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
800
FNUS56 KMTR 212203
FWFMTR
Fire Weather Planning Forecast for the San Francisco Bay Area and
Central California Coast
National Weather Service San Francisco Bay Area
303 PM PDT Thu Aug 21 2025
...ELEVATED FIRE WEATHER THREAT CONTINUES THROUGH THE WEEKEND DUE
TO HOT AND DRY CONDITIONS AND AFTERNOON WINDS...
.DISCUSSION...Hot and dry conditions across the district persist
as high pressure continues over the region. Breezy onshore winds
develop each afternoon as sea breezes push. Little to no relief
is expected overnight with warm morning lows and poor humidity
recoveries in the thermal belts. Monsoonal moisture from the south
brings a very low, but non-zero, chance for elevated convection
Friday and Saturday, especially in the Central Coast. A gradual
cooling trend begins the early part of next week as the ridge
breaks down.
Note : All winds are 20-foot Winds Unless otherwise specified.
Thunderstorms imply strong, gusty and erratic winds.
$$
CAZ505-221015-
Coastal North Bay...Including Point Reyes National Seashore-
303 PM PDT Thu Aug 21 2025
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....50-55.
* 24 hr trend......Little change.
* Max humidity........80-100 percent.
* 24 hr trend......Little change.
* 20-foot winds.......Northwest winds 10 to 20 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........500 ft asl.
.FRIDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....68-76.
* 24 hr trend......6 degrees cooler.
* Min humidity........70-80 percent.
* 24 hr trend......10 percent wetter.
* 20-foot winds.......West winds 5 to 10 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........500 ft asl.
.FRIDAY NIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
* Min temperature.....51-56.
* Max humidity........80-100 percent.
* 20-foot winds.......West winds 5 to 10 mph.
* CWR.................0%.
.SATURDAY...
* Sky/weather.........Partly sunny.
* Max temperature.....66-74.
* Min humidity........80-90 percent.
* 20-foot winds.......West winds 5 to 10 mph.
* CWR.................0%.
.EXTENDED...
.SATURDAY NIGHT...Partly cloudy in the evening then becoming
mostly cloudy. West winds 5 to 15 mph. Lows in the 50s.
.SUNDAY...Partly cloudy. Patchy dense fog. West winds 10 to
20 mph. Lows in the 50s. Highs in the mid 60s to lower 70s.
.MONDAY...Partly cloudy. West winds 5 to 15 mph. Lows in the 50s.
Highs in the mid 60s to lower 70s.
.TUESDAY...Partly cloudy. Southwest winds 5 to 15 mph. Lows in
the 50s. Highs in the 60s to lower 70s.
$$
CAZ503-221015-
Sonoma Coastal Range-
303 PM PDT Thu Aug 21 2025
.TONIGHT...
* Sky/weather.........Mostly clear then becoming partly cloudy.
* Min temperature.....57-64.
* 24 hr trend......Little change.
* Max humidity........50-70 percent.
* 24 hr trend......Little change.
* 20-foot winds.......
* Ridges/upr slopes....Northwest winds 5 to 10 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.FRIDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....86-94.
* 24 hr trend......8 degrees cooler.
* Min humidity........30-40 percent.
* 24 hr trend......10 percent wetter.
* 20-foot winds.......
* Ridges/upr slopes....North winds 5 to 10 mph shifting to the
southwest 5 to 10 mph in the afternoon.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.FRIDAY NIGHT...
* Sky/weather.........Mostly clear then becoming partly cloudy.
* Min temperature.....58-64.
* Max humidity........60-80 percent.
* 20-foot winds.......
* Ridges/upr slopes....West winds 5 to 10 mph shifting to the
northeast up to 5 mph after midnight.
* CWR.................0%.
.SATURDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....85-93.
* Min humidity........35-45 percent.
* 20-foot winds.......
* Ridges/upr slopes....South winds 5 to 10 mph.
* CWR.................0%.
.EXTENDED...
.SATURDAY NIGHT...Partly cloudy in the evening then becoming
mostly clear. Northwest winds 5 to 15 mph. Lows in the mid 50s to
lower 60s.
