National Weather Service Forecast for: Hercules CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 1:26 pm PDT Jun 14, 2025
 
This
Afternoon
This Afternoon: Mostly sunny, with a high near 70. South southwest wind 10 to 13 mph.
Mostly Sunny
 Tonight

Tonight: Mostly clear, with a low around 50. South southwest wind 8 to 10 mph.
Mostly Clear
 Sunday

Sunday: Mostly cloudy through mid morning, then gradual clearing, with a high near 70. South southwest wind 8 to 14 mph.
Becoming
Sunny
 Sunday
Night
Sunday Night: Mostly clear, with a low around 51. South southwest wind around 11 mph.
Mostly Clear
 Monday

Monday: Sunny, with a high near 71. Southwest wind 9 to 13 mph.
Sunny
 Monday
Night
Monday Night: Clear, with a low around 52.
Clear
 Tuesday

Tuesday: Sunny, with a high near 76.
Sunny
 Tuesday
Night
Tuesday Night: Clear, with a low around 55.
Clear
 Wednesday

Wednesday: Sunny, with a high near 79.
Sunny
Hi 70 °F Lo 50 °F Hi 70 °F Lo 51 °F Hi 71 °F Lo 52 °F Hi 76 °F Lo 55 °F Hi 79 °F

 

This Afternoon
 
 Mostly sunny, with a high near 70. South southwest wind 10 to 13 mph.
Tonight
 
 Mostly clear, with a low around 50. South southwest wind 8 to 10 mph.
Sunday
 
 Mostly cloudy through mid morning, then gradual clearing, with a high near 70. South southwest wind 8 to 14 mph.
Sunday Night
 
 Mostly clear, with a low around 51. South southwest wind around 11 mph.
Monday
 
 Sunny, with a high near 71. Southwest wind 9 to 13 mph.
Monday Night
 
 Clear, with a low around 52.
Tuesday
 
 Sunny, with a high near 76.
Tuesday Night
 
 Clear, with a low around 55.
Wednesday
 
 Sunny, with a high near 79.
Wednesday Night
 
 Clear, with a low around 53.
Juneteenth
 
 Sunny, with a high near 71.
Thursday Night
 
 Clear, with a low around 51.
Friday
 
 Sunny, with a high near 72.

 

Forecast from NOAA-NWS for Hercules CA.