National Weather Service Forecast for: Rohnert Park CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 12:26 am PST Feb 2, 2026
 
Overnight

Overnight: Widespread fog, mainly before 4am. Otherwise, partly cloudy, with a low around 40. Calm wind.
Fog
 Monday

Monday: Widespread fog, mainly before 8am. Otherwise, sunny, with a high near 65. Calm wind becoming west southwest around 5 mph in the afternoon.
Fog then
Sunny
 Monday
Night
Monday Night: Widespread fog, mainly after 1am. Otherwise, partly cloudy, with a low around 40. Calm wind.
Fog
 Tuesday

Tuesday: Areas of fog before 10am. Otherwise, sunny, with a high near 68. Light east wind.
Areas Fog
then Sunny
 Tuesday
Night
Tuesday Night: Patchy fog after 9pm. Otherwise, mostly clear, with a low around 40. Calm wind.
Patchy Fog
 Wednesday

Wednesday: Sunny, with a high near 68.
Sunny
 Wednesday
Night
Wednesday Night: Patchy fog between 10pm and 3am. Otherwise, mostly clear, with a low around 42.
Patchy Fog
 Thursday

Thursday: Mostly sunny, with a high near 66.
Mostly Sunny
 Thursday
Night
Thursday Night: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 44.
Patchy Fog
Lo 40 °F Hi 65 °F Lo 40 °F Hi 68 °F Lo 40 °F Hi 68 °F Lo 42 °F Hi 66 °F Lo 44 °F

Coastal Flood Advisory
 

Overnight
 
 Widespread fog, mainly before 4am. Otherwise, partly cloudy, with a low around 40. Calm wind.
Monday
 
 Widespread fog, mainly before 8am. Otherwise, sunny, with a high near 65. Calm wind becoming west southwest around 5 mph in the afternoon.
Monday Night
 
 Widespread fog, mainly after 1am. Otherwise, partly cloudy, with a low around 40. Calm wind.
Tuesday
 
 Areas of fog before 10am. Otherwise, sunny, with a high near 68. Light east wind.
Tuesday Night
 
 Patchy fog after 9pm. Otherwise, mostly clear, with a low around 40. Calm wind.
Wednesday
 
 Sunny, with a high near 68.
Wednesday Night
 
 Patchy fog between 10pm and 3am. Otherwise, mostly clear, with a low around 42.
Thursday
 
 Mostly sunny, with a high near 66.
Thursday Night
 
 Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 44.
Friday
 
 Patchy fog before 9am. Otherwise, mostly sunny, with a high near 64.
Friday Night
 
 Widespread fog. Otherwise, mostly cloudy, with a low around 44.
Saturday
 
 Widespread fog. Otherwise, mostly sunny, with a high near 64.
Saturday Night
 
 Widespread fog. Otherwise, mostly cloudy, with a low around 44.
Sunday
 
 A slight chance of rain. Widespread fog. Otherwise, partly sunny, with a high near 64.

 

Forecast from NOAA-NWS for Rohnert Park CA.