.SUNDAY...Mostly clear. West winds 5 to 15 mph. Lows in the mid
50s to lower 60s. Highs in the 80s.
.MONDAY...Mostly clear. West winds 5 to 15 mph. Lows in the mid
50s to lower 60s. Highs in the 70s to upper 80s.
.TUESDAY...Mostly clear. South winds 5 to 15 mph. Lows in the mid
50s to lower 60s. Highs in the upper 70s to mid 80s.
$$
CAZ502-221015-
Marin Coastal Range-
303 PM PDT Thu Aug 21 2025
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....51-56 except 61-66 above 2000 feet.
* 24 hr trend......Little change.
* Max humidity........70-90 percent except 45 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. Gusts up to 25 mph
in the evening.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.FRIDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....81-89.
* 24 hr trend......Little change.
* Min humidity........45-55 percent.
* 24 hr trend......10 percent wetter.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 5 to 10 mph.
* Ridges/upr slopes....West winds 5 to 10 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.FRIDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....52-57 except 61-66 above 2000 feet.
* Max humidity........75-95 percent except 50-60 percent above 2000
feet.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 5 to 10 mph.
* Ridges/upr slopes....Southwest winds 5 to 10 mph.
* CWR.................0%.
.SATURDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....77-85 except 74-79 above 2000 feet.
* Min humidity........55-65 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...
.SATURDAY NIGHT...Partly cloudy in the evening then becoming
mostly cloudy. West winds 10 to 20 mph. Lows in the mid 50s to
lower 60s.
.SUNDAY...Partly cloudy. West winds 10 to 20 mph. Lows in the 50s
to lower 60s. Highs in the 70s.
.MONDAY...Partly cloudy. West winds 5 to 15 mph. Lows in the 50s
to lower 60s. Highs in the 60s to upper 70s.
.TUESDAY...Partly cloudy. Southwest winds 5 to 15 mph. Lows in
the mid 50s to lower 60s. Highs in the upper 60s to mid 70s.
$$
CAZ506-221015-
North Bay Interior Valleys-
303 PM PDT Thu Aug 21 2025
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....52-59.
* 24 hr trend......Little change.
* Max humidity........70-90 percent.
* 24 hr trend......Little change.
* 20-foot winds.......Southwest winds 10 to 15 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.FRIDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....88-96.
* 24 hr trend......10 degrees cooler.
* Min humidity........35-45 percent.
* 24 hr trend......20 percent wetter.
* 20-foot winds.......South winds 5 to 10 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.FRIDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....54-60.
* Max humidity........70-90 percent.
* 20-foot winds.......Southwest winds 5 to 10 mph.
* CWR.................0%.
.SATURDAY...
* Sky/weather.........Partly sunny then becoming sunny.
* Max temperature.....86-94.
* Min humidity........40-50 percent.
* 20-foot winds.......Southwest winds 5 to 10 mph.
* CWR.................0%.
.EXTENDED...
.SATURDAY NIGHT...Mostly clear in the evening then becoming
partly cloudy. Southwest winds 5 to 15 mph. Lows in the 50s to
lower 60s.
.SUNDAY...Partly cloudy. Southwest winds 10 to 20 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 to lower 60s. Highs in the upper 70s to mid 80s.
.TUESDAY...Partly cloudy. Southwest winds 5 to 15 mph. Lows in
the 50s. Highs in the upper 70s to mid 80s.
$$
CAZ504-221015-
North Bay Interior Mountains-
303 PM PDT Thu Aug 21 2025
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....60-70.
* 24 hr trend......5 degrees cooler.
* Max humidity........43-53 percent.
* 24 hr trend......5 percent wetter.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 10 to 15 mph decreasing to 5
to 10 mph after midnight.
* Ridges/upr slopes....West winds 5 to 10 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.FRIDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....92-100.
* 24 hr trend......7 degrees warmer.
* Min humidity........18-28 percent.
* 24 hr trend......5 percent drier.
* 20-foot winds.......
* Valleys/lwr slopes...South winds 5 to 10 mph.
* Ridges/upr slopes....South winds 5 to 10 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.FRIDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....61-71.
