National Weather Service Forecast for: Hayward CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 11:44 pm PST Feb 1, 2026
 
Overnight

Overnight: Patchy fog after 4am.  Otherwise, mostly clear, with a low around 44. Calm wind.
Patchy Fog
Monday

Monday: Patchy fog before 8am.  Otherwise, sunny, with a high near 67. Calm wind becoming west northwest around 6 mph in the afternoon.
Patchy Fog
then Sunny
Monday
Night
Monday Night: Mostly clear, with a low around 43. Calm wind.
Mostly Clear
Tuesday

Tuesday: Sunny, with a high near 70. Calm wind becoming north northeast around 6 mph in the afternoon.
Sunny
Tuesday
Night
Tuesday Night: Clear, with a low around 44. Light east northeast wind.
Clear
Wednesday

Wednesday: Sunny, with a high near 70.
Sunny
Wednesday
Night
Wednesday Night: Mostly clear, with a low around 45.
Mostly Clear
Thursday

Thursday: Sunny, with a high near 70.
Sunny
Thursday
Night
Thursday Night: Mostly cloudy, with a low around 48.
Mostly Cloudy
Lo 44 °F Hi 67 °F Lo 43 °F Hi 70 °F Lo 44 °F Hi 70 °F Lo 45 °F Hi 70 °F Lo 48 °F

 

Overnight
 
Patchy fog after 4am. Otherwise, mostly clear, with a low around 44. Calm wind.
Monday
 
Patchy fog before 8am. Otherwise, sunny, with a high near 67. Calm wind becoming west northwest around 6 mph in the afternoon.
Monday Night
 
Mostly clear, with a low around 43. Calm wind.
Tuesday
 
Sunny, with a high near 70. Calm wind becoming north northeast around 6 mph in the afternoon.
Tuesday Night
 
Clear, with a low around 44. Light east northeast wind.
Wednesday
 
Sunny, with a high near 70.
Wednesday Night
 
Mostly clear, with a low around 45.
Thursday
 
Sunny, with a high near 70.
Thursday Night
 
Mostly cloudy, with a low around 48.
Friday
 
Mostly sunny, with a high near 67.
Friday Night
 
Partly cloudy, with a low around 48.
Saturday
 
Mostly sunny, with a high near 67.
Saturday Night
 
Partly cloudy, with a low around 48.
Sunday
 
A slight chance of rain. Mostly sunny, with a high near 68.

 

Forecast from NOAA-NWS for Hayward CA.