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
836
FNUS56 KMTR 181218
FWFMTR
Fire Weather Planning Forecast for the San Francisco Bay Area and
Central California Coast
National Weather Service San Francisco Bay Area
518 AM PDT Tue Aug 18 2026
.DISCUSSION...Drier and slightly warmer interior conditions
continue through late week as high pressure expands into
California. The marine layer will gradually compress from 1500
feet to 1000 feet as high pressure strengthens with inland
stratus intrusions becoming less widespread by late week. This
will result in poor to moderate overnight recoveries (20-40%) and
poor daytime humidity retention (10-35%) above the marine layer
and across the interior Central Coast. Locations within the marine
layer will continue to see excellent overnight recoveries and fair
to excellent daytime humidity retention. Patchy fog and drizzle
are possible directly along the coastline each morning through
mid week. Diurnally breezy onshore winds continue across favored
mountain gaps/passes, along the coast, and across the highest
ridgelines.
Note : All winds are 20-foot Winds Unless otherwise specified.
Thunderstorms imply strong, gusty and erratic winds.
$$
CAZ505-190030-
Coastal North Bay...Including Point Reyes National Seashore-
518 AM PDT Tue Aug 18 2026
.TODAY...
* Sky/weather.........Mostly sunny. Patchy fog in the morning.
* Max temperature.....69-77.
* 24 hr trend......11 degrees warmer.
* Min humidity........80-90 percent.
* 24 hr trend......Little change.
* 20-foot winds.......West winds 5 to 10 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........1500 ft asl.
.TONIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
Patchy fog after midnight.
* Min temperature.....51-56.
* 24 hr trend......Little change.
* Max humidity........90-100 percent.
* 24 hr trend......Little change.
* 20-foot winds.......West winds 5 to 10 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........1200 ft asl.
.WEDNESDAY...
* Sky/weather.........Mostly sunny. Patchy fog in the morning.
* Max temperature.....66-74.
* Min humidity........75-85 percent.
* 20-foot winds.......West winds 5 to 10 mph.
* CWR.................0%.
.EXTENDED...
.WEDNESDAY NIGHT...Partly cloudy in the evening then becoming
mostly cloudy. West winds 10 to 20 mph. Lows in the 50s.
.THURSDAY...Mostly cloudy. West winds 10 to 20 mph. Lows in the
50s to lower 60s. Highs in the mid 60s to lower 70s.
.FRIDAY...Partly cloudy. Northwest winds 10 to 20 mph. Lows in
the 50s to lower 60s. Highs in the 60s to lower 70s.
.SATURDAY...Partly cloudy. Northwest winds 10 to 20 mph. Lows in
the 50s. Highs in the 60s to lower 70s.
$$
CAZ503-190030-
Sonoma Coastal Range-
518 AM PDT Tue Aug 18 2026
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....84-92.
* 24 hr trend......9 degrees warmer.
* Min humidity........45-55 percent.
* 24 hr trend......10 percent drier.
* 20-foot winds.......
* Ridges/upr slopes....Light winds becoming southwest 5 to 10 mph
in the afternoon.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........1500 ft asl.
.TONIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
* Min temperature.....56-62.
* 24 hr trend......Little change.
* Max humidity........70-90 percent.
* 24 hr trend......10 percent drier.
* 20-foot winds.......
* Ridges/upr slopes....Northwest winds 5 to 10 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........1200 ft asl.
.WEDNESDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....81-89.
* Min humidity........40-50 percent.
* 20-foot winds.......
* Ridges/upr slopes....Light winds becoming southwest 5 to 10 mph
in the afternoon.
* CWR.................0%.
.EXTENDED...
.WEDNESDAY NIGHT...Mostly clear in the evening then becoming
partly cloudy. Northwest winds 5 to 15 mph. Lows in the 50s to
lower 60s.
.THURSDAY...Partly cloudy. Northwest winds 5 to 15 mph. Lows in
the 50s to lower 60s. Highs in the 70s to upper 80s.
.FRIDAY...Mostly clear. Northwest winds 5 to 15 mph. Lows in the
50s to lower 60s. Highs in the 70s to lower 80s.