* Max humidity........45-50 percent except 33-43 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.
* CWR.................0%.
.SATURDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....91-99.
* Min humidity........25-35 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 5 to 10 mph shifting to the
south 10 to 15 mph in the afternoon.
* Ridges/upr slopes....Southwest winds 5 to 10 mph.
* CWR.................0%.
.EXTENDED...
.SATURDAY NIGHT...Partly cloudy in the evening then becoming
mostly clear. Southwest winds 5 to 15 mph. Lows in the 60s to
lower 70s.
.SUNDAY...Mostly clear. Southwest winds 5 to 15 mph. Lows in the
60s to lower 70s. 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 mid 80s to lower 90s.
.TUESDAY...Mostly clear. Southwest winds 5 to 15 mph. Lows in the
50s to upper 60s. Highs in the 80s to lower 90s.
$$
CAZ006-221015-
San Francisco-
303 PM PDT Thu Aug 21 2025
.TONIGHT...
* Sky/weather.........Partly cloudy then becoming mostly 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 20 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........500 ft asl.
.FRIDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....66-74.
* 24 hr trend......Little change.
* Min humidity........70-80 percent.
* 24 hr trend......20 percent wetter.
* 20-foot winds.......West winds 10 to 20 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........500 ft asl.
.FRIDAY NIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
* Min temperature.....54-59.
* Max humidity........90-100 percent.
* 20-foot winds.......West winds 10 to 20 mph.
* CWR.................0%.
.SATURDAY...
* Sky/weather.........Mostly cloudy then becoming mostly sunny.
* Max temperature.....64-72.
* Min humidity........75-85 percent.
* 20-foot winds.......West winds 10 to 20 mph.
* CWR.................0%.
.EXTENDED...
.SATURDAY NIGHT...Mostly cloudy. West winds 15 to 25 mph. Lows in
the upper 50s.
.SUNDAY...Mostly cloudy. West winds 15 to 25 mph. Lows in the
upper 50s. Highs in the 60s.
.MONDAY...Mostly cloudy. West winds 10 to 20 mph. Lows in the
upper 50s. Highs in the 60s to lower 70s.
.TUESDAY...Mostly cloudy. Southwest winds 10 to 20 mph. Lows in
the upper 50s. Highs in the 60s to lower 70s.
$$
CAZ509-221015-
San Francisco Peninsula Coast-
303 PM PDT Thu Aug 21 2025
.TONIGHT...
* Sky/weather.........Mostly cloudy.
* Min temperature.....51-56.
* 24 hr trend......Little change.
* Max humidity........80-100 percent.
* 24 hr trend......10 percent wetter.
* 20-foot winds.......Northwest winds 10 to 15 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........500 ft asl.
.FRIDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....67-75.
* 24 hr trend......9 degrees cooler.
* Min humidity........65-75 percent.
* 24 hr trend......10 percent wetter.
* 20-foot winds.......Northwest winds 10 to 15 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........500 ft asl.
.FRIDAY NIGHT...
* Sky/weather.........Mostly cloudy.
* Min temperature.....52-57.
* Max humidity........90-100 percent.
* 20-foot winds.......Northwest winds 10 to 15 mph.
* CWR.................0%.
.SATURDAY...
* Sky/weather.........Partly sunny.
* Max temperature.....66-74.
* Min humidity........75-85 percent.
* 20-foot winds.......West winds 5 to 10 mph.
* CWR.................0%.
.EXTENDED...
.SATURDAY NIGHT...Mostly cloudy. Northwest winds 10 to 20 mph.
Lows in the mid to upper 50s.
.SUNDAY...Mostly cloudy. Northwest winds 10 to 20 mph. Lows in
the 50s. Highs in the mid 60s to lower 70s.
.MONDAY...Mostly cloudy. West winds 5 to 15 mph. Lows in the 50s.
Highs in the 60s to lower 70s.
.TUESDAY...Mostly cloudy. Patchy fog. Southwest winds 5 to
15 mph. Lows in the 50s. Highs in the 60s to lower 70s.
$$
CAZ508-221015-
San Francisco Bay Shoreline-
303 PM PDT Thu Aug 21 2025
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....54-59.
