Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS San Francisco Bay Area, CA
Issued by NWS San Francisco Bay Area, CA
881
FNUS56 KMTR 312043
FWFMTR
Fire Weather Planning Forecast for the San Francisco Bay Area and
Central California Coast
National Weather Service San Francisco Bay Area
143 PM PDT Mon Aug 31 2026
.DISCUSSION...Well below normal temperatures and a deep marine
layer are expected through Friday. Drizzle/light rain chances
return Tuesday and linger through Friday with the best chances in
the North Bay. Poor minimum daytime relative humidity in the
afternoons will continue across the Interior Central Coast with
overnight recovery improving through Friday.
Note : All winds are 20-foot Winds Unless otherwise specified.
Thunderstorms imply strong, gusty and erratic winds.
$$
CAZ505-010845-
Coastal North Bay...Including Point Reyes National Seashore-
143 PM PDT Mon Aug 31 2026
.TONIGHT...
* Sky/weather.........Mostly cloudy.
* Min temperature.....49-54.
* 24 hr trend......Little change.
* Max humidity........90 percent.
* 24 hr trend......10 percent drier.
* 20-foot winds.......West winds 10 to 15 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........2500 ft asl.
.TUESDAY...
* Sky/weather.........Partly sunny. Patchy fog in the morning.
Slight chance of rain in the morning.
* Max temperature.....57-65.
* 24 hr trend......Little change.
* Min humidity........70-80 percent.
* 24 hr trend......Little change.
* 20-foot winds.......Southwest winds 5 to 10 mph.
* Chance of Thunder...2 percent.
* CWR.................20%.
* Marine layer........3000 ft asl.
.TUESDAY NIGHT...
* Sky/weather.........Mostly cloudy. Patchy fog in the late evening
and overnight. Slight chance of rain after midnight. Chance of
rain early in the morning.
* Min temperature.....50-55.
* Max humidity........100 percent.
* 20-foot winds.......Southwest winds 5 to 10 mph.
* CWR.................20%.
.WEDNESDAY...
* Sky/weather.........Partly sunny. Patchy fog early in the
morning. Chance of rain through the day.
* Max temperature.....58-66.
* Min humidity........90-100 percent.
* 20-foot winds.......South winds 5 to 10 mph.
* CWR.................10%.
.EXTENDED...
.WEDNESDAY NIGHT...Partly cloudy in the evening then becoming
mostly cloudy. Patchy fog. Chance of rain. Southwest winds 5 to
15 mph. Lows in the 50s.
.THURSDAY...Mostly cloudy. Chance of rain. Southwest winds 5 to
15 mph. Lows in the 50s. Highs in the upper 50s to mid 60s.
.FRIDAY...Partly cloudy. Slight chance of drizzle. Northwest
winds 5 to 15 mph. Lows in the 40s to upper 50s. Highs in the
60s.
.SATURDAY...Partly cloudy. Northwest winds 5 to 15 mph. Lows in
the 40s to upper 50s. Highs in the 60s.
$$
CAZ503-010845-
Sonoma Coastal Range-
143 PM PDT Mon Aug 31 2026
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....49-54.
* 24 hr trend......Little change.
* Max humidity........90 percent.
* 24 hr trend......10 percent drier.
* 20-foot winds.......
* Ridges/upr slopes....West winds 5 to 10 mph. Gusts up to 20 mph
in the evening.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........2500 ft asl.
.TUESDAY...
* Sky/weather.........Partly sunny. Patchy fog in the morning.
Slight chance of rain through the day.
* Max temperature.....65-73.
* 24 hr trend......9 degrees cooler.
* Min humidity........55-65 percent.
* 24 hr trend......20 percent wetter.
* 20-foot winds.......
* Ridges/upr slopes....Southwest winds 5 to 10 mph. Gusts up to 20
mph in the afternoon.
* Chance of Thunder...2 percent.
* CWR.................10%.
* Marine layer........3000 ft asl.
.TUESDAY NIGHT...
* Sky/weather.........Mostly cloudy. Patchy fog late in the
evening. Chance of rain early in the morning.
* Min temperature.....49-54.
* Max humidity........100 percent.
* 20-foot winds.......
* Ridges/upr slopes....West winds 5 to 10 mph shifting to the south
up to 5 mph after midnight.
* CWR.................20%.
.WEDNESDAY...
* Sky/weather.........Mostly cloudy. Patchy fog in the morning.
Chance of rain through the day.
* Max temperature.....65-73.
* Min humidity........75-85 percent.
* 20-foot winds.......
* Ridges/upr slopes....South winds 5 to 10 mph.
* CWR.................10%.
.EXTENDED...
.WEDNESDAY NIGHT...Partly cloudy in the evening then becoming
mostly cloudy. Patchy fog. Chance of rain. Southwest winds 5 to
15 mph. Lows in the 50s.
.THURSDAY...Mostly cloudy. Patchy fog. Rain. Southwest winds 5 to
15 mph. Lows in the 40s to upper 50s. Highs in the mid 60s to
lower 70s.
.FRIDAY...Mostly clear. Northwest winds 5 to 15 mph. Lows in the
upper 40s to mid 50s. Highs in the mid 60s to lower 70s.