.SATURDAY...Mostly clear. Northwest winds 5 to 15 mph. Lows in
the 40s to upper 50s. Highs in the mid 70s to lower 80s.
$$
CAZ502-190030-
Marin Coastal Range-
518 AM PDT Tue Aug 18 2026
.TODAY...
* Sky/weather.........Mostly sunny. Patchy fog in the morning.
* Max temperature.....79-87.
* 24 hr trend......9 degrees warmer.
* Min humidity........50-60 percent except 40-50 percent above 2000
feet.
* 24 hr trend......Little change.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 5 to 10 mph.
* Ridges/upr slopes....West winds 5 to 10 mph. Gusts up to 20 mph
in the afternoon.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........1500 ft asl.
.TONIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
Patchy fog after midnight.
* Min temperature.....51-56 except 58-63 above 2000 feet.
* 24 hr trend......Little change.
* Max humidity........90-100 percent except 50-60 percent above
2000 feet.
* 24 hr trend......Little change.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 5 to 10 mph.
* Ridges/upr slopes....West winds 5 to 10 mph. Gusts up to 20 mph
in the evening.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........1200 ft asl.
.WEDNESDAY...
* Sky/weather.........Mostly sunny. Patchy fog early in the
morning.
* Max temperature.....75-83.
* Min humidity........50-60 percent except 40-50 percent above 2000
feet.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 5 to 10 mph.
* Ridges/upr slopes....West winds 5 to 10 mph. Gusts up to 20 mph
in the afternoon.
* CWR.................0%.
.EXTENDED...
.WEDNESDAY NIGHT...Mostly clear in the evening then becoming
mostly cloudy. West winds 10 to 20 mph. Lows in the 50s to mid
60s.
.THURSDAY...Mostly cloudy. West winds 10 to 20 mph. Lows in the
50s to mid 60s. Highs in the 70s.
.FRIDAY...Partly cloudy. West winds 10 to 20 mph. Lows in the 50s
to mid 60s. Highs in the 60s to upper 70s.
.SATURDAY...Mostly clear. West winds 5 to 15 mph. Lows in the 50s
to lower 60s. Highs in the 70s.
$$
CAZ506-190030-
North Bay Interior Valleys-
518 AM PDT Tue Aug 18 2026
.TODAY...
* Sky/weather.........Mostly sunny. Patchy fog in the morning.
* Max temperature.....83-91.
* 24 hr trend......7 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........1500 ft asl.
.TONIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
Patchy fog after midnight.
* Min temperature.....51-56.
* 24 hr trend......Little change.
* Max humidity........90-100 percent.
* 24 hr trend......Little change.
* 20-foot winds.......Southwest winds 5 to 10 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........1200 ft asl.
.WEDNESDAY...
* Sky/weather.........Partly sunny then becoming sunny. Areas of
fog early in the morning. Patchy fog late in the morning.
* Max temperature.....81-89.
* Min humidity........45-55 percent.
* 20-foot winds.......Southwest winds 5 to 10 mph.
* CWR.................0%.
.EXTENDED...
.WEDNESDAY NIGHT...Mostly clear in the evening then becoming
partly cloudy. Southwest winds 5 to 15 mph. Lows in the 50s.
.THURSDAY...Mostly cloudy. Southwest winds 5 to 15 mph. Lows in
the 50s to lower 60s. Highs in the 70s to mid 80s.
.FRIDAY...Partly cloudy. West winds 5 to 15 mph. Lows in the 50s
to lower 60s. Highs in the mid 70s to lower 80s.
.SATURDAY...Mostly clear. Patchy fog. West winds 5 to 15 mph.
Lows in the 50s. Highs in the 70s.
$$
CAZ504-190030-
North Bay Interior Mountains-
518 AM PDT Tue Aug 18 2026
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....87-95.
* 24 hr trend......16 degrees warmer.
* Min humidity........35-45 percent.
* 24 hr trend......10 percent wetter.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds up to 5 mph shifting to the
south 5 to 10 mph in the afternoon.
* Ridges/upr slopes....West winds up to 5 mph shifting to the south
5 to 10 mph in the afternoon.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........1500 ft asl.
.TONIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
* Min temperature.....56-66.
* 24 hr trend......Little change.
* Max humidity........60-80 percent.
* 24 hr trend......Little change.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 5 to 10 mph shifting to the
northwest up to 5 mph after midnight.
* Ridges/upr slopes....West winds 5 to 10 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........1200 ft asl.
.WEDNESDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....85-93.
* Min humidity........35-45 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Southwest winds 5 to 10 mph.
* Ridges/upr slopes....Southwest winds 5 to 10 mph. Gusts up to 20
mph in the afternoon.
* CWR.................0%.
.EXTENDED...
.WEDNESDAY NIGHT...Mostly clear. Southwest winds 5 to 15 mph.
Lows in the 50s to upper 60s.
.THURSDAY...Partly cloudy. Southwest winds 5 to 15 mph. Lows in
the 50s to upper 60s. Highs in the 80s to lower 90s.
.FRIDAY...Partly cloudy. Southwest winds 5 to 15 mph. Lows in the
50s to upper 60s. Highs in the 70s to upper 80s.
.SATURDAY...Mostly clear. Southwest winds 5 to 15 mph. Lows in
the 50s to mid 60s. Highs in the upper 70s to mid 80s.
$$
CAZ006-190030-
San Francisco-
518 AM PDT Tue Aug 18 2026
.TODAY...
* Sky/weather.........Mostly cloudy then becoming mostly sunny.
* Max temperature.....64-72.
* 24 hr trend......Little change.
* Min humidity........75-85 percent.
* 24 hr trend......Little change.
* 20-foot winds.......West winds 5 to 10 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........1500 ft asl.
.TONIGHT...
* Sky/weather.........Mostly cloudy.
* Min temperature.....54-59.
* 24 hr trend......Little change.
* Max humidity........90-100 percent.
* 24 hr trend......Little change.
* 20-foot winds.......West winds 10 to 15 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........1200 ft asl.
.WEDNESDAY...
* Sky/weather.........Mostly cloudy then becoming mostly sunny.
* Max temperature.....63-71.
* Min humidity........75-85 percent.
* 20-foot winds.......Southwest winds 10 to 15 mph.
* CWR.................0%.
.EXTENDED...
.WEDNESDAY NIGHT...Mostly cloudy. West winds 10 to 20 mph. Lows
in the upper 50s.
.THURSDAY...Mostly cloudy. West winds 10 to 20 mph. Lows in the
upper 50s. Highs in the 60s.
.FRIDAY...Mostly 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.
$$
CAZ509-190030-
San Francisco Peninsula Coast-
518 AM PDT Tue Aug 18 2026
.TODAY...
* Sky/weather.........Partly sunny. Patchy fog in the morning.
* Max temperature.....66-74.
* 24 hr trend......4 degrees warmer.
* Min humidity........75-85 percent.
* 24 hr trend......Little change.
* 20-foot winds.......Northwest winds 5 to 10 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........1500 ft asl.
.TONIGHT...
* Sky/weather.........Mostly cloudy. Patchy fog after midnight.
* Min temperature.....51-56.
* 24 hr trend......Little change.
* Max humidity........90-100 percent.
* 24 hr trend......Little change.
* 20-foot winds.......West winds 5 to 10 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........1200 ft asl.
.WEDNESDAY...
* Sky/weather.........Mostly cloudy then becoming mostly sunny.
Patchy fog early in the morning.
* Max temperature.....64-72.
* Min humidity........75-85 percent.
* 20-foot winds.......West winds 5 to 10 mph.
* CWR.................0%.
.EXTENDED...
.WEDNESDAY NIGHT...Mostly cloudy. Northwest winds 5 to 15 mph.
Lows in the 50s.
.THURSDAY...Mostly cloudy. Northwest winds 10 to 20 mph. Lows in
the 50s. Highs in the 60s to lower 70s.
.FRIDAY...Mostly cloudy. Northwest winds 10 to 20 mph. Lows in
the 50s. Highs in the 60s.