* 24 hr trend......Little change.
* Max humidity........80-90 percent.
* 24 hr trend......10 percent wetter.
* 20-foot winds.......West winds 10 to 15 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........500 ft asl.
.FRIDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....78-86.
* 24 hr trend......Little change.
* Min humidity........50-60 percent.
* 24 hr trend......10 percent wetter.
* 20-foot winds.......West winds 10 to 15 mph.
* Chance of Thunder...1 percent.
* CWR.................0%.
* Marine layer........500 ft asl.
.FRIDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....55-60.
* Max humidity........80-90 percent.
* 20-foot winds.......West winds 10 to 15 mph.
* CWR.................0%.
.SATURDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....75-83.
* Min humidity........55-65 percent.
* 20-foot winds.......West winds 5 to 10 mph.
* CWR.................0%.
.EXTENDED...
.SATURDAY NIGHT...Mostly clear in the evening then becoming
mostly cloudy. West winds 10 to 20 mph. Lows in the mid 50s to
lower 60s.
.SUNDAY...Partly cloudy. West winds 10 to 20 mph. Lows in the mid
50s to lower 60s. Highs in the 70s.
.MONDAY...Partly cloudy. West winds 10 to 20 mph. Lows in the mid
50s to lower 60s. Highs in the 70s.
.TUESDAY...Partly cloudy. West winds 10 to 20 mph. Lows in the
mid 50s to lower 60s. Highs in the 70s.
$$
CAZ510-221015-
East Bay Interior Valleys-
303 PM PDT Thu Aug 21 2025
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....58-66.
* 24 hr trend......Little change.
* Max humidity........55-75 percent.
* 24 hr trend......10 percent wetter.
* 20-foot winds.......Southwest winds 10 to 20 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.FRIDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....91-99.
* 24 hr trend......10 degrees cooler.
* Min humidity........25-35 percent.
* 24 hr trend......Little change.
* 20-foot winds.......West winds 10 to 15 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.FRIDAY NIGHT...
* Sky/weather.........Mostly clear then becoming partly cloudy.
* Min temperature.....58-68.
* Max humidity........65-85 percent.
* 20-foot winds.......Southwest winds 10 to 20 mph.
* CWR.................0%.
.SATURDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....89-97.
* Min humidity........35-45 percent.
* 20-foot winds.......Southwest winds 10 to 15 mph.
* CWR.................0%.
.EXTENDED...
.SATURDAY NIGHT...Mostly clear. Southwest winds 10 to 20 mph.
Lows in the 50s to upper 60s.
.SUNDAY...Mostly clear. Southwest winds 15 to 25 mph. Lows in the
50s to upper 60s. Highs in the 80s.
.MONDAY...Mostly clear. West winds 10 to 20 mph. Lows in the 50s
to upper 60s. Highs in the 70s to upper 80s.
.TUESDAY...Mostly clear. West winds 10 to 20 mph. Lows in the 50s
to upper 60s. Highs in the 70s to upper 80s.
$$
CAZ513-221015-
Santa Clara Valley...including San Jose-
303 PM PDT Thu Aug 21 2025
.TONIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
* Min temperature.....57-62.
* 24 hr trend......Little change.
* Max humidity........60-80 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.
.FRIDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....90-98.
* 24 hr trend......Little change.
* Min humidity........25-35 percent.
* 24 hr trend......10 percent wetter.
* 20-foot winds.......Northwest winds 5 to 10 mph.
* Chance of Thunder...2 percent.
* CWR.................0%.
* Marine layer........None.
.FRIDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....58-63.
* Max humidity........70-80 percent.
* 20-foot winds.......Northwest winds 5 to 10 mph.
* CWR.................0%.
.SATURDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....87-95.
* Min humidity........35-45 percent.
* 20-foot winds.......Northwest winds 5 to 10 mph.
* CWR.................0%.
.EXTENDED...
.SATURDAY NIGHT...Mostly clear. Northwest winds 5 to 15 mph. Lows
near 60.
.SUNDAY...Mostly clear. Northwest winds 10 to 20 mph. Lows in the
mid 50s to lower 60s. Highs in the 80s to lower 90s.