.SATURDAY...Mostly clear. Northwest winds 5 to 15 mph. Lows in
the upper 40s to mid 50s. Highs in the upper 60s to mid 70s.
$$
CAZ502-010845-
Marin Coastal Range-
143 PM PDT Mon Aug 31 2026
.TONIGHT...
* Sky/weather.........Mostly cloudy.
* Min temperature.....50-55 except 58-63 above 2000 feet.
* 24 hr trend......Little change.
* Max humidity........90 percent except 50-70 percent above 2000
feet.
* 24 hr trend......10 percent wetter.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 10 to 15 mph.
* Ridges/upr slopes....West winds 10 to 15 mph and gusty.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........2500 ft asl.
.TUESDAY...
* Sky/weather.........Partly sunny. Slight chance of rain in the
morning.
* Max temperature.....64-72.
* 24 hr trend......Little change.
* Min humidity........70 percent except 50 percent above 2000 feet.
* 24 hr trend......10 percent wetter.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 5 to 10 mph.
* Ridges/upr slopes....Southwest winds 5 to 10 mph. Gusts up to 20
mph in the afternoon.
* Chance of Thunder...2 percent.
* CWR.................10%.
* Marine layer........3000 ft asl.
.TUESDAY NIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
Patchy fog after midnight. Slight chance of rain early in the
morning.
* Min temperature.....50-55 except 58-63 above 2000 feet.
* Max humidity........90-100 percent except 70-80 percent above
2000 feet.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 5 to 10 mph.
* Ridges/upr slopes....Southwest winds 5 to 10 mph. Gusts up to 20
mph in the evening.
* CWR.................10%.
.WEDNESDAY...
* Sky/weather.........Mostly cloudy then becoming mostly sunny.
Patchy fog early in the morning. Chance of rain through the day.
* Max temperature.....65-73.
* Min humidity........75-85 percent except 40-50 percent above 2000
feet.
* 20-foot winds.......
* Valleys/lwr slopes...South winds 5 to 10 mph.
* Ridges/upr slopes....South winds 5 to 10 mph. Gusts up to 20 mph
in the afternoon.
* CWR.................10%.
.EXTENDED...
.WEDNESDAY NIGHT...Partly cloudy. Patchy fog. Southwest winds
5 to 15 mph. Lows in the 50s to mid 60s.
.THURSDAY...Mostly cloudy. Rain likely. Southwest winds 5 to
15 mph. Lows in the 50s to lower 60s. Highs in the mid 60s to
lower 70s.
.FRIDAY...Partly cloudy. West winds 5 to 15 mph. Lows in the 50s
to lower 60s. Highs in the upper 60s to mid 70s.
.SATURDAY...Mostly clear. West winds 5 to 15 mph. Lows in the 50s
to lower 60s. Highs in the upper 60s to mid 70s.
$$
CAZ506-010845-
North Bay Interior Valleys-
143 PM PDT Mon Aug 31 2026
.TONIGHT...
* Sky/weather.........Mostly cloudy.
* Min temperature.....50-55.
* 24 hr trend......Little change.
* Max humidity........90 percent.
* 24 hr trend......10 percent drier.
* 20-foot winds.......West winds 10 to 15 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........2500 ft asl.
.TUESDAY...
* Sky/weather.........Partly sunny. Slight chance of rain in the
morning.
* Max temperature.....67-75.
* 24 hr trend......9 degrees cooler.
* Min humidity........45-55 percent.
* 24 hr trend......10 percent drier.
* 20-foot winds.......Southwest winds 5 to 10 mph.
* Chance of Thunder...2 percent.
* CWR.................10%.
* Marine layer........3000 ft asl.
.TUESDAY NIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
Patchy fog after midnight. Slight chance of rain after midnight.
Chance of rain early in the morning.
* Min temperature.....50-55.
* Max humidity........100 percent.
* 20-foot winds.......Southwest winds 5 to 10 mph.
* CWR.................10%.
.WEDNESDAY...
* Sky/weather.........Mostly cloudy then becoming mostly sunny.
Patchy fog in the morning. Chance of rain through the day.
* Max temperature.....68-76.
* Min humidity........75-85 percent.
* 20-foot winds.......South winds 5 to 10 mph.
* CWR.................10%.
.EXTENDED...
.WEDNESDAY NIGHT...Partly cloudy in the evening then becoming
mostly cloudy. Patchy fog. Chance of rain. Southwest winds 5 to
15 mph. Lows in the 40s to upper 50s.
.THURSDAY...Mostly cloudy. Patchy fog. Chance of rain. Southwest
winds 5 to 15 mph. Lows in the 40s to upper 50s. Highs in the
upper 60s to mid 70s.
.FRIDAY...Partly cloudy. Patchy fog. West winds 5 to 15 mph. Lows
in the 40s to upper 50s. Highs in the upper 60s to mid 70s.
.SATURDAY...Mostly clear. Patchy fog. West winds 5 to 15 mph.
Lows in the 40s to mid 50s. Highs in the upper 60s to mid 70s.
$$
CAZ504-010845-
North Bay Interior Mountains-
143 PM PDT Mon Aug 31 2026
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....49-56.
* 24 hr trend......Little change.
* Max humidity........70-90 percent.
* 24 hr trend......30 percent wetter.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 10 to 15 mph.
* Ridges/upr slopes....West winds 10 to 15 mph with gusts to around
30 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........2500 ft asl.
.TUESDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....64-72.
