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
005
FNUS56 KMTR 202220
FWFMTR
Fire Weather Planning Forecast for the San Francisco Bay Area and
Central California Coast
National Weather Service San Francisco Bay Area
320 PM PDT Wed Aug 20 2025
...ELEVATED FIRE WEATHER CONDITIONS THURSDAY THROUGH THE WEEKEND
DUE TO HOT AND DRY CONDITIONS AND AFTERNOON WINDS...
.DISCUSSION...High pressure will bring hot and dry conditions to
the district through the weekend. The thermal belts will be active
with mild and dry conditions at night across the higher
elevations. Sea breezes develop each afternoon, bringing periods
of elevated fire weather conditions where the winds coincide with
hot and dry conditions. Monsoonal moisture arrives beginning
Friday, bringing high clouds and a very low but nonzero chance on
convection to the region. Gradual cooling is expected to arrive
the early part of next week.
Note : All winds are 20-foot Winds Unless otherwise specified.
Thunderstorms imply strong, gusty and erratic winds.
$$
CAZ505-211030-
Coastal North Bay...Including Point Reyes National Seashore-
320 PM PDT Wed Aug 20 2025
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....54-59.
* 24 hr trend......Little change.
* Max humidity........70-90 percent.
* 24 hr trend......10 percent drier.
* 20-foot winds.......Northwest winds 10 to 15 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........500 ft asl.
.THURSDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....73-81.
* 24 hr trend......5 degrees warmer.
* Min humidity........60-70 percent.
* 24 hr trend......Little change.
* 20-foot winds.......West winds 10 to 15 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........500 ft asl.
.THURSDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....51-56.
* Max humidity........80-100 percent.
* 20-foot winds.......Northwest winds 10 to 15 mph.
* CWR.................0%.
.FRIDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....68-76.
* Min humidity........70-80 percent.
* 20-foot winds.......Northwest winds 5 to 10 mph.
* CWR.................0%.
.EXTENDED...
.FRIDAY NIGHT...Partly cloudy in the evening then becoming mostly
cloudy. West winds 5 to 15 mph. Lows in the 50s.
.SATURDAY...Partly cloudy. West winds 5 to 15 mph. Lows in the
50s. Highs in the mid 60s to lower 70s.
.SUNDAY...Partly cloudy. West winds 5 to 15 mph. Lows in the 50s.
Highs in the 60s to lower 70s.
.MONDAY...Partly cloudy. Patchy fog. West winds 5 to 15 mph. Lows
in the 50s. Highs in the 60s to lower 70s.
$$
CAZ503-211030-
Sonoma Coastal Range-
320 PM PDT Wed Aug 20 2025
.TONIGHT...
* Sky/weather.........Clear.
* Min temperature.....60-67.
* 24 hr trend......5 degrees warmer.
* Max humidity........50-60 percent.
* 24 hr trend......20 percent drier.
* 20-foot winds.......
* Ridges/upr slopes....Northwest winds 5 to 10 mph. Gusts up to 20
mph in the evening.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.THURSDAY...
* Sky/weather.........Sunny.
* Max temperature.....91-99.
* 24 hr trend......5 degrees warmer.
* Min humidity........25-35 percent.
* 24 hr trend......10 percent drier.
* 20-foot winds.......
* Ridges/upr slopes....Northwest winds 5 to 10 mph. Gusts up to 20
mph in the afternoon.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.THURSDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....57-63.
* Max humidity........60-70 percent.
* 20-foot winds.......
* Ridges/upr slopes....Northwest winds 5 to 10 mph. Gusts up to 20
mph in the evening.
* CWR.................0%.
.FRIDAY...
* Sky/weather.........Sunny.
* Max temperature.....86-94.
* Min humidity........30-40 percent.
* 20-foot winds.......
* Ridges/upr slopes....North winds up to 5 mph shifting to the
southwest 5 to 10 mph in the afternoon.
* CWR.................0%.
.EXTENDED...
.FRIDAY NIGHT...Partly cloudy. Northwest winds 5 to 15 mph. Lows
in the 50s to mid 60s.
.SATURDAY...Mostly clear. West winds up to 10 mph. Lows in the
50s to mid 60s. Highs in the 80s to lower 90s.