.MONDAY...Partly cloudy. West winds 10 to 20 mph. Lows in the mid
50s to lower 60s. Highs in the 80s.
.TUESDAY...Mostly clear. Southwest winds 5 to 15 mph. Lows in the
mid 50s to lower 60s. Highs in the 80s.
$$
CAZ512-221015-
Santa Cruz Mountains-
303 PM PDT Thu Aug 21 2025
.TONIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
* Min temperature.....56-66 except 65-75 above 2000 feet.
* 24 hr trend......Little change.
* Max humidity........50-70 percent except 33-43 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.
.FRIDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....83-91.
* 24 hr trend......8 degrees cooler.
* Min humidity........40-50 percent.
* 24 hr trend......10 percent wetter.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 5 to 10 mph.
* Ridges/upr slopes....Northwest winds 5 to 10 mph.
* Chance of Thunder...1 percent.
* CWR.................0%.
* Marine layer........500 ft asl.
.FRIDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....57-67.
* Max humidity........60-80 percent except 43-53 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.
* CWR.................0%.
.SATURDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....81-89.
* Min humidity........45-55 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds up to 5 mph becoming 5 to 10
mph in the afternoon.
* Ridges/upr slopes....Southwest winds 5 to 10 mph.
* CWR.................0%.
.EXTENDED...
.SATURDAY NIGHT...Mostly clear. Northwest winds 5 to 15 mph. Lows
in the 50s to upper 60s.
.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.
.TUESDAY...Mostly clear. Southwest winds 5 to 15 mph. Lows in the
50s to mid 60s. Highs in the 70s to lower 80s.
$$
CAZ515-221015-
East Bay Hills-
303 PM PDT Thu Aug 21 2025
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....59-69.
* 24 hr trend......4 degrees cooler.
* Max humidity........53-63 percent except 23-33 percent above 2000
feet.
* 24 hr trend......15 percent drier.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 10 to 15 mph.
* Ridges/upr slopes....Southwest winds 10 to 15 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.FRIDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....83-91 except 90-98 above 2000 feet.
* 24 hr trend......5 degrees cooler.
* Min humidity........35-45 percent except 15-20 percent above 2000
feet.
* 24 hr trend......Little change.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 10 to 15 mph. Gusts up to 20
mph in the morning.
* Ridges/upr slopes....Southwest winds 10 to 15 mph.
* Chance of Thunder...1 percent.
* CWR.................0%.
* Marine layer........None.
.FRIDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....60-70 except 67-74 above 2000 feet.
* Max humidity........50-70 percent except 28-38 percent above 2000
feet.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 10 to 15 mph.
* Ridges/upr slopes....Southwest winds 10 to 15 mph.
* CWR.................0%.
.SATURDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....81-89 except 88-96 above 2000 feet.
* Min humidity........45-55 percent except 20-30 percent above 2000
feet.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 10 to 15 mph.
* Ridges/upr slopes....Southwest winds 10 to 15 mph. Gusts up to 25
mph in the morning.
* CWR.................0%.
.EXTENDED...
.SATURDAY NIGHT...Mostly clear. Southwest winds 10 to 20 mph.
Lows in the 60s to lower 70s.
.SUNDAY...Mostly clear. Southwest 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.
.TUESDAY...Mostly clear. West winds 10 to 20 mph. Lows in the 50s
to upper 60s. Highs in the upper 70s to mid 80s.
$$
CAZ514-221015-
Eastern Santa Clara Hills-
303 PM PDT Thu Aug 21 2025
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....61-70.
* 24 hr trend......Little change.
* Max humidity........35-45 percent.
* 24 hr trend......10 percent drier.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 5 to 10 mph.
* Ridges/upr slopes....West winds 5 to 10 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.FRIDAY...
* Sky/weather.........Sunny.
* Max temperature.....93-101.
* 24 hr trend......Little change.
* Min humidity........18-28 percent.
* 24 hr trend......Little change.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 5 to 10 mph.
* Ridges/upr slopes....Southwest winds 5 to 10 mph.
* Chance of Thunder...2 percent.