* 24 hr trend......Little change.
* Min humidity........40-50 percent.
* 24 hr trend......20 percent wetter.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 10 to 15 mph and gusts to
around 20 mph.
* Ridges/upr slopes....Southwest winds 10 to 15 mph with gusts to
around 30 mph.
* Chance of Thunder...1 percent.
* CWR.................10%.
* Marine layer........3000 ft asl.
.TUESDAY NIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
Slight chance of rain after midnight. Chance of rain early in the
morning. Patchy fog early in the morning.
* Min temperature.....49-56.
* Max humidity........80-100 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 5 to 10 mph. Gusts up to 25
mph in the evening.
* Ridges/upr slopes....Southwest winds 5 to 10 mph. Gusts up to 40
mph decreasing to 25 mph after midnight.
* CWR.................10%.
.WEDNESDAY...
* Sky/weather.........Partly sunny. Patchy fog early in the
morning. Chance of rain through the day.
* Max temperature.....65-73.
* Min humidity........65-75 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 5 to 10 mph. Gusts up to 20
mph in the afternoon.
* Ridges/upr slopes....Southwest winds 5 to 10 mph. Gusts up to 25
mph in the afternoon.
* CWR.................10%.
.EXTENDED...
.WEDNESDAY NIGHT...Mostly clear in the evening then becoming
partly cloudy. Chance of rain. Southwest winds 5 to 15 mph. Lows
in the 40s to upper 50s.
.THURSDAY...Mostly cloudy. Chance of rain. Southwest winds 5 to
15 mph. Lows in the 40s to upper 50s. Highs in the mid 60s to
lower 70s.
.FRIDAY...Mostly clear. West winds 5 to 15 mph. Lows in the 40s
to upper 50s. Highs in the upper 60s to mid 70s.
.SATURDAY...Mostly clear. West winds 5 to 15 mph. Lows in the 40s
to upper 50s. Highs in the 60s to upper 70s.
$$
CAZ006-010845-
San Francisco-
143 PM PDT Mon Aug 31 2026
.TONIGHT...
* Sky/weather.........Mostly cloudy.
* Min temperature.....53-58.
* 24 hr trend......Little change.
* Max humidity........90 percent.
* 24 hr trend......Little change.
* 20-foot winds.......West winds 10 to 20 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........2500 ft asl.
.TUESDAY...
* Sky/weather.........Partly sunny.
* Max temperature.....61-68.
* 24 hr trend......4 degrees warmer.
* Min humidity........60-70 percent.
* 24 hr trend......10 percent drier.
* 20-foot winds.......Southwest winds 10 to 15 mph.
* Chance of Thunder...2 percent.
* CWR.................0%.
* Marine layer........3000 ft asl.
.TUESDAY NIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
* Min temperature.....53-58.
* Max humidity........90-100 percent.
* 20-foot winds.......Southwest winds 5 to 10 mph.
* CWR.................0%.
.WEDNESDAY...
* Sky/weather.........Mostly cloudy then becoming mostly sunny.
* Max temperature.....63-70.
* Min humidity........85-95 percent.
* 20-foot winds.......South winds 5 to 10 mph.
* CWR.................0%.
.EXTENDED...
.WEDNESDAY NIGHT...Partly cloudy in the evening then becoming
mostly cloudy. Southwest winds 5 to 15 mph. Lows in the upper
50s.
.THURSDAY...Mostly cloudy. Chance of rain. Southwest winds 10 to
20 mph. Lows in the upper 50s. Highs in the 60s to lower 70s.
.FRIDAY...Partly cloudy. West winds 10 to 20 mph. Lows in the
upper 50s. Highs in the 60s.
.SATURDAY...Partly cloudy. West winds 10 to 20 mph. Lows in the
upper 50s. Highs in the 60s.
$$
CAZ509-010845-
San Francisco Peninsula Coast-
143 PM PDT Mon Aug 31 2026
.TONIGHT...
* Sky/weather.........Mostly cloudy. Patchy fog after midnight.
* Min temperature.....50-55.
* 24 hr trend......Little change.
* Max humidity........90 percent.
* 24 hr trend......Little change.
* 20-foot winds.......West winds 5 to 10 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........2500 ft asl.
.TUESDAY...
* Sky/weather.........Mostly cloudy then becoming mostly sunny.
Patchy fog in the morning.
* Max temperature.....60-68.
* 24 hr trend......Little change.
* Min humidity........60-70 percent.
* 24 hr trend......Little change.
* 20-foot winds.......Southwest winds 5 to 10 mph.
* Chance of Thunder...2 percent.
* CWR.................0%.
* Marine layer........3000 ft asl.
.TUESDAY NIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
Patchy fog in the late evening and overnight.
* Min temperature.....51-56.
* Max humidity........90-100 percent.
* 20-foot winds.......Southwest winds 5 to 10 mph shifting to the
south 5 to 10 mph after midnight.
* CWR.................0%.
.WEDNESDAY...
* Sky/weather.........Mostly sunny. Patchy fog early in the
morning.
* Max temperature.....63-71.
* Min humidity........80-90 percent.
* 20-foot winds.......South winds 5 to 10 mph.
* CWR.................0%.
.EXTENDED...
.WEDNESDAY NIGHT...Partly cloudy in the evening then becoming
mostly cloudy. Areas of fog. West winds 5 to 15 mph. Lows in the
50s.