.SATURDAY...Mostly cloudy. Northwest winds 10 to 20 mph. Lows in
the 50s. Highs in the 60s.
$$
CAZ508-190030-
San Francisco Bay Shoreline-
518 AM PDT Tue Aug 18 2026
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....75-83.
* 24 hr trend......5 degrees warmer.
* Min humidity........60-70 percent.
* 24 hr trend......Little change.
* 20-foot winds.......West winds 5 to 10 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........1500 ft asl.
.TONIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
* Min temperature.....54-59.
* 24 hr trend......Little change.
* Max humidity........90-100 percent.
* 24 hr trend......Little change.
* 20-foot winds.......West winds 5 to 10 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........1200 ft asl.
.WEDNESDAY...
* Sky/weather.........Mostly cloudy then becoming mostly sunny.
* Max temperature.....73-81.
* Min humidity........60-70 percent.
* 20-foot winds.......West winds 5 to 10 mph.
* CWR.................0%.
.EXTENDED...
.WEDNESDAY NIGHT...Mostly clear in the evening then becoming
mostly cloudy. West winds 5 to 15 mph. Lows in the mid 50s to
lower 60s.
.THURSDAY...Mostly cloudy. West winds 10 to 20 mph. Lows in the
mid 50s to lower 60s. Highs in the 60s to upper 70s.
.FRIDAY...Partly cloudy. West winds 10 to 20 mph. Lows in the 50s
to lower 60s. Highs in the upper 60s to mid 70s.
.SATURDAY...Partly cloudy. West winds 5 to 15 mph. Lows in the
50s. Highs in the upper 60s to mid 70s.
$$
CAZ510-190030-
East Bay Interior Valleys-
518 AM PDT Tue Aug 18 2026
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....86-94.
* 24 hr trend......12 degrees warmer.
* Min humidity........35-45 percent.
* 24 hr trend......10 percent drier.
* 20-foot winds.......West winds 10 to 15 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........1500 ft asl.
.TONIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
* Min temperature.....57-63.
* 24 hr trend......Little change.
* Max humidity........70-90 percent.
* 24 hr trend......10 percent drier.
* 20-foot winds.......Southwest winds 10 to 15 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........1200 ft asl.
.WEDNESDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....83-91.
* Min humidity........35-45 percent.
* 20-foot winds.......West winds 5 to 10 mph.
* CWR.................0%.
.EXTENDED...
.WEDNESDAY NIGHT...Mostly clear. Southwest winds 10 to 20 mph.
Lows in the 50s to mid 60s.
.THURSDAY...Partly cloudy. Southwest winds 10 to 20 mph. Lows in
the 50s to mid 60s. Highs in the upper 70s to mid 80s.
.FRIDAY...Partly cloudy. Southwest winds 10 to 20 mph. Lows in
the 50s to mid 60s. Highs in the 70s to mid 80s.
.SATURDAY...Mostly clear. Southwest winds 10 to 20 mph. Lows in
the mid 50s to lower 60s. Highs in the 70s to mid 80s.
$$
CAZ513-190030-
Santa Clara Valley...including San Jose-
518 AM PDT Tue Aug 18 2026
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....83-91.
* 24 hr trend......4 degrees warmer.
* Min humidity........40-50 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........1500 ft asl.
.TONIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
* Min temperature.....54-59.
* 24 hr trend......Little change.
* Max humidity........80-90 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........1200 ft asl.
.WEDNESDAY...
* Sky/weather.........Partly sunny.
* Max temperature.....83-91.
* Min humidity........35-45 percent.
* 20-foot winds.......Light winds becoming west 5 to 10 mph in the
afternoon.
* CWR.................0%.
.EXTENDED...
.WEDNESDAY NIGHT...Mostly clear in the evening then becoming
partly cloudy. West winds 5 to 15 mph. Lows in the mid 50s to
lower 60s.
.THURSDAY...Partly cloudy. West winds 5 to 15 mph. Lows in the
mid 50s to lower 60s. Highs in the 70s to upper 80s.
.FRIDAY...Partly cloudy. Northwest winds 5 to 15 mph. Lows in the
mid 50s to lower 60s. Highs in the upper 70s to mid 80s.
