National Weather Service Forecast for: 3 Miles N Upland CA
Issued by: National Weather Service San Diego, CA
Updated: 12:35 pm PST Dec 22, 2025
 
Tonight

Tonight: Mostly cloudy, with a low around 54. Calm wind becoming east around 5 mph.
Mostly Cloudy

 Tuesday

Tuesday: Showers likely, mainly after 4pm. Mostly cloudy, with a high near 59. East wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Chance
Showers then
Showers
Likely
 Tuesday
Night
Tuesday Night: Showers. The rain could be heavy at times. Low around 54. East wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between 2 and 3 inches possible.
Heavy Rain

 Wednesday

Wednesday: Showers, with thunderstorms also possible after 10am. Some of the storms could produce heavy rainfall. High near 57. Southeast wind 5 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between 3 and 4 inches possible.
Heavy Rain

 Wednesday
Night
Wednesday Night: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 53. Southwest wind 5 to 10 mph becoming northeast after midnight. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Heavy Rain

 Christmas
Day
Christmas Day: Showers. The rain could be heavy at times. High near 55. Chance of precipitation is 80%.
Heavy Rain

 Thursday
Night
Thursday Night: Showers. The rain could be heavy at times. Low around 52. Chance of precipitation is 100%.
Heavy Rain

 Friday

Friday: Showers. The rain could be heavy at times. Cloudy, with a high near 54.
Heavy Rain

 Friday
Night
Friday Night: Showers likely, mainly before 10pm. The rain could be heavy at times. Mostly cloudy, with a low around 46.
Heavy Rain
Lo 54 °F Hi 59 °F Lo 54 °F Hi 57 °F Lo 53 °F Hi 55 °F Lo 52 °F Hi 54 °F Lo 46 °F

Flood Watch
Wind Advisory
 

Tonight
 
 Mostly cloudy, with a low around 54. Calm wind becoming east around 5 mph.
Tuesday
 
 Showers likely, mainly after 4pm. Mostly cloudy, with a high near 59. East wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
 
 Showers. The rain could be heavy at times. Low around 54. East wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between 2 and 3 inches possible.
Wednesday
 
 Showers, with thunderstorms also possible after 10am. Some of the storms could produce heavy rainfall. High near 57. Southeast wind 5 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between 3 and 4 inches possible.
Wednesday Night
 
 Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 53. Southwest wind 5 to 10 mph becoming northeast after midnight. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Christmas Day
 
 Showers. The rain could be heavy at times. High near 55. Chance of precipitation is 80%.
Thursday Night
 
 Showers. The rain could be heavy at times. Low around 52. Chance of precipitation is 100%.
Friday
 
 Showers. The rain could be heavy at times. Cloudy, with a high near 54.
Friday Night
 
 Showers likely, mainly before 10pm. The rain could be heavy at times. Mostly cloudy, with a low around 46.
Saturday
 
 A chance of showers, mainly between 10am and 4pm. Partly sunny, with a high near 53.
Saturday Night
 
 A slight chance of showers. Partly cloudy, with a low around 47.
Sunday
 
 Mostly sunny, with a high near 55.
Sunday Night
 
 Partly cloudy, with a low around 49.
Monday
 
 A slight chance of showers. Mostly sunny, with a high near 59.

 

Forecast from NOAA-NWS for 3 Miles N Upland CA.