.THURSDAY...Mostly cloudy. Areas of fog. Patchy fog. Slight
chance of rain. West winds 5 to 15 mph. Lows in the 50s. Highs in
the 60s to lower 70s.
.FRIDAY...Partly cloudy. Patchy fog. Northwest winds 10 to
20 mph. Lows in the 50s. Highs in the 60s to lower 70s.
.SATURDAY...Partly cloudy. Northwest winds 10 to 20 mph. Lows in
the lower to mid 50s. Highs in the 60s to lower 70s.
$$
CAZ508-010845-
San Francisco Bay Shoreline-
143 PM PDT Mon Aug 31 2026
.TONIGHT...
* Sky/weather.........Mostly cloudy.
* Min temperature.....53-58.
* 24 hr trend......Little change.
* Max humidity........90 percent.
* 24 hr trend......Little change.
* 20-foot winds.......West winds 10 to 15 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........2500 ft asl.
.TUESDAY...
* Sky/weather.........Mostly cloudy then becoming mostly sunny.
* Max temperature.....65-73.
* 24 hr trend......Little change.
* Min humidity........50-60 percent.
* 24 hr trend......Little change.
* 20-foot winds.......Southwest winds 5 to 10 mph.
* Chance of Thunder...2 percent.
* CWR.................0%.
* Marine layer........3000 ft asl.
.TUESDAY NIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
Patchy fog after midnight.
* Min temperature.....52-57.
* Max humidity........90-100 percent.
* 20-foot winds.......West winds 10 to 15 mph becoming southwest up
to 5 mph after midnight.
* CWR.................0%.
.WEDNESDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....68-76.
* Min humidity........70-80 percent.
* 20-foot winds.......South winds 5 to 10 mph shifting to the
southwest 10 to 15 mph in the afternoon.
* CWR.................0%.
.EXTENDED...
.WEDNESDAY NIGHT...Mostly clear in the evening then becoming
partly cloudy. Patchy fog. West winds 10 to 20 mph. Lows in the
mid to upper 50s.
.THURSDAY...Partly cloudy. Slight chance of rain. Southwest winds
10 to 20 mph. Lows in the mid to upper 50s. Highs in the mid 60s
to lower 70s.
.FRIDAY...Partly cloudy. West winds 10 to 20 mph. Lows in the
50s. Highs in the mid 60s to lower 70s.
.SATURDAY...Partly cloudy. West winds 10 to 20 mph. Lows in the
50s. Highs in the mid 60s to lower 70s.
$$
CAZ510-010845-
East Bay Interior Valleys-
143 PM PDT Mon Aug 31 2026
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....54-59.
* 24 hr trend......Little change.
* Max humidity........80-90 percent.
* 24 hr trend......10 percent drier.
* 20-foot winds.......Breezy. Southwest winds 15 to 25 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........2500 ft asl.
.TUESDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....71-79.
* 24 hr trend......Little change.
* Min humidity........45-55 percent.
* 24 hr trend......Little change.
* 20-foot winds.......Southwest winds 10 to 20 mph.
* Chance of Thunder...1 percent.
* CWR.................0%.
* Marine layer........3000 ft asl.
.TUESDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....52-58.
* Max humidity........80-100 percent.
* 20-foot winds.......Southwest winds 5 to 10 mph.
* CWR.................0%.
.WEDNESDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....74-82.
* Min humidity........55-65 percent.
* 20-foot winds.......Southwest winds 5 to 10 mph.
* CWR.................0%.
.EXTENDED...
.WEDNESDAY NIGHT...Mostly clear. West winds 10 to 20 mph. Lows in
the 50s to lower 60s.
.THURSDAY...Partly cloudy. Slight chance of rain. Southwest winds
10 to 20 mph. Lows in the 50s to lower 60s. Highs in the 70s.
.FRIDAY...Mostly clear. Southwest winds 10 to 20 mph. Lows in the
50s to lower 60s. Highs in the 70s to lower 80s.
.SATURDAY...Mostly clear. West winds 5 to 15 mph. Lows in the 50s
to lower 60s. Highs in the 70s to lower 80s.
$$
CAZ513-010845-
Santa Clara Valley...including San Jose-
143 PM PDT Mon Aug 31 2026
.TONIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
* Min temperature.....53-58.
* 24 hr trend......Little change.
* Max humidity........90 percent.
* 24 hr trend......Little change.
* 20-foot winds.......Northwest winds 10 to 15 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........2500 ft asl.
.TUESDAY...
* Sky/weather.........Mostly sunny. Patchy fog in the morning.
* Max temperature.....70-77.
* 24 hr trend......Little change.
* Min humidity........40-50 percent.
* 24 hr trend......Little change.
* 20-foot winds.......South winds up to 5 mph shifting to the west
10 to 15 mph in the afternoon.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........3000 ft asl.
.TUESDAY NIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
Patchy fog early in the morning.
* Min temperature.....50-55.
* Max humidity........90-100 percent.
* 20-foot winds.......West winds 10 to 15 mph decreasing to up to 5
mph after midnight.
* CWR.................0%.
.WEDNESDAY...
* Sky/weather.........Mostly cloudy then becoming sunny. Patchy fog
early in the morning.
* Max temperature.....74-80.
* Min humidity........55-65 percent.
