Zone Forecast Product
Issued by NWS Boise, ID
Issued by NWS Boise, ID
840
FPUS55 KBOI 300832
ZFPBOI
Zone Forecasts for Southwest Idaho/Southeast Oregon
National Weather Service Boise ID
230 AM MDT Sun Aug 30 2026
Spot temperatures are for today, tonight, and Monday.
IDZ011-301600-
West Central Mountains-
230 AM MDT Sun Aug 30 2026
.TODAY...Areas of fog this morning. Sunny. Highs 61 to 75.
.TONIGHT...Mostly clear. Lows 37 to 48.
.MONDAY...Sunny. Patchy smoke. Warmer with highs 71 to 85.
.MONDAY NIGHT...Increasing clouds. Lows 45 to 56.
.TUESDAY...Rain showers likely. A slight chance of thunderstorms
in the afternoon. Chance of rain 60 percent. Highs 70 to 83.
.TUESDAY NIGHT AND WEDNESDAY...Rain showers likely with a slight
chance of thunderstorms. Areas of fog through the day. Chance of
rain 60 percent. Cooler. Lows 43 to 54. Highs 58 to 72.
.WEDNESDAY NIGHT...Mostly cloudy. A chance of rain showers after
midnight. Patchy fog after midnight. Chance of rain 30 percent.
Lows 38 to 49.
.THURSDAY...Areas of fog in the morning. Mostly cloudy with a
chance of rain showers in the morning, then rain showers likely
with a slight chance of thunderstorms in the afternoon. Chance of
rain 60 percent. Highs 56 to 69.
.THURSDAY NIGHT...Decreasing clouds. A slight chance of
thunderstorms in the evening. A chance of rain showers. Areas of
fog after midnight. Chance of rain 30 percent. Lows 38 to 48.
.FRIDAY...Mostly sunny. Areas of fog in the morning. A chance of
rain showers, mainly in the morning. Chance of rain 30 percent.
Highs 61 to 74.
.FRIDAY NIGHT AND SATURDAY...Partly cloudy. A 20 percent chance
of rain showers. Areas of fog through the day. Lows 39 to 49.
Highs 65 to 77.
&&
TEMPERATURE
McCall 69 35 79
$$
=
IDZ013-301600-
Boise Mountains-
230 AM MDT Sun Aug 30 2026
.TODAY...Sunny. Areas of fog and smoke this morning. Patchy smoke
this afternoon. Highs 64 to 78.
.TONIGHT...Mostly clear. Patchy smoke. Lows 34 to 49.
.MONDAY...Sunny. Smoke in the morning. Patchy smoke in the
afternoon. Warmer with highs 74 to 89.
.MONDAY NIGHT...Increasing clouds. Patchy smoke. Lows 43 to 58.
.TUESDAY...A chance of rain showers in the morning, then rain
showers likely with a slight chance of thunderstorms in the
afternoon. Patchy smoke. Chance of rain 60 percent. Highs 72 to
87.
.TUESDAY NIGHT...A chance of rain showers with a slight chance of
thunderstorms in the evening, then rain showers likely after
midnight. Chance of rain 60 percent. Lows 40 to 55.
.WEDNESDAY...Patchy fog in the morning. Rain showers likely in
the morning, then a slight chance of rain showers and
thunderstorms in the afternoon. Chance of rain 60 percent. Cooler
with highs 61 to 76.
.WEDNESDAY NIGHT...Mostly cloudy. A slight chance of rain showers
after midnight. Chance of rain 20 percent. Lows 35 to 50.
.THURSDAY...Partly cloudy. A chance of rain showers, mainly in
the morning. Chance of rain 30 percent. Highs 61 to 76.
.THURSDAY NIGHT...Partly cloudy. A slight chance of rain showers
in the evening. Patchy fog after midnight. Chance of rain
20 percent. Lows 34 to 49.
.FRIDAY...Areas of fog in the morning. Mostly sunny. Highs 66 to
80.
.FRIDAY NIGHT...Increasing clouds. Lows 36 to 51.
.SATURDAY...Partly cloudy. A slight chance of rain showers in the
afternoon. Chance of rain 20 percent. Highs 68 to 82.
&&
TEMPERATURE
Idaho City 77 34 87
$$
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IDZ028-301600-
Camas Prairie-
230 AM MDT Sun Aug 30 2026
.TODAY...Sunny. Highs 71 to 76. West winds 10 to 15 mph with
gusts to 25 mph.
.TONIGHT...Mostly clear. Patchy smoke after midnight. Lows 31 to
40. West winds 10 to 15 mph with gusts to 30 mph in the evening,
becoming light after midnight.