.SATURDAY...Mostly clear. West winds 5 to 15 mph. Lows in the mid
to upper 50s. Highs in the upper 70s to mid 80s.
$$
CAZ512-190030-
Santa Cruz Mountains-
518 AM PDT Tue Aug 18 2026
.TODAY...
* Sky/weather.........Mostly sunny. Patchy fog in the morning.
* Max temperature.....79-87.
* 24 hr trend......7 degrees warmer.
* Min humidity........45-55 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 afternoon.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........1500 ft asl.
.TONIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
* Min temperature.....55-65.
* 24 hr trend......Little change.
* Max humidity........63-83 percent except 43-53 percent above 2000
feet.
* 24 hr trend......10 percent drier.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds up to 5 mph in the evening
becoming downvalley 2 to 6 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........1200 ft asl.
.WEDNESDAY...
* Sky/weather.........Mostly sunny. Patchy fog early in the
morning.
* Max temperature.....77-85.
* Min humidity........45-55 percent except 35-45 percent above 2000
feet.
* 20-foot winds.......
* Valleys/lwr slopes...Upvalley 3 to 7 mph becoming northwest up to
5 mph in the afternoon.
* Ridges/upr slopes....Light winds becoming west 5 to 10 mph and
gusts to around 20 mph in the afternoon.
* CWR.................0%.
.EXTENDED...
.WEDNESDAY NIGHT...Mostly clear in the evening then becoming
partly cloudy. Northwest winds 5 to 15 mph. Lows in the 50s to
upper 60s.
.THURSDAY...Partly cloudy. Northwest winds 5 to 15 mph. Lows in
the 50s to upper 60s. Highs in the 70s to lower 80s.
.FRIDAY...Partly cloudy. Northwest winds 5 to 15 mph. Lows in the
50s to mid 60s. Highs in the 60s to upper 70s.
.SATURDAY...Mostly clear. Northwest winds 5 to 15 mph. Lows in
the 50s to lower 60s. Highs in the 70s.
$$
CAZ515-190030-
East Bay Hills-
518 AM PDT Tue Aug 18 2026
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....84-92.
* 24 hr trend......5 degrees warmer.
* Min humidity........45-55 percent except 20-30 percent above 2000
feet.
* 24 hr trend......Little change.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 5 to 10 mph with gusts 20 to 30
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........1500 ft asl.
.TONIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
* Min temperature.....56-66.
* 24 hr trend......Little change.
* Max humidity........58-78 percent except 33-43 percent above 2000
feet.
* 24 hr trend......10 percent drier.
* 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.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........1200 ft asl.
.WEDNESDAY...
* Sky/weather.........Partly sunny then becoming sunny.
* Max temperature.....76-84 except 83-91 above 2000 feet.
* Min humidity........45-55 percent except 20-30 percent above 2000
feet.
* 20-foot winds.......
* Valleys/lwr slopes...West winds 5 to 10 mph with gusts 20 to 30
mph.
* Ridges/upr slopes....West winds 5 to 10 mph with gusts 20 to 30
mph.
* CWR.................0%.
.EXTENDED...
.WEDNESDAY NIGHT...Mostly clear in the evening then becoming
partly cloudy. Southwest winds 10 to 20 mph. Lows in the 50s to
upper 60s.
.THURSDAY...Partly cloudy. Southwest winds 10 to 20 mph. Lows in
the 50s to upper 60s. Highs in the 70s to mid 80s.
.FRIDAY...Partly cloudy. Southwest winds 10 to 20 mph. Lows in
the 50s to mid 60s. Highs in the 70s to lower 80s.
.SATURDAY...Mostly clear. Southwest winds 10 to 20 mph. Lows in
the 50s to lower 60s. Highs in the mid 70s to lower 80s.
$$
CAZ514-190030-
Eastern Santa Clara Hills-
518 AM PDT Tue Aug 18 2026
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....86-94.
* 24 hr trend......6 degrees warmer.
* Min humidity........15 percent except 18-28 percent above 2000
feet.
* 24 hr trend......20 percent drier.
* 20-foot winds.......