* 20-foot winds.......Southeast winds up to 5 mph shifting to the
west 5 to 10 mph in the afternoon.
* CWR.................0%.
.EXTENDED...
.WEDNESDAY NIGHT...Mostly clear in the evening then becoming
partly cloudy. West winds 10 to 20 mph. Lows in the 50s.
.THURSDAY...Partly cloudy. Patchy fog. West winds 5 to 15 mph.
Lows in the 50s. Highs in the 70s to lower 80s.
.FRIDAY...Partly cloudy. Patchy fog. West winds 10 to 20 mph.
Lows in the 50s. Highs in the 70s to lower 80s.
.SATURDAY...Mostly clear. Patchy fog. West winds 5 to 15 mph.
Lows in the 50s. Highs in the 70s to lower 80s.
$$
CAZ512-010845-
Santa Cruz Mountains-
143 PM PDT Mon Aug 31 2026
.TONIGHT...
* Sky/weather.........Mostly cloudy. Patchy fog after midnight.
* Min temperature.....51-58.
* 24 hr trend......Little change.
* Max humidity........58-78 percent except 53-63 percent above 2000
feet.
* 24 hr trend......20 percent wetter.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 5 to 10 mph.
* Ridges/upr slopes....West winds 5 to 10 mph. Gusts up to 30 mph
in the evening.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........2500 ft asl.
.TUESDAY...
* Sky/weather.........Mostly sunny. Patchy fog in the morning.
* Max temperature.....67-75.
* 24 hr trend......Little change.
* Min humidity........45-55 percent.
* 24 hr trend......Little change.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 5 to 10 mph.
* Ridges/upr slopes....Southwest winds 5 to 10 mph. Gusts up to 30
mph in the afternoon.
* Chance of Thunder...1 percent.
* CWR.................0%.
* Marine layer........3000 ft asl.
.TUESDAY NIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
Patchy fog late in the evening. Areas of fog after midnight.
* Min temperature.....50-56.
* Max humidity........63-83 percent except 53-63 percent above 2000
feet.
* 20-foot winds.......
* Valleys/lwr slopes...West winds up to 5 mph in the evening
becoming downvalley 2 to 6 mph.
* Ridges/upr slopes....Southwest winds 5 to 10 mph. Gusts up to 30
mph in the evening.
* CWR.................0%.
.WEDNESDAY...
* Sky/weather.........Mostly sunny. Areas of fog early in the
morning. Patchy fog late in the morning.
* Max temperature.....69-77.
* Min humidity........55-65 percent except 45-55 percent above 2000
feet.
* 20-foot winds.......
* Valleys/lwr slopes...South winds up to 5 mph shifting to the
southwest in the afternoon.
* Ridges/upr slopes....Southeast winds up to 5 mph shifting to the
southwest 5 to 10 mph with gusts 20 to 30 mph in the
afternoon.
* CWR.................0%.
.EXTENDED...
.WEDNESDAY NIGHT...Mostly clear in the evening then becoming
partly cloudy. Areas of fog. West winds 5 to 15 mph. Lows in the
50s to lower 60s.
.THURSDAY...Partly cloudy. West winds 5 to 15 mph. Lows in the
50s to lower 60s. Highs in the upper 60s to mid 70s.
.FRIDAY...Partly cloudy. Northwest winds 5 to 15 mph. Lows in the
50s to lower 60s. Highs in the upper 60s to mid 70s.
.SATURDAY...Mostly clear. Northwest winds 5 to 15 mph. Lows in
the 50s to lower 60s. Highs in the upper 60s to mid 70s.
$$
CAZ515-010845-
East Bay Hills-
143 PM PDT Mon Aug 31 2026
.TONIGHT...
* Sky/weather.........Mostly cloudy.
* Min temperature.....52-60 except 45-55 above 2000 feet.
* 24 hr trend......Little change.
* Max humidity........60-80 percent.
* 24 hr trend......10 percent wetter.
* 20-foot winds.......
* Valleys/lwr slopes...Breezy. Southwest winds 15 to 25 mph with
gusts to around 40 mph.
* Ridges/upr slopes....Breezy. Southwest winds 15 to 25 mph with
gusts to around 45 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........2500 ft asl.
.TUESDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....68-76.
* 24 hr trend......4 degrees cooler.
* Min humidity........45-55 percent.
* 24 hr trend......Little change.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 10 to 20 mph with gusts to
around 35 mph.
* Ridges/upr slopes....Southwest winds 10 to 20 mph with gusts to
around 35 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........3000 ft asl.
.TUESDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....52-59 except 45-55 above 2000 feet.
* Max humidity........65-85 percent except 53-73 percent above 2000
feet.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 10 to 20 mph with gusts to around
30 mph shifting to the southwest 5 to 10 mph after midnight.
* Ridges/upr slopes....Southwest winds 10 to 15 mph. Gusts up to 35
mph decreasing to 25 mph after midnight.
* CWR.................0%.
.WEDNESDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....72-80.
* Min humidity........60-70 percent except 45-55 percent above 2000
feet.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 5 to 10 mph with gusts 20 to
30 mph.
* Ridges/upr slopes....Southwest winds 5 to 10 mph with gusts 20 to
30 mph.
* CWR.................0%.
.EXTENDED...
.WEDNESDAY NIGHT...Mostly clear. West winds 10 to 20 mph. Lows in
the 50s to lower 60s.
