National Weather Service Forecast for: 3 Miles N Upland CA
Issued by: National Weather Service San Diego, CA
Updated: 5:33 am PDT Oct 6, 2026
 
Today

Today: Sunny, with a high near 92. Southeast wind around 5 mph becoming southwest in the afternoon.
Sunny
Tonight

Tonight: Clear, with a low around 75. Northwest wind 5 to 10 mph becoming east in the evening.
Clear
Wednesday

Wednesday: Sunny, with a high near 91. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Sunny
Wednesday
Night
Wednesday Night: Mostly clear, with a low around 74. North wind around 5 mph becoming calm  in the evening.
Mostly Clear
Thursday

Thursday: Sunny, with a high near 91. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Sunny
Thursday
Night
Thursday Night: Clear, with a low around 72.
Clear
Friday

Friday: Sunny, with a high near 88.
Sunny
Friday
Night
Friday Night: Mostly clear, with a low around 69.
Mostly Clear
Saturday

Saturday: Sunny, with a high near 80.
Sunny
Hi 92 °F Lo 75 °F Hi 91 °F Lo 74 °F Hi 91 °F Lo 72 °F Hi 88 °F Lo 69 °F Hi 80 °F

Extreme Heat Warning
 

Today
 
Sunny, with a high near 92. Southeast wind around 5 mph becoming southwest in the afternoon.
Tonight
 
Clear, with a low around 75. Northwest wind 5 to 10 mph becoming east in the evening.
Wednesday
 
Sunny, with a high near 91. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Wednesday Night
 
Mostly clear, with a low around 74. North wind around 5 mph becoming calm in the evening.
Thursday
 
Sunny, with a high near 91. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
 
Clear, with a low around 72.
Friday
 
Sunny, with a high near 88.
Friday Night
 
Mostly clear, with a low around 69.
Saturday
 
Sunny, with a high near 80.
Saturday Night
 
Mostly clear, with a low around 61.
Sunday
 
A slight chance of showers. Mostly sunny, with a high near 72.
Sunday Night
 
A chance of showers. Partly cloudy, with a low around 56.
Columbus Day
 
A chance of showers. Mostly sunny, with a high near 68.

 

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