.SUNDAY...Mostly clear. West winds up to 10 mph. Lows in the 50s
to lower 60s. Highs in the 70s to upper 80s.
.MONDAY...Mostly clear. Southwest winds up to 10 mph. Lows in the
50s to lower 60s. Highs in the upper 70s to mid 80s.
$$
CAZ502-211030-
Marin Coastal Range-
320 PM PDT Wed Aug 20 2025
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....53-58 except 63-68 above 2000 feet.
* 24 hr trend......Little change.
* Max humidity........70-90 percent except 40-45 percent above 2000
feet.
* 24 hr trend......10 percent drier.
* 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 with gusts to 20
mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.THURSDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....85-93.
* 24 hr trend......Little change.
* Min humidity........35-45 percent except 30 percent above 2000
feet.
* 24 hr trend......10 percent wetter.
* 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 20 mph
in the afternoon.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.THURSDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....52-57 except 61-66 above 2000 feet.
* Max humidity........70-90 percent except 50-60 percent above 2000
feet.
* 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 20 mph
in the evening.
* CWR.................0%.
.FRIDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....79-87.
* Min humidity........45-55 percent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 5 to 10 mph.
* Ridges/upr slopes....West winds 5 to 10 mph.
* CWR.................0%.
.EXTENDED...
.FRIDAY NIGHT...Mostly clear in the evening then becoming partly
cloudy. West winds 5 to 15 mph. Lows in the mid 50s to lower 60s.
.SATURDAY...Partly cloudy. West winds 5 to 15 mph. Lows in the
mid 50s to lower 60s. Highs in the 70s to lower 80s.
.SUNDAY...Partly cloudy. West winds 5 to 15 mph. Lows in the mid
50s to lower 60s. Highs in the 70s.
.MONDAY...Partly cloudy. Patchy fog. Southwest winds 5 to 15 mph.
Lows in the 50s to lower 60s. Highs in the 60s to upper 70s.
$$
CAZ506-211030-
North Bay Interior Valleys-
320 PM PDT Wed Aug 20 2025
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....55-62.
* 24 hr trend......5 degrees warmer.
* Max humidity........65-85 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........None.
.THURSDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....91-99.
* 24 hr trend......Little change.
* Min humidity........25-35 percent.
* 24 hr trend......10 percent drier.
* 20-foot winds.......Southwest winds 5 to 10 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.THURSDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....54-59.
* Max humidity........70-90 percent.
* 20-foot winds.......West winds 5 to 10 mph.
* CWR.................0%.
.FRIDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....87-95.
* Min humidity........35-45 percent.
* 20-foot winds.......Southwest winds 5 to 10 mph.
* CWR.................0%.
.EXTENDED...
.FRIDAY NIGHT...Mostly clear in the evening then becoming partly
cloudy. Southwest winds 5 to 15 mph. Lows in the 50s to mid 60s.
.SATURDAY...Partly cloudy. Southwest winds 5 to 15 mph. Lows in
the 50s to lower 60s. Highs in the 80s.
.SUNDAY...Partly cloudy. Southwest winds 5 to 15 mph. Lows in the
50s to lower 60s. Highs in the 70s to upper 80s.
.MONDAY...Partly cloudy. Southwest winds 5 to 15 mph. Lows in the
50s. Highs in the upper 70s to mid 80s.
$$
CAZ504-211030-
North Bay Interior Mountains-
320 PM PDT Wed Aug 20 2025
.TONIGHT...
* Sky/weather.........Mostly clear.
* Min temperature.....62-71.
* 24 hr trend......9 degrees warmer.
* Max humidity........40-45 percent except 30-40 percent above 2000
feet.
* 24 hr trend......20 percent drier.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 5 to 10 mph shifting to the
north 5 to 10 mph after midnight. Gusts up to 20 mph in the
evening.
* Ridges/upr slopes....Northwest winds 5 to 10 mph. Gusts up to 20
mph in the evening.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.THURSDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....93-101.
* 24 hr trend......4 degrees warmer.
* Min humidity........20-30 percent.
* 24 hr trend......10 percent drier.
* 20-foot winds.......
* Valleys/lwr slopes...North winds 5 to 10 mph shifting to the
southwest 5 to 10 mph in the afternoon.
