the mid 90s. Heat index values up to 110. $$ TXZ436-220300- Matagorda Islands- 248 PM CDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT SATURDAY... .TONIGHT...Partly cloudy. Lows in the lower 80s. South winds 10 to 15 mph. .SATURDAY...Mostly sunny. Humid with highs in the upper 80s. Southwest winds 10 to 15 mph. Heat index values up to 105. .SATURDAY NIGHT...Mostly clear. Humid with lows in the lower 80s. South winds 10 to 15 mph. .SUNDAY...Sunny with highs in the upper 80s. South winds 10 to 15 mph. .SUNDAY NIGHT...Mostly clear. Humid with lows in the lower 80s. South winds 10 to 15 mph. .MONDAY...Sunny. Highs in the upper 80s. .MONDAY NIGHT...Mostly clear. Near steady temperature in the mid 80s. .TUESDAY...Sunny. Near steady temperature in the mid 80s. .TUESDAY NIGHT...Clear. Near steady temperature in the mid 80s. .WEDNESDAY...Sunny. Near steady temperature in the mid 80s. .WEDNESDAY NIGHT...Mostly clear. Near steady temperature in the mid 80s. .THURSDAY...Sunny. Near steady temperature in the mid 80s. .THURSDAY NIGHT...Mostly clear. Near steady temperature in the mid 80s. .FRIDAY...Sunny. Highs in the upper 80s. $$ TXZ437-220300- Brazoria Islands- Including the city of Surfside Beach 248 PM CDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT SATURDAY... .TONIGHT...Partly cloudy. Lows in the lower 80s. Southwest winds 10 to 15 mph. .SATURDAY...Mostly sunny. Humid with highs in the lower 90s. West winds 5 to 10 mph, becoming south 10 to 15 mph in the afternoon. Heat index values up to 107. .SATURDAY NIGHT...Mostly clear. Humid with lows in the lower 80s. Southwest winds 10 to 15 mph. .SUNDAY...Sunny with highs around 90. Southwest winds 5 to 10 mph, becoming south 10 to 15 mph in the afternoon. Heat index values up to 105. .SUNDAY NIGHT...Mostly clear. Humid with lows in the lower 80s. South winds 10 to 15 mph. .MONDAY...Sunny. Highs around 90. .MONDAY NIGHT...Mostly clear. Near steady temperature in the mid 80s. .TUESDAY...Sunny. Highs around 90. Heat index values up to 105. .TUESDAY NIGHT...Mostly clear. Lows in the lower 80s. .WEDNESDAY...Sunny. Highs around 90. Heat index values up to 105. .WEDNESDAY NIGHT...Mostly clear. Lows in the lower 80s. .THURSDAY...Sunny. Highs around 90. Heat index values up to 105. .THURSDAY NIGHT...Mostly clear. Lows in the lower 80s. .FRIDAY...Sunny. Highs in the upper 80s. Heat index values up to 105. $$ TXZ438-220300- Galveston Island- Including the city of Galveston 248 PM CDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT SATURDAY... .TONIGHT...Mostly clear this evening, then becoming partly cloudy. A slight chance of showers with isolated thunderstorms. Lows in the lower 80s. Southwest winds 10 to 15 mph. Chance of rain 20 percent. Heat index values up to 107 early. .SATURDAY...Mostly sunny. Humid with highs in the lower 90s. West winds 5 to 10 mph, becoming south 10 to 15 mph in the afternoon. Heat index values up to 108. .SATURDAY NIGHT...Mostly clear. Humid with lows in the lower 80s. Southwest winds 10 to 15 mph. Heat index values up to 106 early. .SUNDAY...Sunny with highs in the lower 90s. West winds 5 to 10 mph, becoming south 10 to 15 mph in the afternoon. Heat index values up to 107. .SUNDAY NIGHT...Mostly clear. Humid with lows in the mid 80s. Southwest winds 10 to 15 mph. .MONDAY...Sunny. Highs in the lower 90s. Heat index values up to 105. .MONDAY NIGHT...Mostly clear. Lows in the mid 80s. .TUESDAY...Sunny. Highs around 90. Heat index values up to 105. .TUESDAY NIGHT...Clear. Lows in the mid 80s. .WEDNESDAY...Sunny. Highs in the lower 90s. Heat index values up to 105. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 80s. .THURSDAY...Sunny. Highs around 90. Heat index values up to 105. .THURSDAY NIGHT...Mostly clear. Lows in the mid 80s. .FRIDAY...Sunny. Highs around 90. Heat index values up to 105. $$ TXZ439-220300- Bolivar Peninsula- 248 PM CDT Fri Aug 21 2026 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT SATURDAY... .TONIGHT...Mostly clear this evening, then becoming partly cloudy. A slight chance of showers with isolated thunderstorms. Lows in the lower 80s. Southwest winds 10 to 15 mph. Chance of rain 20 percent. Heat index values up to 108 early. .SATURDAY...Mostly sunny. Humid with highs in the lower 90s. West winds 5 to 10 mph, becoming southwest 10 to 15 mph in the afternoon. Heat index values up to 111. .SATURDAY NIGHT...Mostly clear. Humid with lows in the lower 80s. Southwest winds 10 to 15 mph. Heat index values up to 107 early. .SUNDAY...Sunny with highs in the lower 90s. West winds 5 to 10 mph, becoming south 10 to 15 mph in the afternoon. Heat index values up to 109. .SUNDAY NIGHT...Mostly clear. Humid with lows in the lower 80s. Southwest winds 10 to 15 mph. Heat index values up to 105 early. .MONDAY...Sunny. Highs in the lower 90s. Heat index values up to 105. .MONDAY NIGHT...Mostly clear. Lows in the lower 80s. .TUESDAY...Sunny. Highs in the lower 90s. Heat index values up to 110. .TUESDAY NIGHT...Clear. Lows in the mid 80s. .WEDNESDAY...Sunny. Highs in the lower 90s. Heat index values up to 110. .WEDNESDAY NIGHT...Mostly clear. Lows in the lower 80s. Heat index values up to 105 early. .THURSDAY...Sunny. Highs in the lower 90s. Heat index values up to 110. .THURSDAY NIGHT...Partly cloudy in the evening, then becoming mostly clear. Lows in the lower 80s. Heat index values up to 105 early. .FRIDAY...Sunny. Highs in the lower 90s. Heat index values up to 110. $$