.THURSDAY...Partly cloudy. Slight chance of rain. Southwest winds
10 to 20 mph. Lows in the 50s to lower 60s. Highs in the 70s.
.FRIDAY...Mostly clear. West winds 10 to 20 mph. Lows in the 50s
to lower 60s. Highs in the 70s.
.SATURDAY...Mostly clear. West winds 5 to 15 mph. Lows in the 40s
to upper 50s. Highs in the 70s to lower 80s.
$$
CAZ514-010845-
Eastern Santa Clara Hills-
143 PM PDT Mon Aug 31 2026
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....43-53.
* 24 hr trend......Little change.
* Max humidity........65-85 percent.
* 24 hr trend......40 percent wetter.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 5 to 10 mph.
* Ridges/upr slopes....West winds 5 to 15 mph with gusts to 20 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........2500 ft asl.
.TUESDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....68-76.
* 24 hr trend......Little change.
* Min humidity........30 percent except 40 percent above 2000 feet.
* 24 hr trend......10 percent drier.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 10 to 15 mph.
* Ridges/upr slopes....Southwest winds 10 to 15 mph with gusts to
around 30 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........3000 ft asl.
.TUESDAY NIGHT...
* Sky/weather.........Partly cloudy. Patchy fog early in the
morning. Areas of fog early in the morning.
* Min temperature.....44-53.
* Max humidity........70-90 percent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 5 to 10 mph in the evening
becoming downvalley 2 to 6 mph.
* Ridges/upr slopes....West winds 5 to 10 mph. Gusts up to 25 mph
in the evening.
* CWR.................0%.
.WEDNESDAY...
* Sky/weather.........Partly sunny then becoming sunny. Areas of
fog early in the morning. Patchy fog early in the morning.
* Max temperature.....71-79.
* Min humidity........45-55 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upvalley 3 to 7 mph becoming southwest 5 to
10 mph in the afternoon.
* Ridges/upr slopes....Southwest winds 5 to 10 mph. Gusts up to 20
mph in the afternoon.
* CWR.................0%.
.EXTENDED...
.WEDNESDAY NIGHT...Mostly clear. West winds 10 to 20 mph. Lows in
the 40s to upper 50s.
.THURSDAY...Mostly clear. Slight chance of rain. West winds 5 to
15 mph. Lows in the 40s to upper 50s. Highs in the 70s.
.FRIDAY...Mostly clear. Slight chance of drizzle. West winds 5 to
15 mph. Lows in the 40s to upper 50s. Highs in the 70s.
.SATURDAY...Mostly clear. West winds 5 to 15 mph. Lows in the 40s
to upper 50s. Highs in the 70s to lower 80s.
$$
CAZ529-010845-
Northern Monterey Bay-
143 PM PDT Mon Aug 31 2026
.TONIGHT...
* Sky/weather.........Mostly cloudy. Patchy fog after midnight.
* Min temperature.....50-55.
* 24 hr trend......Little change.
* Max humidity........90 percent.
* 24 hr trend......10 percent drier.
* 20-foot winds.......West winds 5 to 10 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........2500 ft asl.
.TUESDAY...
* Sky/weather.........Mostly cloudy then becoming mostly sunny.
Patchy fog in the morning.
* Max temperature.....63-71.
* 24 hr trend......Little change.
* Min humidity........50-60 percent except 60-70 percent from 500
to 1000 feet.
* 24 hr trend......Little change.
* 20-foot winds.......Southwest winds 5 to 10 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........3000 ft asl.
.TUESDAY NIGHT...
* Sky/weather.........Mostly cloudy. Patchy fog late in the
evening.
* Min temperature.....49-54.
* Max humidity........100 percent.
* 20-foot winds.......West winds 5 to 10 mph shifting to the north
up to 5 mph after midnight.
* CWR.................0%.
.WEDNESDAY...
* Sky/weather.........Mostly cloudy then becoming mostly sunny.
Patchy fog in the morning.
* Max temperature.....65-73.
* Min humidity........75-85 percent.
* 20-foot winds.......East winds up to 5 mph shifting to the
southwest 5 to 10 mph in the afternoon.
* CWR.................0%.
.EXTENDED...
.WEDNESDAY NIGHT...Mostly clear in the evening then becoming
mostly cloudy. Patchy fog. West winds 5 to 15 mph. Lows in the
mid 50s.
.THURSDAY...Partly cloudy. Patchy fog. West winds 5 to 15 mph.
Lows in the mid 50s. Highs in the mid 60s to lower 70s.
.FRIDAY...Partly cloudy. Patchy fog. Slight chance of rain.
Northwest winds 5 to 15 mph. Lows in the 50s. Highs in the mid
60s to lower 70s.
.SATURDAY...Mostly clear. Patchy fog. Northwest winds 5 to
15 mph. Lows in the mid 50s. Highs in the mid 60s to lower 70s.
$$
CAZ530-010845-
Southern Monterey Bay and Big Sur Coast-
143 PM PDT Mon Aug 31 2026
.TONIGHT...
* Sky/weather.........Mostly cloudy. Smoke in the evening.
* Min temperature.....50-55 except Big Sur 42-47.
* 24 hr trend......Little change.
* Max humidity........90 percent.
* 24 hr trend......10 percent drier.