* Ridges/upr slopes....Northwest winds up to 5 mph shifting to the
southwest 5 to 10 mph and gusts to around 20 mph in the
afternoon.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.THURSDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....60-70.
* Max humidity........45-50 percent except 33-43 percent above 2000
feet.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 5 to 10 mph.
* Ridges/upr slopes....West winds 5 to 10 mph. Gusts up to 20 mph
in the evening.
* CWR.................0%.
.FRIDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....92-100.
* Min humidity........18-28 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds up to 5 mph shifting to the
south 5 to 10 mph in the afternoon.
* Ridges/upr slopes....Northwest winds up to 5 mph shifting to the
south 5 to 10 mph in the afternoon.
* CWR.................0%.
.EXTENDED...
.FRIDAY NIGHT...Mostly clear. Southwest winds 5 to 15 mph. Lows
in the 60s to lower 70s.
.SATURDAY...Mostly clear. Southwest winds 5 to 15 mph. Lows in
the 60s to lower 70s. Highs in the upper 80s to mid 90s.
.SUNDAY...Mostly clear. Southwest winds 5 to 15 mph. Lows in the
50s to upper 60s. Highs in the mid 80s to lower 90s.
.MONDAY...Mostly clear. Southwest winds 5 to 15 mph. Lows in the
50s to upper 60s. Highs in the 80s to lower 90s.
$$
CAZ006-211030-
San Francisco-
320 PM PDT Wed Aug 20 2025
.TONIGHT...
* Sky/weather.........Mostly clear then becoming partly cloudy.
* Min temperature.....54-59.
* 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........500 ft asl.
.THURSDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....68-76.
* 24 hr trend......Little change.
* Min humidity........65-75 percent.
* 24 hr trend......10 percent drier.
* 20-foot winds.......Southwest winds 5 to 10 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........500 ft asl.
.THURSDAY NIGHT...
* Sky/weather.........Mostly cloudy.
* Min temperature.....54-59.
* Max humidity........90 percent.
* 20-foot winds.......West winds 5 to 10 mph.
* CWR.................0%.
.FRIDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....66-74.
* Min humidity........75-85 percent.
* 20-foot winds.......West winds 5 to 10 mph.
* CWR.................0%.
.EXTENDED...
.FRIDAY NIGHT...Mostly cloudy. West winds 10 to 20 mph. Lows in
the upper 50s.
.SATURDAY...Mostly cloudy. West winds 10 to 20 mph. Lows in the
upper 50s. Highs in the 60s to lower 70s.
.SUNDAY...Mostly cloudy. West winds 10 to 20 mph. Lows in the
upper 50s. Highs in the 60s to lower 70s.
.MONDAY...Mostly cloudy. Southwest winds 10 to 20 mph. Lows in
the upper 50s. Highs in the 60s.
$$
CAZ509-211030-
San Francisco Peninsula Coast-
320 PM PDT Wed Aug 20 2025
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....51-56.
* 24 hr trend......Little change.
* Max humidity........90-100 percent.
* 24 hr trend......10 percent drier.
* 20-foot winds.......Northwest winds 10 to 15 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........500 ft asl.
.THURSDAY...
* Sky/weather.........Partly sunny.
* Max temperature.....71-79.
* 24 hr trend......Little change.
* Min humidity........60-70 percent.
* 24 hr trend......Little change.
* 20-foot winds.......Northwest winds 5 to 10 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........500 ft asl.
.THURSDAY NIGHT...
* Sky/weather.........Mostly cloudy.
* Min temperature.....52-57.
* Max humidity........90-100 percent.
* 20-foot winds.......Northwest winds 5 to 10 mph.
* CWR.................0%.
.FRIDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....67-75.
* Min humidity........70-80 percent.
* 20-foot winds.......Northwest winds 5 to 10 mph.
* CWR.................0%.
.EXTENDED...
.FRIDAY NIGHT...Mostly cloudy. Patchy fog. Northwest winds 5 to
15 mph. Lows in the 50s.
.SATURDAY...Mostly cloudy. Patchy fog. Northwest winds 5 to
15 mph. Lows in the 50s. Highs in the mid 60s to lower 70s.
.SUNDAY...Mostly cloudy. Patchy fog. West winds 5 to 15 mph. Lows
in the mid 50s. Highs in the 60s to lower 70s.