.MONDAY...Patchy smoke in the morning. Sunny. Highs 79 to 84.
Light winds in the morning, becoming southeast around 10 mph in
the afternoon.
.MONDAY NIGHT...Partly cloudy. Not as cool with lows 44 to 50.
Southeast winds up to 10 mph.
.TUESDAY...Partly cloudy with a slight chance of showers. A
slight chance of thunderstorms in the afternoon. Chance of rain
20 percent. Highs 77 to 82. East winds 10 to 15 mph with gusts to
25 mph.
.TUESDAY NIGHT...Decreasing clouds. A slight chance of
thunderstorms in the evening. A chance of showers. Chance of rain
30 percent. Lows 44 to 49.
.WEDNESDAY...Partly cloudy. A chance of showers in the morning.
Chance of rain 30 percent. Highs 69 to 74.
.WEDNESDAY NIGHT...Decreasing clouds. Lows 38 to 44.
.THURSDAY...Partly sunny in the morning, then clearing. Highs
70 to 75.
.THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows 38 to 44. Highs
74 to 79.
.FRIDAY NIGHT AND SATURDAY...Partly cloudy. Lows 41 to 47. Highs
75 to 80.
&&
TEMPERATURE
Fairfield 74 32 82
$$
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IDZ033-301600-
Upper Weiser River-
230 AM MDT Sun Aug 30 2026
.TODAY...Sunny. Highs 72 to 78. Southwest winds up to 10 mph.
.TONIGHT...Mostly clear. Lows 45 to 53. Light winds in the
evening, becoming northeast up to 10 mph after midnight.
.MONDAY...Sunny, warmer with highs 83 to 89. Northeast winds up
to 10 mph in the morning, shifting to south in the afternoon.
.MONDAY NIGHT...Increasing clouds. Lows 55 to 61. Light winds.
.TUESDAY...Partly cloudy with a slight chance of showers. A
slight chance of thunderstorms in the afternoon. Chance of rain
20 percent. Highs 80 to 86. Northeast winds up to 10 mph in the
morning, shifting to south around 10 mph in the afternoon.
.TUESDAY NIGHT AND WEDNESDAY...Mostly cloudy. A chance of showers
with a slight chance of thunderstorms. Chance of rain 30 percent.
Lows 54 to 59. Highs 72 to 77.
.WEDNESDAY NIGHT...Mostly cloudy. A chance of showers after
midnight. Chance of rain 30 percent. Lows 49 to 55.
.THURSDAY...Decreasing clouds. A chance of showers. A slight
chance of thunderstorms in the afternoon. Chance of rain
40 percent. Highs 67 to 73.
.THURSDAY NIGHT...Mostly cloudy in the evening, then becoming
partly cloudy. A slight chance of thunderstorms in the evening. A
chance of showers. Chance of rain 30 percent. Lows 47 to 52.
.FRIDAY...Partly cloudy with a 20 percent chance of showers.
Highs 71 to 77.
.FRIDAY NIGHT...Mostly clear in the evening, then partly cloudy
with a slight chance of showers after midnight. Chance of rain
20 percent. Lows 48 to 54.
.SATURDAY...Partly cloudy with a 20 percent chance of showers.
Highs 74 to 80.
&&
TEMPERATURE
Council 78 50 88
Cambridge 78 45 88
$$
=
ORZ064-301600-
Oregon Lower Treasure Valley-
230 AM MDT Sun Aug 30 2026 /130 AM PDT Sun Aug 30 2026/
.TODAY...Sunny. Highs 76 to 81. West winds 10 to 15 mph this
morning, becoming light this afternoon.
.TONIGHT...Mostly clear. Lows 45 to 53. Light winds in the
evening, becoming west up to 10 mph after midnight.
.MONDAY...Sunny. Highs 85 to 90. Light winds in the morning,
becoming southeast up to 10 mph in the afternoon.
.MONDAY NIGHT...Increasing clouds. Warmer with lows 55 to 61.
Light winds.
.TUESDAY...Partly sunny. Highs 85 to 90. Light winds.
.TUESDAY NIGHT...Increasing clouds. Lows 54 to 60.
.WEDNESDAY...Mostly sunny. Highs 76 to 81.
.WEDNESDAY NIGHT...Increasing clouds. A slight chance of showers
after midnight. Chance of rain 20 percent. Lows 50 to 56.
.THURSDAY...Mostly cloudy in the morning, then becoming partly
sunny. A 30 percent chance of showers. Highs 71 to 76.
