National Weather Service Forecast for: Gilroy CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 2:54 pm PST Dec 22, 2025
 
Tonight

Tonight: A 20 percent chance of rain. Patchy fog before midnight. Otherwise, cloudy, with a low around 51. Calm wind.
Slight Chance
Rain and
Patchy Fog
 Tuesday

Tuesday: Rain likely, mainly after 4pm. Cloudy, with a high near 62. South southeast wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Rain Likely

 Tuesday
Night
Tuesday Night: Rain. Low around 53. South southeast wind around 21 mph, with gusts as high as 41 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Rain

 Wednesday

Wednesday: Rain before 1pm, then showers and possibly a thunderstorm after 1pm. High near 60. South wind 6 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Showers

 Wednesday
Night
Wednesday Night: Showers and possibly a thunderstorm before 7pm, then rain between 7pm and 4am, then showers and possibly a thunderstorm after 4am. Low around 52. Southeast wind 15 to 18 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Showers

 Christmas
Day
Christmas Day: Showers and possibly a thunderstorm before 7am, then rain after 7am. High near 56. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Showers

 Thursday
Night
Thursday Night: Showers and possibly a thunderstorm before 4am, then rain and possibly a thunderstorm after 4am. Low around 46. Chance of precipitation is 100%.
Showers

 Friday

Friday: Rain. Cloudy, with a high near 54.
Rain

 Friday
Night
Friday Night: Rain likely, mainly before 10pm. Mostly cloudy, with a low around 41.
Rain Likely
Lo 51 °F Hi 62 °F Lo 53 °F Hi 60 °F Lo 52 °F Hi 56 °F Lo 46 °F Hi 54 °F Lo 41 °F

Flood Watch
Wind Advisory
 

Tonight
 
 A 20 percent chance of rain. Patchy fog before midnight. Otherwise, cloudy, with a low around 51. Calm wind.
Tuesday
 
 Rain likely, mainly after 4pm. Cloudy, with a high near 62. South southeast wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
 
 Rain. Low around 53. South southeast wind around 21 mph, with gusts as high as 41 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
 
 Rain before 1pm, then showers and possibly a thunderstorm after 1pm. High near 60. South wind 6 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
 
 Showers and possibly a thunderstorm before 7pm, then rain between 7pm and 4am, then showers and possibly a thunderstorm after 4am. Low around 52. Southeast wind 15 to 18 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Christmas Day
 
 Showers and possibly a thunderstorm before 7am, then rain after 7am. High near 56. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Thursday Night
 
 Showers and possibly a thunderstorm before 4am, then rain and possibly a thunderstorm after 4am. Low around 46. Chance of precipitation is 100%.
Friday
 
 Rain. Cloudy, with a high near 54.
Friday Night
 
 Rain likely, mainly before 10pm. Mostly cloudy, with a low around 41.
Saturday
 
 A slight chance of rain before 10am. Mostly sunny, with a high near 57.
Saturday Night
 
 Mostly clear, with a low around 38.
Sunday
 
 Sunny, with a high near 58.
Sunday Night
 
 Mostly clear, with a low around 39.
Monday
 
 Sunny, with a high near 59.

 

Forecast from NOAA-NWS for Gilroy CA.