.MONDAY...Mostly cloudy. Patchy fog. West winds 5 to 15 mph. Lows
in the 50s. Highs in the 60s to lower 70s.
$$
CAZ508-211030-
San Francisco Bay Shoreline-
320 PM PDT Wed Aug 20 2025
.TONIGHT...
* Sky/weather.........Mostly clear then becoming partly cloudy.
* Min temperature.....55-60.
* 24 hr trend......Little change.
* Max humidity........80-90 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........500 ft asl.
.THURSDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....81-89.
* 24 hr trend......7 degrees warmer.
* Min humidity........45-55 percent.
* 24 hr trend......Little change.
* 20-foot winds.......West winds 5 to 10 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........500 ft asl.
.THURSDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....56-61.
* Max humidity........80-90 percent.
* 20-foot winds.......West winds 10 to 15 mph.
* CWR.................0%.
.FRIDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....78-86.
* Min humidity........50-60 percent.
* 20-foot winds.......West winds 5 to 10 mph.
* CWR.................0%.
.EXTENDED...
.FRIDAY NIGHT...Mostly clear in the evening then becoming partly
cloudy. West winds 5 to 15 mph. Lows in the mid 50s to lower 60s.
.SATURDAY...Partly cloudy. West winds 5 to 15 mph. Lows in the
mid 50s to lower 60s. Highs in the 70s to lower 80s.
.SUNDAY...Partly cloudy. West winds 5 to 15 mph. Lows in the mid
50s to lower 60s. Highs in the 70s.
.MONDAY...Partly cloudy. West winds 5 to 15 mph. Lows in the mid
50s to lower 60s. Highs in the 70s.
$$
CAZ510-211030-
East Bay Interior Valleys-
320 PM PDT Wed Aug 20 2025
.TONIGHT...
* Sky/weather.........Mostly clear then becoming partly cloudy.
* Min temperature.....59-68.
* 24 hr trend......4 degrees warmer.
* Max humidity........55-75 percent.
* 24 hr trend......20 percent drier.
* 20-foot winds.......Southwest winds 10 to 20 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.THURSDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....94-102.
* 24 hr trend......4 degrees warmer.
* Min humidity........25-35 percent.
* 24 hr trend......Little change.
* 20-foot winds.......West winds 5 to 10 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.THURSDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....58-67.
* Max humidity........65-85 percent.
* 20-foot winds.......Southwest winds 10 to 15 mph.
* CWR.................0%.
.FRIDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....91-99.
* Min humidity........25-35 percent.
* 20-foot winds.......West winds 5 to 10 mph.
* CWR.................0%.
.EXTENDED...
.FRIDAY NIGHT...Mostly clear. Southwest winds 10 to 20 mph. Lows
in the 60s to lower 70s.
.SATURDAY...Mostly clear. West winds 10 to 20 mph. Lows in the
50s to upper 60s. Highs in the mid 80s to lower 90s.
.SUNDAY...Mostly clear. West winds 10 to 20 mph. Lows in the 50s
to upper 60s. Highs in the 80s.
.MONDAY...Mostly clear. West winds 10 to 20 mph. Lows in the 50s
to upper 60s. Highs in the 80s.
$$
CAZ513-211030-
Santa Clara Valley...including San Jose-
320 PM PDT Wed Aug 20 2025
.TONIGHT...
* Sky/weather.........Mostly clear then becoming partly cloudy.
* Min temperature.....56-61.
* 24 hr trend......Little change.
* Max humidity........70-80 percent.
* 24 hr trend......10 percent drier.
* 20-foot winds.......Northwest winds 5 to 10 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.THURSDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....92-100.
* 24 hr trend......4 degrees warmer.
* Min humidity........25-35 percent.
* 24 hr trend......Little change.
* 20-foot winds.......Northwest winds 5 to 10 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.THURSDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....58-63.
* Max humidity........60-80 percent.
* 20-foot winds.......Northwest winds 5 to 10 mph.
* CWR.................0%.
.FRIDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....90-98.
* Min humidity........30-40 percent.
* 20-foot winds.......West winds 5 to 10 mph.
* CWR.................0%.
.EXTENDED...