.THURSDAY NIGHT...Mostly cloudy with a slight chance of showers
in the evening, then partly cloudy after midnight. Patchy fog
after midnight. Chance of rain 20 percent. Lows 47 to 53.
.FRIDAY...Partly cloudy. A slight chance of showers in the
morning. Patchy fog in the morning. Chance of rain 20 percent.
Highs 74 to 79.
.FRIDAY NIGHT AND SATURDAY...Partly cloudy. Lows 48 to 54. Highs
78 to 83.
&&
TEMPERATURE
Ontario 79 45 88
$$
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IDZ012-301600-
Lower Treasure Valley-
230 AM MDT Sun Aug 30 2026
.TODAY...Sunny. Highs 75 to 80. Northwest winds up to 10 mph.
.TONIGHT...Mostly clear. Lows 44 to 50. Light winds.
.MONDAY...Sunny, warmer with highs 85 to 90. Southeast winds up
to 10 mph.
.MONDAY NIGHT...Increasing clouds. Warmer with lows 56 to 61.
East winds up to 10 mph.
.TUESDAY...Mostly sunny. Highs 85 to 90. Southeast winds up to
10 mph in the morning, shifting to southwest around 10 mph in the
afternoon.
.TUESDAY NIGHT...Increasing clouds. A slight chance of
thunderstorms in the evening. A slight chance of showers. Chance
of rain 20 percent. Lows 55 to 60.
.WEDNESDAY...Partly cloudy. A slight chance of showers in the
morning. Chance of rain 20 percent. Highs 76 to 81.
.WEDNESDAY NIGHT...Mostly cloudy. A slight chance of showers
after midnight. Chance of rain 20 percent. Lows 50 to 55.
.THURSDAY...Decreasing clouds. A 30 percent chance of showers.
Highs 71 to 76.
.THURSDAY NIGHT...Partly cloudy with a 20 percent chance of
showers. Areas of fog after midnight. Lows 47 to 52.
.FRIDAY...Areas of fog in the morning. Mostly sunny. Highs 74 to
79.
.FRIDAY NIGHT...Increasing clouds. Areas of fog after midnight.
Lows 48 to 53.
.SATURDAY...Areas of fog in the morning. Mostly sunny. Highs
78 to 83.
&&
TEMPERATURE
Caldwell 78 44 88
$$
=
IDZ014-301600-
Upper Treasure Valley-
230 AM MDT Sun Aug 30 2026
.TODAY...Patchy fog this morning. Sunny. Highs 76 to 81.
Northwest winds 10 to 15 mph with gusts to 25 mph.
.TONIGHT...Mostly clear. Lows 43 to 51. Northwest winds up to
10 mph in the evening, shifting to east after midnight. Gusts to
20 mph.
.MONDAY...Patchy smoke in the morning. Sunny, warmer with highs
86 to 91. Southeast winds up to 10 mph.
.MONDAY NIGHT...Increasing clouds. Warmer with lows 56 to 62.
East winds 10 to 15 mph with gusts to 25 mph.
.TUESDAY...Mostly sunny. Highs 86 to 91. Breezy. Southeast winds
10 to 20 mph with gusts to 30 mph.
.TUESDAY NIGHT...A slight chance of thunderstorms in the evening.
Partly cloudy with a slight chance of showers. Chance of rain
20 percent. Lows 54 to 60.
.WEDNESDAY...Partly cloudy. A slight chance of showers in the
morning. Chance of rain 20 percent. Highs 77 to 82.
.WEDNESDAY NIGHT...Mostly cloudy. Lows 49 to 56. Breezy.
.THURSDAY...Mostly sunny. Highs 75 to 81.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. Areas of fog through
the day. Lows 46 to 53. Highs 77 to 83.
.FRIDAY NIGHT...Increasing clouds. Patchy fog after midnight.
Lows 48 to 55.
.SATURDAY...Patchy fog in the morning. Mostly sunny. Highs 80 to
85.
&&
TEMPERATURE
Boise 77 51 89
Mountain Home 80 45 90
$$
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IDZ016-301600-
Western Magic Valley-
230 AM MDT Sun Aug 30 2026
.TODAY...Sunny. Highs 73 to 78. West winds 10 to 15 mph with
gusts to 30 mph.
.TONIGHT...Mostly clear. Lows 42 to 49. Southwest winds around
10 mph in the evening, shifting to southeast up to 10 mph after
midnight. Gusts to 20 mph.
.MONDAY...Partly cloudy. A slight chance of rain showers and
thunderstorms in the afternoon. Chance of rain 20 percent. Warmer
with highs 83 to 88. East winds around 10 mph.
.MONDAY NIGHT...Decreasing clouds. Warmer with lows 54 to 60.