* 20-foot winds.......West winds 10 to 15 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........2500 ft asl.
.TUESDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....60-68.
* 24 hr trend......Little change.
* Min humidity........50 percent except Big Sur 60 percent.
* 24 hr trend......10 percent drier.
* 20-foot winds.......West winds 5 to 10 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........3000 ft asl.
.TUESDAY NIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
Patchy smoke early in the evening. Patchy fog early in the
morning.
* Min temperature.....48-53 except Big Sur 42-47.
* Max humidity........100 percent.
* 20-foot winds.......West winds 10 to 15 mph shifting to the south
up to 5 mph after midnight.
* CWR.................0%.
.WEDNESDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....63-71.
* Min humidity........75-85 percent.
* 20-foot winds.......East winds up to 5 mph shifting to the west 5
to 10 mph in the afternoon.
* CWR.................0%.
.EXTENDED...
.WEDNESDAY NIGHT...Partly cloudy in the evening then becoming
mostly cloudy. West winds 5 to 15 mph. Lows in the 40s to upper
50s.
.THURSDAY...Mostly cloudy. Patchy fog. West winds 5 to 15 mph.
Lows in the 40s to upper 50s. Highs in the 60s to lower 70s.
.FRIDAY...Partly cloudy. Northwest winds 10 to 20 mph. Lows in
the 50s. Highs in the 60s to lower 70s.
.SATURDAY...Partly cloudy. Northwest winds 10 to 20 mph. Lows in
the 50s. Highs in the 60s to lower 70s.
$$
CAZ528-010845-
Northern Salinas Valley...Hollister Valley...and Carmel Valley-
143 PM PDT Mon Aug 31 2026
.TONIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
* Min temperature.....49-54.
* 24 hr trend......Little change.
* Max humidity........80-90 percent.
* 24 hr trend......10 percent drier.
* 20-foot winds.......Breezy. West winds 15 to 25 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........2500 ft asl.
.TUESDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....65-73.
* 24 hr trend......Little change.
* Min humidity........40-50 percent.
* 24 hr trend......10 percent wetter.
* 20-foot winds.......Southwest winds 5 to 10 mph increasing to
west 15 to 25 mph in the afternoon.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........3000 ft asl.
.TUESDAY NIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
Patchy fog early in the morning.
* Min temperature.....47-52.
* Max humidity........100 percent.
* 20-foot winds.......West winds 10 to 20 mph decreasing to 5 to 10
mph after midnight.
* CWR.................0%.
.WEDNESDAY...
* Sky/weather.........Partly sunny then becoming sunny. Areas of
fog early in the morning. Patchy fog late in the morning.
* Max temperature.....69-77.
* Min humidity........60-70 percent.
* 20-foot winds.......South winds up to 5 mph increasing to west 10
to 15 mph in the afternoon.
* CWR.................0%.
.EXTENDED...
.WEDNESDAY NIGHT...Mostly clear in the evening then becoming
mostly cloudy. West winds 10 to 20 mph. Lows in the 50s.
.THURSDAY...Partly cloudy. Patchy fog. West winds 10 to 20 mph.
Lows in the 50s. Highs in the upper 60s to mid 70s.
.FRIDAY...Partly cloudy. Patchy fog. West winds 10 to 20 mph.
Lows in the 40s to upper 50s. Highs in the upper 60s to mid 70s.
.SATURDAY...Partly cloudy. Patchy fog. West winds 10 to 20 mph.
Lows in the upper 40s to mid 50s. Highs in the 60s to upper 70s.
$$
CAZ516-010845-
Southern Salinas Valley...Arroyo Seco...and Lake San Antonio-
143 PM PDT Mon Aug 31 2026
.TONIGHT...
* Sky/weather.........Partly cloudy. Patchy smoke through the
night. Patchy fog after midnight.
* Min temperature.....45-50.
* 24 hr trend......Little change.
* Max humidity........80-90 percent.
* 24 hr trend......10 percent drier.
* 20-foot winds.......Northwest winds 10 to 15 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........2500 ft asl.
.TUESDAY...
* Sky/weather.........Partly sunny then becoming sunny. Patchy fog
and smoke in the morning. Areas of smoke in the afternoon.
* Max temperature.....70-78.
* 24 hr trend......Little change.
* Min humidity........30-40 percent.
* 24 hr trend......Little change.
* 20-foot winds.......North winds up to 5 mph increasing to west 10
to 15 mph in the afternoon.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........3000 ft asl.
.TUESDAY NIGHT...
* Sky/weather.........Mostly clear then becoming mostly cloudy.
Smoke. Patchy fog early in the morning. Areas of smoke early in
the morning.
* Min temperature.....42-47.
* Max humidity........100 percent.
* 20-foot winds.......Northwest winds 10 to 20 mph decreasing to 5
to 10 mph after midnight.
* CWR.................0%.
.WEDNESDAY...
* Sky/weather.........Partly sunny then becoming sunny. Areas of
smoke early in the morning. Patchy fog early in the morning.
* Max temperature.....74-82.
* Min humidity........45-55 percent.
* 20-foot winds.......Northwest winds 5 to 10 mph.
* CWR.................0%.
.EXTENDED...
.WEDNESDAY NIGHT...Mostly clear. Northwest winds 10 to 20 mph.
Lows in the 40s to mid 50s.
