Colfax, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Colfax, a city in Whitman County, Washington.
Today
86°F
Haze
Haze and areas of smoke before 1pm. Sunny. High near 86, with temperatures falling to around 84 in the afternoon. Northeast wind around 5 mph.
7-day forecast for Colfax
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Haze | 5 mph NE | 0% |
| Tonight | 46°F | Patchy Smoke then Haze | 3 mph NE | 0% |
| Wednesday | 91°F | Patchy Smoke then Sunny | 3 mph SE | 0% |
| Wednesday Night | 49°F | Patchy Smoke then Clear | 2 mph NE | 0% |
| Thursday | 96°F | Sunny | 5 mph S | 0% |
| Thursday Night | 53°F | Mostly Clear | 3 mph S | 0% |
| Friday | 94°F | Sunny | 2 to 12 mph SW | 0% |
| Friday Night | 54°F | Clear | 2 to 10 mph SW | 0% |
| Saturday | 91°F | Sunny | 3 to 10 mph SW | 0% |
| Saturday Night | 52°F | Mostly Clear | 2 to 9 mph SW | 0% |
| Sunday | 86°F | Sunny | 5 to 9 mph SW | 0% |
| Sunday Night | 49°F | Mostly Clear | 1 to 7 mph SW | 0% |
| Monday | 85°F | Sunny | 2 to 7 mph SW | 0% |
| Monday Night | 48°F | Mostly Clear | 1 to 6 mph S | 1% |
Forecast source: National Weather Service (api.weather.gov) for Colfax (46.902, -117.345). Updated through the day.
Growing snapshot for Colfax
Last spring frost
Apr 29
First fall frost
Oct 4
Growing season
161 days
Hardiness zone
6b
More local growing data for Colfax: nearby ZIP 99174 weather · frost dates · planting calendar · Washington frost dates
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West Clarkston-Highland
Climate data from the nearest NOAA station, St John, Wa (12.4 mi from Colfax). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.