National Weather Service Forecast for: 8 Miles N Upland CA
Issued by: National Weather Service San Diego, CA
Updated: 2:58 am PST Dec 22, 2025
 
Today

Today: Partly sunny, with a high near 69. Calm wind becoming south around 5 mph in the afternoon.
Partly Sunny

 Tonight

Tonight: Mostly cloudy, with a low around 44. Southeast wind around 5 mph.
Mostly Cloudy

 Tuesday

Tuesday: Rain likely, mainly after 4pm. Mostly cloudy, with a high near 58. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Chance Rain
then Rain
Likely
 Tuesday
Night
Tuesday Night: Rain. The rain could be heavy at times. Patchy fog. Low around 45. Breezy, with a south wind 15 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New precipitation amounts between 2 and 3 inches possible.
Heavy Rain
and Patchy
Fog
 Wednesday

Wednesday: Rain. The rain could be heavy at times. Areas of fog. High near 55. Breezy, with a south wind 20 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New precipitation amounts in excess of 4 inches possible.
Heavy Rain
and Areas Fog
 Wednesday
Night
Wednesday Night: Rain and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Areas of fog. Low around 43. Breezy. Chance of precipitation is 100%.
Heavy Rain
and Areas Fog
 Christmas
Day
Christmas Day: Rain. High near 53. Breezy. Chance of precipitation is 90%.
Rain and
Breezy
 Thursday
Night
Thursday Night: Showers. The rain could be heavy at times. Cloudy, with a low around 41.
Heavy Rain

 Friday

Friday: Rain showers before 4pm, then rain and snow showers likely. Snow level 6300 feet. Cloudy, with a high near 52.
Showers then
Rain/Snow
Hi 69 °F Lo 44 °F Hi 58 °F Lo 45 °F Hi 55 °F Lo 43 °F Hi 53 °F Lo 41 °F Hi 52 °F

Flood Watch
 

Today
 
 Partly sunny, with a high near 69. Calm wind becoming south around 5 mph in the afternoon.
Tonight
 
 Mostly cloudy, with a low around 44. Southeast wind around 5 mph.
Tuesday
 
 Rain likely, mainly after 4pm. Mostly cloudy, with a high near 58. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
 
 Rain. The rain could be heavy at times. Patchy fog. Low around 45. Breezy, with a south wind 15 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New precipitation amounts between 2 and 3 inches possible.
Wednesday
 
 Rain. The rain could be heavy at times. Areas of fog. High near 55. Breezy, with a south wind 20 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New precipitation amounts in excess of 4 inches possible.
Wednesday Night
 
 Rain and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Areas of fog. Low around 43. Breezy. Chance of precipitation is 100%.
Christmas Day
 
 Rain. High near 53. Breezy. Chance of precipitation is 90%.
Thursday Night
 
 Showers. The rain could be heavy at times. Cloudy, with a low around 41.
Friday
 
 Rain showers before 4pm, then rain and snow showers likely. Snow level 6300 feet. Cloudy, with a high near 52.
Friday Night
 
 Rain and snow showers likely, mainly before 10pm. Snow level 5800 feet. Mostly cloudy, with a low around 38.
Saturday
 
 A chance of snow showers. Partly sunny, with a high near 53.
Saturday Night
 
 A slight chance of snow showers. Partly cloudy, with a low around 36.
Sunday
 
 A slight chance of snow showers. Mostly sunny, with a high near 56.

 

Forecast from NOAA-NWS for 8 Miles N Upland CA.