Harman US

Colton, WA Weather & Growing Conditions

Tonight
35°F
Partly Cloudy
Partly cloudy, with a low around 35. Northwest wind around 2 mph.

7-day forecast

WhenTempForecastWindPrecip
Tonight 35°F Partly Cloudy 2 mph NW 3%
Wednesday 49°F Sunny 2 mph NW 1%
Wednesday Night 36°F Mostly Cloudy then Rain Showers Likely 1 to 5 mph SE 57%
Thursday 49°F Rain Showers Likely then Partly Sunny 3 to 9 mph SW 57%
Thursday Night 35°F Partly Cloudy 3 to 12 mph SE 1%
Friday 50°F Mostly Cloudy 3 to 12 mph SE 6%
Friday Night 38°F Mostly Cloudy 3 to 8 mph SE 6%
Saturday 57°F Partly Sunny 6 to 12 mph SE 2%
Saturday Night 41°F Mostly Cloudy 6 to 15 mph SE 12%
Sunday 55°F Slight Chance Rain Showers 5 to 10 mph SW 18%
Sunday Night 38°F Mostly Cloudy 6 mph SW 12%
Monday 52°F Mostly Cloudy then Slight Chance Rain Showers 1 to 6 mph SE 16%
Monday Night 39°F Slight Chance Rain Showers then Mostly Cloudy 1 to 6 mph S 16%
Tuesday 55°F Chance Rain Showers 3 to 8 mph SE 25%

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

Growing snapshot for Colton, WA

Last spring frost
Apr 29
First fall frost
Oct 2
Growing season
159 days
Hardiness zone
7a

Explore more for Colton, WA: full frost dates · planting calendar · Washington frost dates

Climate data from the nearest NOAA station, Pullman Moscow Rgnl Ap, Wa (11.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.