.FRIDAY NIGHT...Mostly clear. West winds 5 to 15 mph. Lows in the
upper 50s to mid 60s.
.SATURDAY...Mostly clear. West winds 5 to 15 mph. Lows in the
upper 50s to mid 60s. Highs in the mid 80s to lower 90s.
.SUNDAY...Mostly clear. West winds 5 to 15 mph. Lows in the 50s
to mid 60s. Highs in the 80s to lower 90s.
.MONDAY...Partly cloudy. West winds 5 to 15 mph. Lows in the mid
50s to lower 60s. Highs in the 80s.
$$
CAZ512-211030-
Santa Cruz Mountains-
320 PM PDT Wed Aug 20 2025
.TONIGHT...
* Sky/weather.........Mostly clear then becoming partly cloudy.
* Min temperature.....56-66 except 65-73 above 2000 feet.
* 24 hr trend......5 degrees warmer.
* Max humidity........53-73 percent except 35-45 percent above 2000
feet.
* 24 hr trend......10 percent drier.
* 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 evening.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........500 ft asl.
.THURSDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....86-94.
* 24 hr trend......Little change.
* Min humidity........35-45 percent.
* 24 hr trend......10 percent drier.
* 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.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........500 ft asl.
.THURSDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....57-67.
* Max humidity........53-73 percent except 35-45 percent above 2000
feet.
* 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 evening.
* CWR.................0%.
.FRIDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....83-91.
* Min humidity........40-50 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 5 to 10 mph.
* Ridges/upr slopes....West winds 5 to 10 mph.
* CWR.................0%.
.EXTENDED...
.FRIDAY NIGHT...Mostly clear. West winds 5 to 15 mph. Lows in the
50s to upper 60s.
.SATURDAY...Mostly clear. West winds 5 to 15 mph. Lows in the 50s
to upper 60s. Highs in the 70s to mid 80s.
.SUNDAY...Mostly clear. West winds 5 to 15 mph. Lows in the 50s
to mid 60s. Highs in the mid 70s to lower 80s.
.MONDAY...Mostly clear. West winds 5 to 15 mph. Lows in the 50s
to mid 60s. Highs in the 70s to lower 80s.
$$
CAZ515-211030-
East Bay Hills-
320 PM PDT Wed Aug 20 2025
.TONIGHT...
* Sky/weather.........Mostly clear then becoming partly cloudy.
* Min temperature.....59-69.
* 24 hr trend......7 degrees warmer.
* Max humidity........50-70 percent except 28-38 percent above 2000
feet.
* 24 hr trend......10 percent drier.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 10 to 15 mph and gusty.
* Ridges/upr slopes....Southwest winds 10 to 15 mph with gusts to
around 30 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.THURSDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....91-99.
* 24 hr trend......Little change.
* Min humidity........30-40 percent except 20 percent above 2000
feet.
* 24 hr trend......10 percent drier.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 5 to 10 mph and gusts to around
20 mph.
* Ridges/upr slopes....West winds 5 to 10 mph with gusts 20 to 30
mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.THURSDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....59-69 except 66-74 above 2000 feet.
* Max humidity........53-63 percent except 23-33 percent above 2000
feet.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 5 to 10 mph with gusts to 20
mph.
* Ridges/upr slopes....Southwest winds 5 to 10 mph with gusts to 20
mph.
* CWR.................0%.
.FRIDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....83-91 except 89-97 above 2000 feet.
* Min humidity........35-45 percent except 15-20 percent above 2000
feet.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 5 to 10 mph. Gusts up to 20 mph
in the morning.
* Ridges/upr slopes....West winds 5 to 10 mph with gusts 20 to 30
mph.
* CWR.................0%.
.EXTENDED...
.FRIDAY NIGHT...Mostly clear. Southwest winds 10 to 20 mph. Lows
in the 60s to lower 70s.
.SATURDAY...Mostly clear. West winds 10 to 20 mph. Lows in the
60s to lower 70s. Highs in the 80s to lower 90s.
.SUNDAY...Mostly clear. West winds 10 to 20 mph. Lows in the 60s
to lower 70s. Highs in the 80s.
.MONDAY...Mostly clear. West winds 10 to 20 mph. Lows in the 50s
to upper 60s. Highs in the upper 70s to mid 80s.
$$
CAZ514-211030-
Eastern Santa Clara Hills-
320 PM PDT Wed Aug 20 2025
.TONIGHT...
