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Cotati, California 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Cotati CA
National Weather Service Forecast for: Cotati CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 12:23 pm PDT Jul 11, 2025
 
This
Afternoon
This Afternoon: Sunny, with a high near 87. West southwest wind 3 to 7 mph.
Sunny

Tonight

Tonight: Patchy fog after 1am.  Otherwise, increasing clouds, with a low around 52. Light west southwest wind.
Mostly Clear
then Patchy
Fog
Saturday

Saturday: Areas of fog before 9am.  Otherwise, partly sunny, then gradually becoming sunny, with a high near 80. Calm wind becoming west southwest 5 to 8 mph in the afternoon.
Areas Fog
then Sunny
Saturday
Night
Saturday Night: Patchy fog after 11pm.  Otherwise, increasing clouds, with a low around 52. Light west southwest wind.
Patchy Fog

Sunday

Sunday: Areas of fog before 9am.  Otherwise, mostly sunny, with a high near 78. Calm wind becoming west southwest around 6 mph in the afternoon.
Areas Fog
then Sunny
Sunday
Night
Sunday Night: Areas of fog after 11pm.  Otherwise, partly cloudy, with a low around 52.
Areas Fog

Monday

Monday: Areas of fog before 9am.  Otherwise, mostly sunny, with a high near 80.
Areas Fog
then Sunny
Monday
Night
Monday Night: Patchy fog after 11pm.  Otherwise, partly cloudy, with a low around 52.
Patchy Fog

Tuesday

Tuesday: Areas of fog before 10am.  Otherwise, mostly sunny, with a high near 75.
Areas Fog
then Sunny
Hi 87 °F Lo 52 °F Hi 80 °F Lo 52 °F Hi 78 °F Lo 52 °F Hi 80 °F Lo 52 °F Hi 75 °F

 

This Afternoon
 
Sunny, with a high near 87. West southwest wind 3 to 7 mph.
Tonight
 
Patchy fog after 1am. Otherwise, increasing clouds, with a low around 52. Light west southwest wind.
Saturday
 
Areas of fog before 9am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 80. Calm wind becoming west southwest 5 to 8 mph in the afternoon.
Saturday Night
 
Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 52. Light west southwest wind.
Sunday
 
Areas of fog before 9am. Otherwise, mostly sunny, with a high near 78. Calm wind becoming west southwest around 6 mph in the afternoon.
Sunday Night
 
Areas of fog after 11pm. Otherwise, partly cloudy, with a low around 52.
Monday
 
Areas of fog before 9am. Otherwise, mostly sunny, with a high near 80.
Monday Night
 
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 52.
Tuesday
 
Areas of fog before 10am. Otherwise, mostly sunny, with a high near 75.
Tuesday Night
 
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 53.
Wednesday
 
Areas of fog. Otherwise, partly sunny, with a high near 73.
Wednesday Night
 
Areas of fog. Otherwise, partly cloudy, with a low around 52.
Thursday
 
Areas of fog. Otherwise, mostly sunny, with a high near 74.

 

Forecast from NOAA-NWS for Cotati CA.

Weather Forecast Discussion
890
FXUS66 KMTR 111727
AFDMTR

Area Forecast Discussion
National Weather Service San Francisco CA
1027 AM PDT Fri Jul 11 2025

...New AVIATION, MARINE...

.KEY MESSAGES...
Updated at 305 AM PDT Fri Jul 11 2025

 - Moderate HeatRisk for portions of the East and South Bay on Friday
   with localized pockets elsewhere across the North Bay and
   Central Coast.

 - Localized elevated fire weather threat continues across higher
   elevations.

 - Gradual cooling trend this weekend and into next week.

&&

.UPDATE...
Issued at 841 AM PDT Fri Jul 11 2025

Did a quick update to the Max T for today. Based on the how the
forecast did yesterday, a few degree cooler than observations, and
based on the 24 hour temp change so far this morning, running a
few degrees warmer than this time yesterday, opted to bring
today`s Max T up by a few degree. These increases were held to
areas away from the immediate coast. Weak onshore flow and cool
SSTs will keep temps in directly water adjacent areas moderated.
Even with the slight bump up in temp, there remains no need for
issuance of a heat advisory for today. That said, Livermore had a
Max T of 80 on July 8th and 99 yesterday. Today should be about
the same as yesterday. A jump of 20 degrees in 2 days can take a
tool on the body. Treat this heat seriously and stay hydrated and
out of the sun as much as possible.

&&

.SHORT TERM...
Issued at 305 AM PDT Fri Jul 11 2025
(Today and tonight)

Satellite imagery and profiler data show that the marine layer
remains compressed around 1000 feet, with stratus confined to the
coastal areas and in the Salinas Valley. Expect this to remain hold
with stratus retreating to the coast by mid to late morning. Another
warm and dry day is then on tap, with high temperatures peaking in
the upper 80s to 90s for most interior locations. Conditions will be
cooler by the coast or where influenced by stratus, with highs
varying from the upper 50s to low 70s.

&&

.LONG TERM...
Issued at 305 AM PDT Fri Jul 11 2025
(Saturday through Thursday)

No major changes to the forecast this period as upper level ridging
looks to hold into early next week. That means we can expect to see
a fairly repetitive forecast, with onshore flow leading to cooling
trend this weekend and into early next week. Upper level troughing
looks to dip back into the forecast mid week, which should usher in
additional cooling and potentially deepen the marine layer. Expect
daily cloudy nights and mornings, with clouds receding to the coast
each afternoon.

&&

.AVIATION...
(18Z TAFS)
Issued at 1026 AM PDT Fri Jul 11 2025

Currently VFR at all terminals with the exception of HAF and MRY.
Very similar forecast on tap for tomorrow as what occurred Thursday
morning as the region begins to lose the influence of the ridge. As
conditions begin to cool and relative humidity increases, more
terminals (APC and STS) can expect the return of sub-VFR ceilings
tonight as what occurred last night. The marine layer is currently
being observed at 1,500 feet with little variation expected through
the TAF period. Smoke from wildfires burning in Northern California
will likely filter into the region.

Vicinity of SFO...Currently VFR with westerly flow. Moderate to high
confidence on VFR prevailing through the TAF period.

SFO Bridge Approach...Similar to SFO.

Monterey Bay Terminals...Currently IFR with northwesterly flow at
MRY and VFR with westerly flow at SNS. MRY should be able to scatter
out shortly, nonetheless stratus will stick close to the coast
through the afternoon with an early return of LIFR ceilings
tonight.

&&

.MARINE...
(Today through Wednesday)
Issued at 1026 AM PDT Fri Jul 11 2025

Strong northerly breezes with gale force gusts and rough to very
rough seas will continue for the far northwestern portion of the
northern outer waters through Saturday. Conditions improve Sunday,
but similar hazardous conditions return Monday into Tuesday.
Elsewhere, a gentle to moderate breeze with moderate to rough seas
will prevail.

&&

.MTR WATCHES/WARNINGS/ADVISORIES...
CA...None.
PZ...Small Craft Advisory until 3 PM PDT Saturday for Pt Arena to Pt
     Reyes 10-60 NM.

&&

$$

SHORT TERM...KR
LONG TERM....KR
AVIATION...Sarment
MARINE...Sarment

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