National Weather Service Forecast for: Hillsborough CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 12:57 pm PDT May 4, 2026
 
This
Afternoon
This Afternoon: Partly sunny, with a high near 66. West wind 7 to 9 mph.
Partly Sunny

 Tonight

Tonight: Rain likely, mainly after 2am. Mostly cloudy, with a low around 52. West wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Slight Chance
Rain then
Rain Likely
 Tuesday

Tuesday: A 10 percent chance of rain before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 66. Calm wind becoming west 5 to 9 mph in the afternoon.
Slight Chance
Rain then
Mostly Sunny
 Tuesday
Night
Tuesday Night: Mostly cloudy, with a low around 53. West wind 3 to 8 mph.
Mostly Cloudy

 Wednesday

Wednesday: Partly sunny, with a high near 69. Calm wind becoming west 5 to 8 mph in the afternoon.
Partly Sunny

 Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 52.
Partly Cloudy

 Thursday

Thursday: Partly sunny, with a high near 69.
Partly Sunny

 Thursday
Night
Thursday Night: Partly cloudy, with a low around 52.
Partly Cloudy

 Friday

Friday: Mostly sunny, with a high near 70.
Mostly Sunny
Hi 66 °F Lo 52 °F Hi 66 °F Lo 53 °F Hi 69 °F Lo 52 °F Hi 69 °F Lo 52 °F Hi 70 °F

 

This Afternoon
 
 Partly sunny, with a high near 66. West wind 7 to 9 mph.
Tonight
 
 Rain likely, mainly after 2am. Mostly cloudy, with a low around 52. West wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
 
 A 10 percent chance of rain before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 66. Calm wind becoming west 5 to 9 mph in the afternoon.
Tuesday Night
 
 Mostly cloudy, with a low around 53. West wind 3 to 8 mph.
Wednesday
 
 Partly sunny, with a high near 69. Calm wind becoming west 5 to 8 mph in the afternoon.
Wednesday Night
 
 Partly cloudy, with a low around 52.
Thursday
 
 Partly sunny, with a high near 69.
Thursday Night
 
 Partly cloudy, with a low around 52.
Friday
 
 Mostly sunny, with a high near 70.
Friday Night
 
 Clear, with a low around 53.
Saturday
 
 Sunny, with a high near 76.
Saturday Night
 
 Clear, with a low around 54.
Sunday
 
 Sunny, with a high near 80.

 

Forecast from NOAA-NWS for Hillsborough CA.