National Weather Service Forecast for: Cotati CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 10:26 pm PST Nov 1, 2026
 
Tonight

Tonight: Areas of fog. Otherwise, increasing clouds, with a low around 41. Calm wind.
Areas Fog

 Monday

Monday: Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 67. Light and variable wind.
Patchy Fog
then Mostly
Cloudy
 Monday
Night
Monday Night: A 30 percent chance of rain, mainly after 5am. Patchy fog before 11pm, then areas of fog after midnight. Otherwise, increasing clouds, with a low around 44. Calm wind. New precipitation amounts of less than a tenth of an inch possible.
Patchy Fog
then Chance
Rain and
Areas Fog
 Tuesday

Tuesday: Rain. Patchy fog before 7am. High near 62. South wind 3 to 5 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Rain and
Patchy Fog

 Tuesday
Night
Tuesday Night: A 50 percent chance of rain before 10pm. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 43. Calm wind. New precipitation amounts of less than a tenth of an inch possible.
Chance Rain
then Patchy
Fog
 Wednesday

Wednesday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 69.
Patchy Fog
then Sunny

 Wednesday
Night
Wednesday Night: Patchy fog after 1am. Otherwise, partly cloudy, with a low around 43.
Partly Cloudy
then Patchy
Fog
 Thursday

Thursday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 72.
Patchy Fog
then Sunny

 Thursday
Night
Thursday Night: Patchy fog after 9pm. Otherwise, partly cloudy, with a low around 42.
Patchy Fog
Lo 41 °F Hi 67 °F Lo 44 °F Hi 62 °F Lo 43 °F Hi 69 °F Lo 43 °F Hi 72 °F Lo 42 °F

 

Tonight
 
 Areas of fog. Otherwise, increasing clouds, with a low around 41. Calm wind.
Monday
 
 Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 67. Light and variable wind.
Monday Night
 
 A 30 percent chance of rain, mainly after 5am. Patchy fog before 11pm, then areas of fog after midnight. Otherwise, increasing clouds, with a low around 44. Calm wind. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
 
 Rain. Patchy fog before 7am. High near 62. South wind 3 to 5 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
 
 A 50 percent chance of rain before 10pm. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 43. Calm wind. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
 
 Patchy fog before 11am. Otherwise, mostly sunny, with a high near 69.
Wednesday Night
 
 Patchy fog after 1am. Otherwise, partly cloudy, with a low around 43.
Thursday
 
 Patchy fog before 9am. Otherwise, mostly sunny, with a high near 72.
Thursday Night
 
 Patchy fog after 9pm. Otherwise, partly cloudy, with a low around 42.
Friday
 
 Areas of fog before 8am. Otherwise, mostly sunny, with a high near 74.
Friday Night
 
 Patchy fog. Otherwise, mostly clear, with a low around 45.
Saturday
 
 Patchy fog. Otherwise, sunny, with a high near 76.
Saturday Night
 
 Patchy fog. Otherwise, partly cloudy, with a low around 45.
Sunday
 
 Areas of fog. Otherwise, mostly sunny, with a high near 75.

 

Forecast from NOAA-NWS for Cotati CA.