Colton, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Colton, a town in Whitman County, Washington.
Overnight
45°F
Areas Of Smoke
Areas of smoke before 5am, then haze and areas of smoke. Mostly clear. Low around 45, with temperatures rising to around 49 overnight. East wind around 1 mph.
7-day forecast for Colton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 45°F | Areas Of Smoke | 1 mph E | 0% |
| Tuesday | 83°F | Haze | 2 to 6 mph NE | 0% |
| Tuesday Night | 48°F | Mostly Clear | 1 to 6 mph NE | 0% |
| Wednesday | 88°F | Sunny | 6 mph SE | 0% |
| Wednesday Night | 51°F | Clear | 0 to 3 mph NW | 0% |
| Thursday | 94°F | Sunny | 6 mph S | 0% |
| Thursday Night | 56°F | Clear | 0 to 5 mph SW | 0% |
| Friday | 92°F | Sunny | 1 to 15 mph SW | 0% |
| Friday Night | 55°F | Clear | 2 to 14 mph W | 0% |
| Saturday | 89°F | Sunny | 2 to 13 mph SW | 0% |
| Saturday Night | 53°F | Mostly Clear | 3 to 13 mph W | 0% |
| Sunday | 84°F | Sunny | 3 to 12 mph W | 0% |
| Sunday Night | 51°F | Mostly Clear | 1 to 10 mph W | 0% |
| Monday | 83°F | Sunny | 1 to 9 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov) for Colton (46.567, -117.128). Updated through the day.
Growing snapshot for Colton
Last spring frost
Apr 29
First fall frost
Oct 2
Growing season
159 days
Hardiness zone
7a
More local growing data for Colton: nearby ZIP 99113 weather · frost dates · planting calendar · Washington frost dates
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West Clarkston-Highland
Climate data from the nearest NOAA station, Pullman Moscow Rgnl Ap, Wa (11.8 mi from Colton). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.