* Valleys/lwr slopes...Upvalley 3 to 7 mph becoming west 5 to 10
mph in the afternoon.
* Ridges/upr slopes....West winds 5 to 10 mph. Gusts up to 20 mph
in the afternoon.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........1500 ft asl.
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....55-65.
* 24 hr trend......Little change.
* Max humidity........35 percent except 40-50 percent above 2000
feet.
* 24 hr trend......10 percent drier.
* 20-foot winds.......
* Valleys/lwr slopes...West winds up to 5 mph in the evening
becoming downvalley 2 to 6 mph.
* Ridges/upr slopes....West winds 5 to 10 mph. Gusts up to 20 mph
in the evening.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.WEDNESDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....85-93.
* Min humidity........15 percent except 18-28 percent above 2000
feet.
* 20-foot winds.......
* Valleys/lwr slopes...Upvalley 3 to 7 mph becoming southwest 5 to
10 mph in the afternoon.
* Ridges/upr slopes....West winds 5 to 10 mph. Gusts up to 20 mph
in the afternoon.
* CWR.................0%.
.EXTENDED...
.WEDNESDAY NIGHT...Mostly clear. West winds 5 to 15 mph. Lows in
the 50s to upper 60s.
.THURSDAY...Partly cloudy. West winds 5 to 15 mph. Lows in the
50s to upper 60s. Highs in the 80s to lower 90s.
.FRIDAY...Partly cloudy. West winds 5 to 15 mph. Lows in the 50s
to upper 60s. Highs in the upper 70s to mid 80s.
.SATURDAY...Mostly clear. West winds 5 to 15 mph. Lows in the 50s
to mid 60s. Highs in the upper 70s to mid 80s.
$$
CAZ529-190030-
Northern Monterey Bay-
518 AM PDT Tue Aug 18 2026
.TODAY...
* Sky/weather.........Mostly sunny. Patchy fog in the morning.
* Max temperature.....72-80.
* 24 hr trend......6 degrees warmer.
* Min humidity........65-75 percent.
* 24 hr trend......Little change.
* 20-foot winds.......Southwest winds 5 to 10 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........1500 ft asl.
.TONIGHT...
* Sky/weather.........Mostly cloudy. Patchy fog after midnight.
* Min temperature.....53-58.
* 24 hr trend......Little change.
* Max humidity........90-100 percent.
* 24 hr trend......Little change.
* 20-foot winds.......South winds 5 to 10 mph shifting to the
northwest up to 5 mph after midnight.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........1200 ft asl.
.WEDNESDAY...
* Sky/weather.........Mostly cloudy then becoming mostly sunny.
Patchy fog early in the morning. Areas of fog late in the
morning, then patchy fog late in the morning.
* Max temperature.....71-79.
* Min humidity........65-75 percent.
* 20-foot winds.......Light winds becoming southwest 10 to 15 mph
in the afternoon.
* CWR.................0%.
.EXTENDED...
.WEDNESDAY NIGHT...Partly cloudy in the evening then becoming
mostly cloudy. Patchy fog. West winds 5 to 15 mph. Lows in the
mid to upper 50s.
.THURSDAY...Mostly cloudy. West winds 5 to 15 mph. Lows in the
mid to upper 50s. Highs in the 70s.
.FRIDAY...Mostly cloudy. Northwest winds 10 to 20 mph. Lows in
the mid to upper 50s. Highs in the 70s.
.SATURDAY...Partly cloudy. Patchy fog. West winds 5 to 15 mph.
Lows in the mid 50s. Highs in the upper 60s to mid 70s.
$$
CAZ530-190030-
Southern Monterey Bay and Big Sur Coast-
518 AM PDT Tue Aug 18 2026
.TODAY...
* Sky/weather.........Partly sunny. Patchy fog in the morning.
* Max temperature.....65-70 except Big Sur 74-79.
* 24 hr trend......Little change.
* Min humidity........80 percent except Big Sur 60 percent.
* 24 hr trend......10 percent drier.
* 20-foot winds.......West winds 5 to 10 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........1500 ft asl.
.TONIGHT...
* Sky/weather.........Mostly cloudy.