Southeast winds 10 to 15 mph with gusts to 25 mph.
.TUESDAY...Mostly sunny. Highs 81 to 86. East winds 10 to 15 mph
with gusts to 30 mph.
.TUESDAY NIGHT...Partly cloudy. A chance of showers with a slight
chance of thunderstorms in the evening. Chance of rain
30 percent. Lows 53 to 58.
.WEDNESDAY THROUGH THURSDAY NIGHT...Partly cloudy. Highs 74 to
81. Lows 46 to 53.
.FRIDAY...Sunny. Highs 78 to 83.
.FRIDAY NIGHT AND SATURDAY...Partly cloudy. Lows 49 to 54. Highs
78 to 83.
&&
TEMPERATURE
Jerome 73 47 83
Twin Falls 73 49 83
$$
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IDZ029-301600-
Owyhee Mountains-
230 AM MDT Sun Aug 30 2026
.TODAY...Sunny. Highs 69 to 77.
.TONIGHT...Mostly clear. Lows 43 to 53.
.MONDAY...Sunny, warmer with highs 78 to 87.
.MONDAY NIGHT...Increasing clouds. Lows 54 to 62.
.TUESDAY...Mostly sunny. Highs 78 to 83.
.TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. Lows 49 to 58.
Highs 70 to 75. Breezy.
.WEDNESDAY NIGHT...Mostly cloudy. Lows 45 to 53.
.THURSDAY...Partly cloudy. A slight chance of rain showers in the
morning. Chance of rain 20 percent. Highs 67 to 74.
.THURSDAY NIGHT THROUGH SATURDAY...Partly cloudy. Lows 43 to 53.
Highs 69 to 79.
$$
=
IDZ015-301600-
Southwest Highlands-
230 AM MDT Sun Aug 30 2026
.TODAY...Sunny. Highs 73 to 78.
.TONIGHT...Mostly clear. Lows 43 to 49.
.MONDAY...Partly cloudy. A slight chance of rain showers and
thunderstorms in the afternoon. Chance of rain 20 percent. Highs
81 to 87.
.MONDAY NIGHT...Partly cloudy. Warmer with lows 52 to 58. Breezy.
.TUESDAY...Mostly sunny. Highs 79 to 85.
.TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. Lows 50 to 56.
Highs 70 to 77. Windy.
.WEDNESDAY NIGHT...Mostly cloudy. Lows 45 to 51. Breezy.
.THURSDAY THROUGH SATURDAY...Partly cloudy. Highs 73 to 82. Lows
44 to 51. Breezy.
$$
=
IDZ030-301600-
Southern Twin Falls County-
230 AM MDT Sun Aug 30 2026
.TODAY...Sunny. Highs 72 to 77.
.TONIGHT...Mostly clear. Lows 43 to 51.
.MONDAY...Partly cloudy with a chance of rain showers. A slight
chance of thunderstorms in the afternoon. Chance of rain
30 percent. Highs 81 to 86.
.MONDAY NIGHT...Mostly cloudy with a chance of showers with a
slight chance of thunderstorms in the evening, then partly cloudy
after midnight. Chance of rain 30 percent. Lows 53 to 58.
.TUESDAY...Mostly sunny. Highs 79 to 84. Breezy.
.TUESDAY NIGHT THROUGH THURSDAY NIGHT...Partly cloudy. Lows 47 to
57. Highs 72 to 80. Breezy.
.FRIDAY...Sunny. Highs 78 to 83.
.FRIDAY NIGHT AND SATURDAY...Partly cloudy. Lows 49 to 54. Highs
77 to 82.
$$
=
ORZ062-301600-
Baker County-
130 AM PDT Sun Aug 30 2026
.TODAY...Areas of fog this morning. Sunny. Highs 72 to 79. West
winds up to 10 mph.
.TONIGHT...Mostly clear. Lows 35 to 50. Northwest winds up to
10 mph in the evening, shifting to south after midnight.
.MONDAY...Sunny. Highs 80 to 89. Southeast winds up to 10 mph.
Gusts to 20 mph in the afternoon.
.MONDAY NIGHT...Partly cloudy. Not as cool with lows 45 to 58.
Southeast winds up to 10 mph. Gusts to 20 mph in the evening.
.TUESDAY...Partly sunny. Highs 78 to 86. Southeast winds 10 to
15 mph. Gusts to 25 mph in the afternoon.
.TUESDAY NIGHT...Mostly cloudy. A slight chance of rain showers
and thunderstorms in the evening, then a chance of rain showers
after midnight. Chance of rain 30 percent. Lows 44 to 56.