* Sky/weather.........Mostly clear then becoming partly cloudy.
* Min temperature.....60-65 except 65-70 above 2000 feet.
* 24 hr trend......7 degrees warmer.
* Max humidity........35 percent except 25-30 percent above 2000
feet.
* 24 hr trend......5 percent drier.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 5 to 10 mph. Gusts up to 20
mph in the evening.
* Ridges/upr slopes....West winds around 5 to 10 mph with gusts to
15 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.THURSDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....92-100.
* 24 hr trend......10 degrees warmer.
* Min humidity........18-28 percent.
* 24 hr trend......5 percent drier.
* 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.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.THURSDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....63-68 except 68-73 above 2000 feet.
* Max humidity........35-45 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest 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 20 mph
in the evening.
* CWR.................0%.
.FRIDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....93-101.
* Min humidity........18-28 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Upvalley 3 to 7 mph becoming southwest 5 to
10 mph in the afternoon.
* Ridges/upr slopes....West winds 5 to 10 mph. Gusts up to 20 mph
in the afternoon.
* CWR.................0%.
.EXTENDED...
.FRIDAY NIGHT...Mostly clear. West winds 5 to 15 mph. Lows in the
60s to mid 70s.
.SATURDAY...Mostly clear. West winds 5 to 15 mph. Lows in the 60s
to lower 70s. Highs in the upper 80s to mid 90s.
.SUNDAY...Mostly clear. West winds 5 to 15 mph. Lows in the 60s
to lower 70s. Highs in the 80s to mid 90s.
.MONDAY...Mostly clear. Southwest winds 5 to 15 mph. Lows in the
50s to upper 60s. Highs in the mid 80s to lower 90s.
$$
CAZ529-211030-
Northern Monterey Bay-
320 PM PDT Wed Aug 20 2025
.TONIGHT...
* Sky/weather.........Mostly clear then becoming partly cloudy.
* Min temperature.....53-58.
* 24 hr trend......4 degrees warmer.
* Max humidity........80-90 percent.
* 24 hr trend......Little change.
* 20-foot winds.......South winds 5 to 10 mph shifting to the north
up to 5 mph after midnight.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........500 ft asl.
.THURSDAY...
* Sky/weather.........Partly sunny.
* Max temperature.....78-86.
* 24 hr trend......4 degrees warmer.
* Min humidity........45-55 percent.
* 24 hr trend......Little change.
* 20-foot winds.......Southwest winds 5 to 10 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........500 ft asl.
.THURSDAY NIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
* Min temperature.....54-59.
* Max humidity........80-90 percent.
* 20-foot winds.......West winds 5 to 10 mph shifting to the
northwest up to 5 mph after midnight.
* CWR.................0%.
.FRIDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....77-85.
* Min humidity........55-65 percent.
* 20-foot winds.......West winds 5 to 10 mph.
* CWR.................0%.
.EXTENDED...
.FRIDAY NIGHT...Mostly clear in the evening then becoming mostly
cloudy. West winds 5 to 15 mph. Lows in the upper 50s.
.SATURDAY...Partly cloudy. West winds 5 to 15 mph. Lows in the
mid 50s to lower 60s. Highs in the 70s.
.SUNDAY...Partly cloudy. Patchy fog. West winds 5 to 15 mph. Lows
in the upper 50s. Highs in the 60s to upper 70s.
.MONDAY...Partly cloudy. Patchy fog. Southwest winds 5 to 15 mph.
Lows in the mid 50s. Highs in the upper 60s to mid 70s.
$$
CAZ530-211030-
Southern Monterey Bay and Big Sur Coast-
320 PM PDT Wed Aug 20 2025
.TONIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
* Min temperature.....51-56 except Big Sur 57-62.
* 24 hr trend......Little change.
* Max humidity........90 percent except Big Sur 50 percent.
* 24 hr trend......Little change.
* 20-foot winds.......West winds 5 to 10 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........500 ft asl.
.THURSDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....69-74 except Big Sur 81-86.
* 24 hr trend......Little change.
* Min humidity........60 percent except Big Sur 40 percent.
* 24 hr trend......Little change.
