National Weather Service Forecast for: 3 Miles WNW San Bernardino CA
Issued by: National Weather Service San Diego, CA
Updated: 8:40 pm PST Dec 22, 2025
 
Tonight

Tonight: Mostly cloudy, with a low around 53. Calm wind.
Mostly Cloudy
 Tuesday

Tuesday: A chance of showers, mainly after 4pm. Mostly cloudy, with a high near 66. South wind 5 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Chance
Showers
 Tuesday
Night
Tuesday Night: Showers, mainly after 10pm. The rain could be heavy at times. Low around 54. Light east wind becoming southeast 5 to 10 mph after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between 1 and 2 inches possible.
Heavy Rain
 Wednesday

Wednesday: Showers, with thunderstorms also possible after 10am. Some of the storms could produce heavy rainfall. High near 62. Southeast wind 10 to 15 mph becoming south in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between 2 and 3 inches possible.
Heavy Rain
 Wednesday
Night
Wednesday Night: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 52. Southwest wind 5 to 10 mph becoming light and variable. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Heavy Rain
 Christmas
Day
Christmas Day: Showers. High near 62. Chance of precipitation is 80%.
Showers
 Thursday
Night
Thursday Night: Showers. Low around 50. Chance of precipitation is 90%.
Showers
 Friday

Friday: Showers. Mostly cloudy, with a high near 59.
Showers
 Friday
Night
Friday Night: Showers likely, mainly before 10pm. Mostly cloudy, with a low around 44.
Showers
Likely
Lo 53 °F Hi 66 °F Lo 54 °F Hi 62 °F Lo 52 °F Hi 62 °F Lo 50 °F Hi 59 °F Lo 44 °F

Flood Watch
Wind Advisory
 

Tonight
 
 Mostly cloudy, with a low around 53. Calm wind.
Tuesday
 
 A chance of showers, mainly after 4pm. Mostly cloudy, with a high near 66. South wind 5 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
 
 Showers, mainly after 10pm. The rain could be heavy at times. Low around 54. Light east wind becoming southeast 5 to 10 mph after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between 1 and 2 inches possible.
Wednesday
 
 Showers, with thunderstorms also possible after 10am. Some of the storms could produce heavy rainfall. High near 62. Southeast wind 10 to 15 mph becoming south in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between 2 and 3 inches possible.
Wednesday Night
 
 Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 52. Southwest wind 5 to 10 mph becoming light and variable. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Christmas Day
 
 Showers. High near 62. Chance of precipitation is 80%.
Thursday Night
 
 Showers. Low around 50. Chance of precipitation is 90%.
Friday
 
 Showers. Mostly cloudy, with a high near 59.
Friday Night
 
 Showers likely, mainly before 10pm. Mostly cloudy, with a low around 44.
Saturday
 
 A slight chance of showers. Partly sunny, with a high near 59.
Saturday Night
 
 A slight chance of showers. Partly cloudy, with a low around 43.
Sunday
 
 Sunny, with a high near 62.
Sunday Night
 
 Partly cloudy, with a low around 44.
Monday
 
 A slight chance of showers. Mostly sunny, with a high near 65.

 

Forecast from NOAA-NWS for 3 Miles WNW San Bernardino CA.