National Weather Service Forecast for: Cotati CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 1:26 pm PDT May 26, 2026
 
Tonight

Tonight: Patchy fog after 2am.  Otherwise, mostly clear, with a low around 45. West northwest wind 9 to 14 mph becoming light west  after midnight. Winds could gust as high as 28 mph.
Mostly Clear
then Patchy
Fog

Wednesday

Wednesday: A slight chance of rain between 3pm and 4pm.  Areas of fog before 7am.  Otherwise, mostly sunny, with a high near 70. Calm wind becoming west southwest 5 to 7 mph in the afternoon.  Chance of precipitation is 20%.
Areas Fog
then Slight
Chance Rain

Wednesday
Night
Wednesday Night: A slight chance of rain before 3am, then a slight chance of rain after 4am.  Patchy fog after 1am.  Otherwise, increasing clouds, with a low around 48. Light and variable wind.  Chance of precipitation is 20%.
Partly Cloudy
then Slight
Chance Rain
and Patchy
Fog
Thursday

Thursday: A 20 percent chance of rain.  Areas of fog before 9am.  Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 71. Calm wind becoming southwest 5 to 7 mph in the afternoon.  New precipitation amounts of less than a tenth of an inch possible.
Slight Chance
Rain and
Areas Fog

Thursday
Night
Thursday Night: Patchy fog after 11pm.  Otherwise, partly cloudy, with a low around 49. West southwest wind 5 to 8 mph becoming calm  in the evening.
Patchy Fog


Friday

Friday: Areas of fog before 9am.  Otherwise, mostly sunny, with a high near 70.
Areas Fog
then Mostly
Sunny

Friday
Night
Friday Night: Patchy fog after midnight.  Otherwise, mostly clear, with a low around 48.
Mostly Clear
then Patchy
Fog

Saturday

Saturday: Areas of fog before 9am.  Otherwise, mostly sunny, with a high near 76.
Areas Fog
then Sunny

Saturday
Night
Saturday Night: Patchy fog after 3am.  Otherwise, mostly clear, with a low around 47.
Clear then
Patchy Fog

Lo 45 °F Hi 70 °F Lo 48 °F Hi 71 °F Lo 49 °F Hi 70 °F Lo 48 °F Hi 76 °F Lo 47 °F

 

Tonight
 
Patchy fog after 2am. Otherwise, mostly clear, with a low around 45. West northwest wind 9 to 14 mph becoming light west after midnight. Winds could gust as high as 28 mph.
Wednesday
 
A slight chance of rain between 3pm and 4pm. Areas of fog before 7am. Otherwise, mostly sunny, with a high near 70. Calm wind becoming west southwest 5 to 7 mph in the afternoon. Chance of precipitation is 20%.
Wednesday Night
 
A slight chance of rain before 3am, then a slight chance of rain after 4am. Patchy fog after 1am. Otherwise, increasing clouds, with a low around 48. Light and variable wind. Chance of precipitation is 20%.
Thursday
 
A 20 percent chance of rain. Areas of fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 71. Calm wind becoming southwest 5 to 7 mph in the afternoon. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
 
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 49. West southwest wind 5 to 8 mph becoming calm in the evening.
Friday
 
Areas of fog before 9am. Otherwise, mostly sunny, with a high near 70.
Friday Night
 
Patchy fog after midnight. Otherwise, mostly clear, with a low around 48.
Saturday
 
Areas of fog before 9am. Otherwise, mostly sunny, with a high near 76.
Saturday Night
 
Patchy fog after 3am. Otherwise, mostly clear, with a low around 47.
Sunday
 
Sunny, with a high near 79.
Sunday Night
 
Patchy fog. Otherwise, mostly clear, with a low around 49.
Monday
 
Sunny, with a high near 81.
Monday Night
 
Patchy fog. Otherwise, mostly clear, with a low around 49.
Tuesday
 
Mostly sunny, with a high near 81.

 

Forecast from NOAA-NWS for Cotati CA.