* 20-foot winds.......West winds 5 to 10 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........500 ft asl.
.THURSDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....57-62.
* Max humidity........90 percent except Big Sur 60 percent.
* 20-foot winds.......West winds 5 to 10 mph.
* CWR.................0%.
.FRIDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....67-72 except Big Sur 77-82.
* Min humidity........70 percent except Big Sur 50 percent.
* 20-foot winds.......West winds 5 to 10 mph.
* CWR.................0%.
.EXTENDED...
.FRIDAY NIGHT...Partly cloudy in the evening then becoming mostly
cloudy. West winds 5 to 15 mph. Lows in the 50s to upper 60s.
.SATURDAY...Mostly cloudy. West winds 5 to 15 mph. Lows in the
50s to mid 60s. Highs in the 60s to mid 70s.
.SUNDAY...Mostly cloudy. West winds 5 to 15 mph. Lows in the 50s
to mid 60s. Highs in the mid 60s to lower 70s.
.MONDAY...Mostly cloudy. West winds 5 to 15 mph. Lows in the 50s
to lower 60s. Highs in the 60s to lower 70s.
$$
CAZ528-211030-
Northern Salinas Valley...Hollister Valley...and Carmel Valley-
320 PM PDT Wed Aug 20 2025
.TONIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
* Min temperature.....54-59.
* 24 hr trend......5 degrees warmer.
* Max humidity........70-90 percent.
* 24 hr trend......10 percent drier.
* 20-foot winds.......West winds 10 to 20 mph decreasing to 5 to 10
mph after midnight.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.THURSDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....83-91.
* 24 hr trend......5 degrees warmer.
* Min humidity........35-45 percent.
* 24 hr trend......Little change.
* 20-foot winds.......Northwest winds up to 5 mph increasing to
west 10 to 15 mph in the afternoon.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.THURSDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....56-61.
* Max humidity........70-90 percent.
* 20-foot winds.......West winds 5 to 10 mph.
* CWR.................0%.
.FRIDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....82-90.
* Min humidity........35-45 percent.
* 20-foot winds.......West winds 5 to 10 mph.
* CWR.................0%.
.EXTENDED...
.FRIDAY NIGHT...Mostly clear in the evening then becoming partly
cloudy. West winds 10 to 20 mph. Lows in the 50s to mid 60s.
.SATURDAY...Partly cloudy. West winds 10 to 20 mph. Lows in the
50s to mid 60s. Highs in the upper 70s to mid 80s.
.SUNDAY...Partly cloudy. West winds 10 to 20 mph. Lows in the mid
50s to lower 60s. Highs in the mid 70s to lower 80s.
.MONDAY...Partly cloudy. West winds 10 to 20 mph. Lows in the mid
50s to lower 60s. Highs in the 70s to lower 80s.
$$
CAZ516-211030-
Southern Salinas Valley...Arroyo Seco...and Lake San Antonio-
320 PM PDT Wed Aug 20 2025
.TONIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
* Min temperature.....55-60.
* 24 hr trend......6 degrees warmer.
* Max humidity........50-70 percent.
* 24 hr trend......10 percent drier.
* 20-foot winds.......Northwest winds 15 to 25 mph decreasing to 5
to 10 mph after midnight.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.THURSDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....95-103.
* 24 hr trend......14 degrees warmer.
* Min humidity........15-25 percent.
* 24 hr trend......5 percent drier.
* 20-foot winds.......Northwest winds up to 5 mph increasing to 10
to 20 mph in the afternoon.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.THURSDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....59-64.
* Max humidity........50-70 percent.
* 20-foot winds.......Northwest winds 10 to 20 mph decreasing to 5
to 10 mph after midnight.
* CWR.................0%.
.FRIDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....96-104.
* Min humidity........18-28 percent.
* 20-foot winds.......North winds up to 5 mph shifting to the
southwest 5 to 10 mph in the afternoon.
* CWR.................0%.
.EXTENDED...
.FRIDAY NIGHT...Mostly clear. Northwest winds 10 to 20 mph. Lows
in the upper 50s to mid 60s.
.SATURDAY...Mostly clear. West winds 10 to 20 mph. Lows in the
50s to mid 60s. Highs 92 to 100.