* CWR.................0%.
* Marine layer........None.
.FRIDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....63-68 except 69-74 above 2000 feet.
* Max humidity........35 percent except 25-30 percent above 2000
feet.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 5 to 10 mph.
* Ridges/upr slopes....West winds 5 to 10 mph.
* CWR.................0%.
.SATURDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....90-98.
* Min humidity........15 percent except 18-28 percent above 2000
feet.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 5 to 10 mph.
* Ridges/upr slopes....Southwest winds 5 to 10 mph.
* CWR.................0%.
.EXTENDED...
.SATURDAY NIGHT...Mostly clear. West winds 5 to 15 mph. Lows in
the 60s to lower 70s.
.SUNDAY...Mostly clear. Southwest winds 10 to 20 mph. Lows in the
60s to lower 70s. Highs in the mid 80s to lower 90s.
.MONDAY...Mostly clear. Southwest winds 5 to 15 mph. Lows in the
50s to upper 60s. Highs in the mid 80s to lower 90s.
.TUESDAY...Mostly clear. Southwest winds 5 to 15 mph. Lows in the
50s to upper 60s. Highs in the 80s to lower 90s.
$$
CAZ529-221015-
Northern Monterey Bay-
303 PM PDT Thu Aug 21 2025
.TONIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
* Min temperature.....54-59.
* 24 hr trend......Little change.
* Max humidity........80-90 percent except 70-80 percent from 500
to 1000 feet.
* 24 hr trend......10 percent drier.
* 20-foot winds.......Southeast winds 5 to 10 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........500 ft asl.
.FRIDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....77-85.
* 24 hr trend......Little change.
* Min humidity........55-65 percent.
* 24 hr trend......10 percent wetter.
* 20-foot winds.......Southeast winds 5 to 10 mph shifting to the
southwest 10 to 15 mph in the afternoon.
* Chance of Thunder...2 percent.
* CWR.................0%.
* Marine layer........500 ft asl.
.FRIDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....54-59.
* Max humidity........90 percent.
* 20-foot winds.......South winds 5 to 10 mph.
* CWR.................0%.
.SATURDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....73-81.
* Min humidity........60-70 percent.
* 20-foot winds.......South winds up to 5 mph shifting to the
southwest 10 to 15 mph in the afternoon.
* CWR.................0%.
.EXTENDED...
.SATURDAY NIGHT...Partly cloudy in the evening then becoming
mostly cloudy. South winds 5 to 15 mph. Lows in the upper 50s.
.SUNDAY...Partly cloudy. Patchy fog. Southwest winds 10 to
20 mph. Lows in the upper 50s. Highs in the 70s.
.MONDAY...Partly cloudy. Patchy fog. West winds 5 to 15 mph. Lows
in the upper 50s. Highs in the upper 60s to mid 70s.
.TUESDAY...Partly cloudy. Patchy fog. Southwest winds 5 to
15 mph. Lows in the upper 50s. Highs in the upper 60s to mid 70s.
$$
CAZ530-221015-
Southern Monterey Bay and Big Sur Coast-
303 PM PDT Thu Aug 21 2025
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....56-64.
* 24 hr trend......Little change.
* Max humidity........90 percent except Big Sur 50 percent.
* 24 hr trend......Little change.
* 20-foot winds.......Southwest winds 10 to 15 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........500 ft asl.
.FRIDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....67-72 except Big Sur 77-82.
* 24 hr trend......Little change.
* Min humidity........70 percent except Big Sur 50 percent.
* 24 hr trend......10 percent wetter.
* 20-foot winds.......West winds 10 to 15 mph.
* Chance of Thunder...1 percent.
* CWR.................0%.
* Marine layer........500 ft asl.
.FRIDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....55-60.
* Max humidity........90 percent except Big Sur 70 percent.
* 20-foot winds.......West winds 5 to 10 mph.
* CWR.................0%.
.SATURDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....66-71 except Big Sur 74-79.
* Min humidity........70 percent except Big Sur 60 percent.
* 20-foot winds.......West winds 5 to 10 mph.
* CWR.................0%.
.EXTENDED...
