Harman US

Colton, CA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Colton, a city in San Bernardino County, California.

Today
89°F
Sunny
Sunny, with a high near 89. West wind 0 to 10 mph.

7-day forecast for Colton

WhenTempForecastWindPrecip
Today 89°F Sunny 0 to 10 mph W 0%
Tonight 64°F Partly Cloudy 5 to 10 mph SW 0%
Sunday 86°F Mostly Sunny 0 to 10 mph SW 0%
Sunday Night 65°F Mostly Cloudy 0 to 10 mph SW 2%
Monday 82°F Mostly Sunny 0 to 10 mph SW 2%
Monday Night 62°F Partly Cloudy 0 to 10 mph W 1%
Tuesday 85°F Sunny 0 to 5 mph W 0%
Tuesday Night 64°F Clear 0 to 5 mph NW 0%
Wednesday 93°F Sunny 0 to 10 mph W 0%
Wednesday Night 67°F Mostly Clear 0 to 10 mph NW 0%
Thursday 94°F Sunny 0 to 10 mph NW 4%
Thursday Night 68°F Mostly Clear 0 to 10 mph W 4%
Friday 93°F Sunny 0 to 5 mph S 4%
Friday Night 68°F Mostly Clear 0 to 5 mph W 2%

Forecast source: National Weather Service (api.weather.gov) for Colton (34.055, -117.325). Updated through the day.

Growing snapshot for Colton

Last spring frost
Jan 10
First fall frost
Jan 2
Growing season
365 days
Hardiness zone
10a

More local growing data for Colton: nearby ZIP 92313 weather · frost dates · planting calendar · California frost dates

Nearby towns & communities

All California locations ›

Climate data from the nearest NOAA station, Riverside Citrus Exp, Ca (5.2 mi from Colton). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.