.SUNDAY...Mostly clear. Northwest winds 10 to 20 mph. Lows in the
mid 50s to lower 60s. Highs in the 80s to upper 90s.
.MONDAY...Partly cloudy. West winds 10 to 20 mph. Lows in the 50s
to lower 60s. Highs in the upper 80s to mid 90s.
$$
CAZ517-211030-
Santa Lucia Mountains and Los Padres National Forest-
320 PM PDT Wed Aug 20 2025
.TONIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
* Min temperature.....59-68 except 68-75 above 2000 feet.
* 24 hr trend......15 degrees warmer.
* Max humidity........38-48 percent except 20-30 percent above 2000
feet.
* 24 hr trend......5 percent drier.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 5 to 10 mph.
* Ridges/upr slopes....Northwest winds 5 to 15 mph with gusts to 20
mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.THURSDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....92-100.
* 24 hr trend......Little change.
* Min humidity........15-25 percent.
* 24 hr trend......Little change.
* 20-foot winds.......
* Valleys/lwr slopes...North winds 5 to 10 mph.
* Ridges/upr slopes....North winds 5 to 10 mph. Gusts up to 25 mph
in the afternoon.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.THURSDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....62-72 except 72-79 above 2000 feet.
* Max humidity........30-40 percent except 20-25 percent above 2000
feet.
* 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 evening.
* CWR.................0%.
.FRIDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....91-99.
* Min humidity........23-33 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 5 to 10 mph.
* Ridges/upr slopes....North winds up to 5 mph shifting to the
southwest 5 to 10 mph and gusts to around 20 mph in the
afternoon.
* CWR.................0%.
.EXTENDED...
.FRIDAY NIGHT...Mostly clear. Northwest winds 5 to 15 mph. Lows
in the 60s to lower 70s.
.SATURDAY...Mostly clear. Northwest winds 5 to 15 mph. Lows in
the 60s to lower 70s. Highs in the 80s.
.SUNDAY...Mostly clear. Northwest winds 5 to 15 mph. Lows in the
60s to lower 70s. Highs in the 70s to upper 80s.
.MONDAY...Mostly clear. Northwest winds 5 to 15 mph. Lows in the
50s to upper 60s. Highs in the upper 70s to mid 80s.
$$
CAZ518-211030-
Mountains of San Benito and Interior Monterey County including
Pinnacles National Park-
320 PM PDT Wed Aug 20 2025
.TONIGHT...
* Sky/weather.........Mostly clear then becoming partly cloudy.
* Min temperature.....60-70.
* 24 hr trend......7 degrees warmer.
* Max humidity........40-50 percent.
* 24 hr trend......10 percent drier.
* 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 15 mph with gusts to 20
mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.THURSDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....94-102.
* 24 hr trend......7 degrees warmer.
* Min humidity........18-28 percent.
* 24 hr trend......Little change.
* 20-foot winds.......
* Valleys/lwr slopes...North winds 5 to 10 mph. Gusts up to 20 mph
in the afternoon.
* Ridges/upr slopes....North winds 5 to 10 mph. Gusts up to 30 mph
in the afternoon.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.THURSDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....64-74.
* Max humidity........38-48 percent.
* 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 in the evening.
* CWR.................0%.
.FRIDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....96-104.
* Min humidity........18-28 percent.
* 20-foot winds.......
* Valleys/lwr slopes...North winds up to 5 mph shifting to the
northwest 5 to 10 mph in the afternoon.
* Ridges/upr slopes....North winds up to 5 mph shifting to the west
10 to 15 mph with gusts 20 to 30 mph in the afternoon.
* CWR.................0%.
.EXTENDED...
.FRIDAY NIGHT...Mostly clear. West winds 5 to 15 mph. Lows in the
60s to mid 70s.
.SATURDAY...Mostly clear. West winds 5 to 15 mph. Lows in the 60s
to mid 70s. Highs in the 80s to mid 90s.
.SUNDAY...Mostly clear. West winds 5 to 15 mph. Lows in the 60s
to mid 70s. Highs in the 80s to lower 90s.
.MONDAY...Mostly clear. West winds 5 to 15 mph. Lows in the 60s
to lower 70s. Highs in the 80s.
$$
NOAA`S NWS on the web at www.weather.gov/sanfrancisco