.SATURDAY NIGHT...Mostly cloudy. West winds 5 to 15 mph. Lows in
the 50s to mid 60s.
.SUNDAY...Mostly cloudy. West winds 10 to 20 mph. Lows in the 50s
to mid 60s. Highs in the mid 60s to lower 70s.
.MONDAY...Mostly cloudy. West winds 5 to 15 mph. Lows in the 50s
to lower 60s. Highs in the mid 60s to lower 70s.
.TUESDAY...Mostly cloudy. West winds 5 to 15 mph. Lows in the 50s
to lower 60s. Highs in the 60s to lower 70s.
$$
CAZ528-221015-
Northern Salinas Valley...Hollister Valley...and Carmel Valley-
303 PM PDT Thu Aug 21 2025
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....57-62.
* 24 hr trend......Little change.
* Max humidity........65-85 percent.
* 24 hr trend......10 percent wetter.
* 20-foot winds.......West winds 10 to 15 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.FRIDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....82-90.
* 24 hr trend......13 degrees warmer.
* Min humidity........40-50 percent.
* 24 hr trend......30 percent wetter.
* 20-foot winds.......Northwest winds 5 to 10 mph shifting to the
west 10 to 20 mph in the afternoon.
* Chance of Thunder...1 percent.
* CWR.................0%.
* Marine layer........None.
.FRIDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....56-61.
* Max humidity........70-90 percent.
* 20-foot winds.......Northwest winds 5 to 10 mph.
* CWR.................0%.
.SATURDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....79-87.
* Min humidity........45-55 percent.
* 20-foot winds.......Northwest winds 5 to 10 mph shifting to the
west 10 to 20 mph in the afternoon.
* CWR.................0%.
.EXTENDED...
.SATURDAY NIGHT...Mostly clear in the evening then becoming
partly cloudy. West winds 10 to 20 mph. Lows in the mid 50s to
lower 60s.
.SUNDAY...Partly cloudy. West winds 10 to 20 mph. Lows in the mid
50s to lower 60s. Highs in the 70s to mid 80s.
.MONDAY...Partly cloudy. West winds 15 to 25 mph. Lows in the mid
50s to lower 60s. Highs in the 70s to lower 80s.
.TUESDAY...Partly cloudy. West winds 10 to 20 mph. Lows in the
mid 50s. Highs in the 70s to lower 80s.
$$
CAZ516-221015-
Southern Salinas Valley...Arroyo Seco...and Lake San Antonio-
303 PM PDT Thu Aug 21 2025
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....58-63.
* 24 hr trend......Little change.
* Max humidity........50-70 percent.
* 24 hr trend......Little change.
* 20-foot winds.......Northwest winds 15 to 25 mph decreasing to 5
to 10 mph after midnight.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.FRIDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....96-104.
* 24 hr trend......Little change.
* Min humidity........18-28 percent.
* 24 hr trend......5 percent wetter.
* 20-foot winds.......Northwest winds 5 to 10 mph increasing to 10
to 20 mph in the afternoon.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.FRIDAY NIGHT...
* Sky/weather.........Mostly clear then becoming partly cloudy.
* Min temperature.....59-64.
* Max humidity........60-70 percent.
* 20-foot winds.......Northwest winds 10 to 20 mph decreasing to 5
to 10 mph after midnight.
* CWR.................0%.
.SATURDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....93-101.
* Min humidity........25-35 percent.
* 20-foot winds.......Northwest winds up to 5 mph increasing to
south 10 to 15 mph in the afternoon.
* CWR.................0%.
.EXTENDED...
.SATURDAY NIGHT...Mostly clear. Northwest winds 10 to 20 mph.
Lows in the upper 50s to mid 60s.
.SUNDAY...Mostly clear. Northwest winds 10 to 20 mph. Lows in the
50s to mid 60s. Highs in the 90s.
.MONDAY...Mostly clear. West winds 10 to 20 mph. Lows in the 50s
to lower 60s. Highs in the upper 80s to mid 90s.
