Harman US

Upland, CA Weather & Growing Conditions

Today
93°F
Sunny
Sunny, with a high near 93. Southwest wind 0 to 15 mph, with gusts as high as 25 mph.

7-day forecast

WhenTempForecastWindPrecip
Today 93°F Sunny 0 to 15 mph SW 0%
Tonight 67°F Mostly Clear 0 to 15 mph NW 0%
Wednesday 93°F Sunny 0 to 15 mph W 0%
Wednesday Night 68°F Mostly Clear 0 to 15 mph W 0%
Thursday 95°F Sunny 0 to 10 mph SW 2%
Thursday Night 69°F Mostly Clear 0 to 10 mph W 2%
Friday 95°F Sunny 0 to 10 mph SW 0%
Friday Night 69°F Mostly Clear 0 to 10 mph SW 0%
Saturday 97°F Sunny 0 to 10 mph SW 0%
Saturday Night 69°F Mostly Clear 0 to 10 mph SW 0%
Sunday 96°F Sunny 0 to 10 mph SW 1%
Sunday Night 68°F Mostly Clear 0 to 10 mph SW 1%
Monday 92°F Sunny 0 to 10 mph SW 2%
Monday Night 66°F Mostly Clear 0 to 10 mph SW 1%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Upland, CA

Last spring frost
Jan 4
First fall frost
Dec 30
Growing season
365 days
Hardiness zone
10a

Explore more for Upland, CA: full frost dates · planting calendar · California frost dates

Climate data from the nearest NOAA station, Ontario Intl Ap, Ca (4.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.