Harman US

Colton, CA Weather & Growing Conditions

Today
97°F
Sunny
Sunny, with a high near 97. West wind 5 to 15 mph, with gusts as high as 25 mph.

7-day forecast

WhenTempForecastWindPrecip
Today 97°F Sunny 5 to 15 mph W 0%
Tonight 68°F Mostly Clear 5 to 10 mph SW 0%
Wednesday 96°F Sunny 0 to 10 mph SW 0%
Wednesday Night 68°F Mostly Clear 0 to 10 mph SW 0%
Thursday 99°F Sunny 0 to 10 mph SW 1%
Thursday Night 69°F Mostly Clear 0 to 10 mph W 1%
Friday 100°F Sunny 0 to 10 mph W 0%
Friday Night 70°F Mostly Clear 0 to 10 mph W 0%
Saturday 101°F Sunny 0 to 10 mph W 0%
Saturday Night 70°F Mostly Clear 0 to 10 mph W 0%
Sunday 100°F Sunny 0 to 10 mph SW 1%
Sunday Night 69°F Mostly Clear 5 to 10 mph W 1%
Monday 96°F Sunny 0 to 10 mph SW 3%
Monday Night 67°F Mostly Clear 0 to 10 mph W 2%

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

Growing snapshot for Colton, CA

Last spring frost
Jan 27
First fall frost
Dec 19
Growing season
329 days
Hardiness zone
10a

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

Climate data from the nearest NOAA station, Redlands, Ca (5.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.