National Weather Service Forecast for: Rohnert Park CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 1:40 am PST Dec 5, 2025
 
Overnight

Overnight: Patchy fog after 2am. Patchy frost after 3am.  Otherwise, partly cloudy, with a low around 37. Calm wind.
Patchy Frost
and Patchy
Fog
Friday

Friday: Patchy frost before 8am.  Otherwise, sunny, with a high near 61. Calm wind becoming west southwest 5 to 7 mph in the afternoon.
Patchy Frost
then Sunny
Friday
Night
Friday Night: Patchy dense fog between 2am and 4am.  Otherwise, partly cloudy, with a low around 42. South southeast wind around 5 mph becoming calm  in the evening.
Patchy Dense
Fog
Saturday

Saturday: Patchy fog before 10am.  Otherwise, partly sunny, then gradually becoming sunny, with a high near 62. Calm wind becoming northwest 5 to 8 mph in the afternoon.
Patchy Fog
then Sunny
Saturday
Night
Saturday Night: Patchy fog before 10pm.  Otherwise, partly cloudy, with a low around 42. Light west northwest wind.
Patchy Fog
then Mostly
Cloudy
Sunday

Sunday: Partly sunny, with a high near 63.
Partly Sunny

Sunday
Night
Sunday Night: Partly cloudy, with a low around 43.
Partly Cloudy

Monday

Monday: Areas of fog before noon.  Otherwise, mostly sunny, with a high near 64.
Areas Fog
then Sunny
Monday
Night
Monday Night: Patchy fog.  Otherwise, partly cloudy, with a low around 44.
Patchy Fog

Lo 37 °F Hi 61 °F Lo 42 °F Hi 62 °F Lo 42 °F Hi 63 °F Lo 43 °F Hi 64 °F Lo 44 °F

Cold Weather Advisory
Coastal Flood Advisory
 

Overnight
 
Patchy fog after 2am. Patchy frost after 3am. Otherwise, partly cloudy, with a low around 37. Calm wind.
Friday
 
Patchy frost before 8am. Otherwise, sunny, with a high near 61. Calm wind becoming west southwest 5 to 7 mph in the afternoon.
Friday Night
 
Patchy dense fog between 2am and 4am. Otherwise, partly cloudy, with a low around 42. South southeast wind around 5 mph becoming calm in the evening.
Saturday
 
Patchy fog before 10am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 62. Calm wind becoming northwest 5 to 8 mph in the afternoon.
Saturday Night
 
Patchy fog before 10pm. Otherwise, partly cloudy, with a low around 42. Light west northwest wind.
Sunday
 
Partly sunny, with a high near 63.
Sunday Night
 
Partly cloudy, with a low around 43.
Monday
 
Areas of fog before noon. Otherwise, mostly sunny, with a high near 64.
Monday Night
 
Patchy fog. Otherwise, partly cloudy, with a low around 44.
Tuesday
 
Areas of fog before noon. Otherwise, partly sunny, with a high near 65.
Tuesday Night
 
Patchy fog. Otherwise, mostly cloudy, with a low around 46.
Wednesday
 
Patchy fog. Otherwise, mostly sunny, with a high near 67.
Wednesday Night
 
Patchy fog. Otherwise, partly cloudy, with a low around 46.
Thursday
 
Patchy fog. Otherwise, mostly sunny, with a high near 66.

 

Forecast from NOAA-NWS for Rohnert Park CA.