.THURSDAY...Mostly clear. Northwest winds 10 to 20 mph. Lows in
the 40s to mid 50s. Highs in the mid 70s to lower 80s.
.FRIDAY...Partly cloudy. Northwest winds 10 to 20 mph. Lows in
the 40s to mid 50s. Highs in the mid 70s to lower 80s.
.SATURDAY...Mostly clear. Northwest winds 10 to 20 mph. Lows in
the mid 40s to lower 50s. Highs in the mid 70s to lower 80s.
$$
CAZ517-010845-
Santa Lucia Mountains and Los Padres National Forest-
143 PM PDT Mon Aug 31 2026
.TONIGHT...
* Sky/weather.........Partly cloudy. Smoke.
* Min temperature.....46-55.
* 24 hr trend......Little change.
* Max humidity........60-80 percent except 45-55 percent above 2000
feet.
* 24 hr trend......10 percent wetter.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 5 to 10 mph.
* Ridges/upr slopes....Northwest winds around 5 to 10 mph with
gusts to 15 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........2500 ft asl.
.TUESDAY...
* Sky/weather.........Mostly sunny. Patchy fog in the morning.
Smoke through the day.
* Max temperature.....69-77.
* 24 hr trend......6 degrees cooler.
* Min humidity........35-45 percent.
* 24 hr trend......Little change.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 5 to 10 mph. Gusts up to 20 mph
in the afternoon.
* Ridges/upr slopes....West winds 5 to 10 mph. Gusts up to 25 mph
in the afternoon.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........3000 ft asl.
.TUESDAY NIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
Smoke.
* Min temperature.....41-51 except 51-57 above 2000 feet.
* Max humidity........65-85 percent except 45-55 percent above 2000
feet.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 5 to 10 mph. Gusts up to 20
mph in the evening.
* Ridges/upr slopes....Northwest winds 5 to 10 mph. Gusts up to 30
mph decreasing to 20 mph after midnight.
* CWR.................0%.
.WEDNESDAY...
* Sky/weather.........Partly sunny then becoming sunny. Areas of
smoke early in the morning. Patchy fog early in the morning.
* Max temperature.....72-80.
* Min humidity........40-50 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 5 to 10 mph.
* Ridges/upr slopes....Northwest winds 5 to 10 mph. Gusts up to 20
mph in the afternoon.
* CWR.................0%.
.EXTENDED...
.WEDNESDAY NIGHT...Mostly clear. Northwest winds 5 to 15 mph.
Lows in the 40s to upper 50s.
.THURSDAY...Mostly clear. Northwest winds 5 to 15 mph. Lows in
the 50s to lower 60s. Highs in the upper 60s to mid 70s.
.FRIDAY...Mostly clear. Northwest winds 5 to 15 mph. Lows in the
50s to lower 60s. Highs in the upper 60s to mid 70s.
.SATURDAY...Mostly clear. Northwest winds 5 to 15 mph. Lows in
the 40s to upper 50s. Highs in the 70s.
$$
CAZ518-010845-
Mountains of San Benito and Interior Monterey County including
Pinnacles National Park-
143 PM PDT Mon Aug 31 2026
.TONIGHT...
* Sky/weather.........Partly cloudy. Patchy smoke.
* Min temperature.....44-53.
* 24 hr trend......Little change.
* Max humidity........60-80 percent.
* 24 hr trend......35 percent wetter.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 5 to 10 mph.
* Ridges/upr slopes....West winds 5 to 15 mph with gusts to 20 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........2500 ft asl.
.TUESDAY...
* Sky/weather.........Mostly sunny. Areas of smoke.
* Max temperature.....70-78.
* 24 hr trend......6 degrees cooler.
* Min humidity........30-40 percent.
* 24 hr trend......10 percent wetter.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 10 to 15 mph. Gusts up to 20
mph in the afternoon.
* Ridges/upr slopes....Southwest winds 10 to 15 mph with gusts to
around 30 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........3000 ft asl.
.TUESDAY NIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
Smoke in the evening. Patchy fog and smoke after midnight.
* Min temperature.....43-53.
* Max humidity........70-90 percent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 5 to 10 mph. Gusts up to 20 mph
in the evening.
* Ridges/upr slopes....West winds 5 to 10 mph. Gusts up to 30 mph
decreasing to 20 mph after midnight.
* CWR.................0%.
.WEDNESDAY...
* Sky/weather.........Partly sunny then becoming sunny. Patchy fog
early in the morning.
* Max temperature.....73-81.
* Min humidity........35-45 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 5 to 10 mph.
* Ridges/upr slopes....Northwest winds 5 to 10 mph. Gusts up to 25
mph in the afternoon.
* CWR.................0%.
.EXTENDED...
.WEDNESDAY NIGHT...Mostly clear. West winds 10 to 20 mph. Lows in
the 40s to upper 50s.
.THURSDAY...Mostly clear. Northwest winds 10 to 20 mph. Lows in
the 40s to upper 50s. Highs in the 70s.
.FRIDAY...Mostly clear. West winds 5 to 15 mph. Lows in the 50s
to lower 60s. Highs in the 70s.
.SATURDAY...Mostly clear. West winds 5 to 15 mph. Lows in the 50s
to lower 60s. Highs in the 70s.
$$
NOAA`S NWS on the web at www.weather.gov/sanfrancisco