* Min temperature.....54-59.
* 24 hr trend......Little change.
* Max humidity........90 percent except Big Sur 70 percent.
* 24 hr trend......10 percent drier.
* 20-foot winds.......West winds 5 to 10 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........1200 ft asl.
.WEDNESDAY...
* Sky/weather.........Partly sunny. Patchy fog early in the
morning.
* Max temperature.....64-69 except Big Sur 74-79.
* Min humidity........80 percent except Big Sur 50 percent.
* 20-foot winds.......West winds 5 to 10 mph.
* CWR.................0%.
.EXTENDED...
.WEDNESDAY NIGHT...Mostly cloudy. West winds 5 to 15 mph. Lows in
the 50s to mid 60s.
.THURSDAY...Mostly cloudy. West winds 5 to 15 mph. Lows in the
50s to mid 60s. Highs in the 60s to mid 70s.
.FRIDAY...Mostly cloudy. West winds 10 to 20 mph. Lows in the 50s
to mid 60s. Highs in the 60s to mid 70s.
.SATURDAY...Partly cloudy. West winds 10 to 20 mph. Lows in the
50s to lower 60s. Highs in the 60s to lower 70s.
$$
CAZ528-190030-
Northern Salinas Valley...Hollister Valley...and Carmel Valley-
518 AM PDT Tue Aug 18 2026
.TODAY...
* Sky/weather.........Mostly sunny. Patchy fog in the morning.
* Max temperature.....76-84.
* 24 hr trend......5 degrees cooler.
* Min humidity........50-60 percent.
* 24 hr trend......10 percent drier.
* 20-foot winds.......West winds up to 5 mph increasing to
northwest 10 to 15 mph in the afternoon.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........1500 ft asl.
.TONIGHT...
* Sky/weather.........Mostly cloudy.
* Min temperature.....52-57.
* 24 hr trend......Little change.
* Max humidity........90-100 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........1200 ft asl.
.WEDNESDAY...
* Sky/weather.........Mostly cloudy then becoming mostly sunny.
* Max temperature.....75-83.
* Min humidity........50-60 percent.
* 20-foot winds.......Northwest winds up to 5 mph increasing to
west 10 to 20 mph in the afternoon.
* CWR.................0%.
.EXTENDED...
.WEDNESDAY NIGHT...Partly cloudy in the evening then becoming
mostly cloudy. West winds 10 to 20 mph. Lows in the 50s.
.THURSDAY...Mostly cloudy. West winds 10 to 20 mph. Lows in the
50s. Highs in the 70s to lower 80s.
.FRIDAY...Mostly cloudy. West winds 10 to 20 mph. Lows in the
50s. Highs in the 70s to lower 80s.
.SATURDAY...Partly cloudy. West winds 10 to 20 mph. Lows in the
50s. Highs in the 70s.
$$
CAZ516-190030-
Southern Salinas Valley...Arroyo Seco...and Lake San Antonio-
518 AM PDT Tue Aug 18 2026
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....89-97.
* 24 hr trend......8 degrees warmer.
* Min humidity........30-40 percent.
* 24 hr trend......10 percent drier.
* 20-foot winds.......Northwest winds up to 5 mph increasing to 10
to 15 mph in the afternoon.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........1500 ft asl.
.TONIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
* Min temperature.....54-59.
* 24 hr trend......Little change.
* Max humidity........70-90 percent.
* 24 hr trend......10 percent drier.
* 20-foot winds.......Northwest winds 10 to 15 mph.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........None.
.WEDNESDAY...
* Sky/weather.........Partly sunny then becoming sunny.
* Max temperature.....89-97.
* Min humidity........28-38 percent.
* 20-foot winds.......Northwest winds up to 5 mph increasing to 10
to 15 mph in the afternoon.
* CWR.................0%.
.EXTENDED...
.WEDNESDAY NIGHT...Mostly clear in the evening then becoming
partly cloudy. Northwest winds 10 to 20 mph. Lows in the 50s to
lower 60s.
.THURSDAY...Partly cloudy. Northwest winds 10 to 20 mph. Lows in
the 50s to lower 60s. Highs in the upper 80s to mid 90s.
