Harman US

Upland, CA Weather & Growing Conditions

Today
71°F
Sunny
Sunny, with a high near 71. South wind 0 to 5 mph.

7-day forecast

WhenTempForecastWindPrecip
Today 71°F Sunny 0 to 5 mph S 2%
Tonight 53°F Partly Cloudy 0 to 10 mph N 0%
Thursday 75°F Mostly Sunny 0 to 5 mph NE 0%
Thursday Night 55°F Partly Cloudy 5 to 10 mph N 0%
Friday 78°F Sunny 5 to 10 mph NE 0%
Friday Night 55°F Clear 10 to 20 mph NE 0%
Saturday 79°F Sunny 0 to 10 mph NE 0%
Saturday Night 57°F Clear 0 to 20 mph N 0%
Sunday 80°F Sunny 0 to 10 mph E 0%
Sunday Night 60°F Mostly Clear 0 to 15 mph N 0%
Monday 78°F Sunny 0 to 5 mph SE 0%
Monday Night 59°F Partly Cloudy 0 to 5 mph N 1%
Tuesday 76°F Sunny 0 to 5 mph NE 3%
Tuesday Night 57°F Mostly Clear 0 to 5 mph N 6%

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 (6.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.