.WEDNESDAY...Areas of fog in the morning. Partly cloudy with a
chance of rain showers. A slight chance of thunderstorms in the
afternoon. Chance of rain 30 percent. Cooler with highs 68 to 76.
.WEDNESDAY NIGHT...Mostly cloudy. A chance of rain showers,
mainly after midnight. Areas of fog after midnight. Chance of
rain 40 percent. Lows 36 to 51.
.THURSDAY...Areas of fog in the morning. Rain showers likely. A
slight chance of thunderstorms in the afternoon. Chance of rain
60 percent. Highs 63 to 71.
.THURSDAY NIGHT...Mostly cloudy with a 30 percent chance of rain
showers. Patchy fog in the evening. Areas of fog after midnight.
Lows 34 to 48.
.FRIDAY...Areas of fog in the morning. Partly cloudy with a
30 percent chance of rain showers. Highs 68 to 76.
.FRIDAY NIGHT AND SATURDAY...Partly cloudy. A 20 percent chance
of rain showers. Areas of fog through the day. Lows 34 to 49.
Highs 71 to 80.
&&
TEMPERATURE
Baker City 76 35 85
$$
=
ORZ061-301600-
Harney County-
130 AM PDT Sun Aug 30 2026
.TODAY...Patchy fog this morning. Sunny. Highs 68 to 78. West
winds up to 10 mph.
.TONIGHT...Mostly clear. Lows 38 to 48. Northeast winds up to
10 mph.
.MONDAY...Sunny, warmer with highs 78 to 88. East winds up to
10 mph. Gusts to 25 mph in the afternoon.
.MONDAY NIGHT...Increasing clouds. Patchy smoke after midnight.
Lows 44 to 56. South winds 10 to 15 mph. Gusts to 25 mph in the
evening.
.TUESDAY...Mostly cloudy in the morning, then becoming mostly
sunny. Patchy smoke in the morning. Highs 75 to 83. Southwest
winds 10 to 15 mph. Gusts to 30 mph in the afternoon.
.TUESDAY NIGHT AND WEDNESDAY...Mostly cloudy. Not as warm. Lows
41 to 51. Highs 64 to 73. Breezy.
.WEDNESDAY NIGHT...Mostly cloudy with a 40 percent chance of rain
showers. Lows 35 to 46.
.THURSDAY...Partly cloudy with a chance of rain showers. A slight
chance of thunderstorms in the afternoon. Chance of rain
50 percent. Highs 60 to 70. Breezy.
.THURSDAY NIGHT...Decreasing clouds. A 30 percent chance of rain
showers. Patchy fog after midnight. Lows 32 to 44.
.FRIDAY...Mostly sunny. Areas of fog in the morning. A chance of
rain showers, mainly in the morning. Chance of rain 30 percent.
Highs 63 to 73.
.FRIDAY NIGHT...Partly cloudy. A slight chance of rain showers
after midnight. Chance of rain 20 percent. Lows 32 to 45.
.SATURDAY...Partly cloudy. A slight chance of rain showers in the
morning. Patchy fog in the morning. Chance of rain 20 percent.
Highs 66 to 76.
&&
TEMPERATURE
Burns 76 38 87
$$
=
ORZ063-301600-
Malheur County-
230 AM MDT Sun Aug 30 2026 /130 AM PDT Sun Aug 30 2026/
.TODAY...Sunny. Highs 75 to 80. West winds up to 10 mph.
.TONIGHT...Mostly clear. Lows 42 to 52. East winds up to 10 mph.
.MONDAY...Sunny, warmer with highs 82 to 90. East winds up to
10 mph.
.MONDAY NIGHT...Partly cloudy. Warmer with lows 52 to 59. East
winds 10 to 15 mph in the evening, shifting to south after
midnight. Gusts to 25 mph.
.TUESDAY...Partly sunny. Highs 81 to 87. Southwest winds 10 to
15 mph. Gusts to 25 mph in the afternoon.
.TUESDAY NIGHT...Increasing clouds. Lows 48 to 58.
.WEDNESDAY...Mostly sunny. Highs 72 to 78.
.WEDNESDAY NIGHT...Mostly cloudy. A chance of rain showers after
midnight. Chance of rain 30 percent. Lows 43 to 53.
.THURSDAY...Partly cloudy with a 40 percent chance of rain
showers. Highs 68 to 76.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. A 20 percent chance
of rain showers. Lows 41 to 50. Highs 72 to 78.
.FRIDAY NIGHT AND SATURDAY...Partly cloudy. Lows 42 to 52. Highs
75 to 81.
$$
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