.FRIDAY...Partly cloudy. Northwest winds 10 to 20 mph. Lows in
the 50s to lower 60s. Highs in the mid 80s to lower 90s.
.SATURDAY...Mostly clear. Northwest winds 10 to 20 mph. Lows in
the 40s to upper 50s. Highs in the 80s to lower 90s.
$$
CAZ517-190030-
Santa Lucia Mountains and Los Padres National Forest-
518 AM PDT Tue Aug 18 2026
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....88-96.
* 24 hr trend......15 degrees warmer.
* Min humidity........30-40 percent.
* 24 hr trend......10 percent drier.
* 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........1500 ft asl.
.TONIGHT...
* Sky/weather.........Partly cloudy then becoming mostly cloudy.
* Min temperature.....58-68 except 68-74 above 2000 feet.
* 24 hr trend......Little change.
* Max humidity........40-50 percent except 23-33 percent above 2000
feet.
* 24 hr trend......35 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 25
mph in the evening.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........1200 ft asl.
.WEDNESDAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....87-95.
* Min humidity........28-38 percent.
* 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.
* CWR.................0%.
.EXTENDED...
.WEDNESDAY NIGHT...Mostly clear in the evening then becoming
partly cloudy. Northwest winds 5 to 15 mph. Lows in the 60s to
lower 70s.
.THURSDAY...Partly cloudy. Northwest winds 5 to 15 mph. Lows in
the 60s to lower 70s. Highs in the 80s.
.FRIDAY...Partly cloudy. Northwest winds 5 to 15 mph. Lows in the
60s to lower 70s. Highs in the upper 70s to mid 80s.
.SATURDAY...Mostly clear. Northwest winds 5 to 15 mph. Lows in
the 50s to mid 60s. Highs in the 70s to mid 80s.
$$
CAZ518-190030-
Mountains of San Benito and Interior Monterey County including
Pinnacles National Park-
518 AM PDT Tue Aug 18 2026
.TODAY...
* Sky/weather.........Mostly sunny.
* Max temperature.....88-96.
* 24 hr trend......4 degrees warmer.
* Min humidity........25-35 percent.
* 24 hr trend......10 percent drier.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 5 to 10 mph.
* Ridges/upr slopes....Northwest winds 5 to 10 mph. Gusts up to 30
mph in the afternoon.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........1500 ft asl.
.TONIGHT...
* Sky/weather.........Partly cloudy.
* Min temperature.....58-68.
* 24 hr trend......Little change.
* Max humidity........43-53 percent except 33-43 percent above 2000
feet.
* 24 hr trend......30 percent drier.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 5 to 10 mph. Gusts up to 20
mph in the evening.
* Ridges/upr slopes....Northwest winds 5 to 10 mph. Gusts up to 30
mph in the evening.
* Chance of Thunder...0 percent.
* CWR.................0%.
* Marine layer........1200 ft asl.
.WEDNESDAY...
* Sky/weather.........Partly sunny then becoming sunny.
* Max temperature.....88-96.
* Min humidity........23-33 percent.
* 20-foot winds.......
* Valleys/lwr slopes...Northwest winds 5 to 10 mph. Gusts up to 20
mph in the afternoon.
* Ridges/upr slopes....Northwest winds 5 to 10 mph. Gusts up to 30
mph in the afternoon.
* CWR.................0%.
.EXTENDED...
.WEDNESDAY NIGHT...Mostly clear. Northwest winds 5 to 15 mph.
Lows in the 60s to lower 70s.
.THURSDAY...Partly cloudy. Northwest winds 5 to 15 mph. Lows in
the 60s to lower 70s. Highs in the 80s.
.FRIDAY...Partly cloudy. Northwest winds 10 to 20 mph. Lows in
the 50s to upper 60s. Highs in the 70s to upper 80s.
.SATURDAY...Mostly clear. Northwest winds 5 to 15 mph. Lows in
the 50s to upper 60s. Highs in the upper 70s to mid 80s.
$$
NOAA`S NWS on the web at www.weather.gov/sanfrancisco