.TUESDAY...Mostly clear. Southwest winds 10 to 20 mph. Lows in
the 50s. Highs in the mid 80s to lower 90s.
$$
CAZ517-221015-
Santa Lucia Mountains and Los Padres National Forest-
303 PM PDT Thu Aug 21 2025
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....62-72 except 72-78 above 2000 feet.
* 24 hr trend......5 degrees warmer.
* Max humidity........28-38 percent except 20-25 percent above 2000
feet.
* 24 hr trend......20 percent drier.
* 20-foot winds.......
* Valleys/lwr slopes...North winds 5 to 10 mph.
* Ridges/upr slopes....North winds 5 to 10 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.FRIDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....92-100.
* 24 hr trend......7 degrees warmer.
* Min humidity........23-33 percent.
* 24 hr trend......5 percent wetter.
* 20-foot winds.......
* Valleys/lwr slopes...Southeast winds 5 to 10 mph.
* Ridges/upr slopes....North winds 5 to 10 mph shifting to the
south 10 to 15 mph with gusts 20 to 30 mph in the afternoon.
* Chance of Thunder...1 percent.
* CWR.................0%.
* Marine layer........None.
.FRIDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....62-72 except 73-78 above 2000 feet.
* Max humidity........43-53 percent except 20-30 percent above 2000
feet.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 5 to 10 mph shifting to the east
up to 5 mph after midnight.
* Ridges/upr slopes....West winds 5 to 10 mph with gusts to 20 mph
shifting to the north 5 to 10 mph after midnight.
* CWR.................0%.
.SATURDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....88-96.
* Min humidity........23-33 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Southeast winds 5 to 10 mph.
* Ridges/upr slopes....South winds 5 to 10 mph.
* CWR.................0%.
.EXTENDED...
.SATURDAY NIGHT...Mostly clear. Southwest winds 5 to 15 mph. Lows
in the 60s to lower 70s.
.SUNDAY...Mostly clear. Northwest winds 5 to 15 mph. Lows in the
60s to lower 70s. Highs in the 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.
.TUESDAY...Mostly clear. West winds 5 to 15 mph. Lows in the 50s
to upper 60s. Highs in the 70s to mid 80s.
$$
CAZ518-221015-
Mountains of San Benito and Interior Monterey County including
Pinnacles National Park-
303 PM PDT Thu Aug 21 2025
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....64-74.
* 24 hr trend......Little change.
* Max humidity........33-43 percent.
* 24 hr trend......5 percent drier.
* 20-foot winds.......
* Valleys/lwr slopes...North winds 10 to 15 mph.
* Ridges/upr slopes....North winds 10 to 15 mph. Gusts up to 30 mph
in the evening.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.FRIDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....96-104.
* 24 hr trend......Little change.
* Min humidity........18-28 percent.
* 24 hr trend......Little change.
* 20-foot winds.......
* Valleys/lwr slopes...Southeast winds 5 to 10 mph.
* Ridges/upr slopes....Northwest winds 5 to 10 mph shifting to the
west 10 to 15 mph in the afternoon.
* Chance of Thunder...1 percent.
* CWR.................0%.
* Marine layer........None.
.FRIDAY NIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....65-75.
* Max humidity........38-48 percent.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 5 to 10 mph.
* Ridges/upr slopes....West winds 5 to 10 mph.
* CWR.................0%.
.SATURDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....94-102.
* Min humidity........18-28 percent.
* 20-foot winds.......
* Valleys/lwr slopes...South winds 5 to 10 mph.
* Ridges/upr slopes....South winds 5 to 10 mph.
* CWR.................0%.
.EXTENDED...
.SATURDAY NIGHT...Mostly clear. Northwest winds 5 to 15 mph. Lows
in the 60s to mid 70s.
.SUNDAY...Mostly clear. West winds 10 to 20 mph. Lows in the 60s
to mid 70s. Highs in the mid 80s to lower 90s.
.MONDAY...Mostly clear. West winds 10 to 20 mph. Lows in the 60s
to lower 70s. Highs in the 80s.
.TUESDAY...Mostly clear. Southwest winds 10 to 20 mph. Lows in
the 60s to lower 70s. Highs in the 80s.
$$
NOAA`S NWS on the web at www.weather.gov/sanfrancisco