Chehalis, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Chehalis, a city in Lewis County, Washington.
Today
93°F
Sunny then Smoke
Smoke after noon. Sunny, with a high near 93. North wind around 7 mph.
7-day forecast for Chehalis
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 93°F | Sunny then Smoke | 7 mph N | 0% |
| Tonight | 60°F | Smoke | 2 to 6 mph NNW | 0% |
| Wednesday | 97°F | Areas Of Smoke | 6 mph N | 0% |
| Wednesday Night | 58°F | Mostly Clear | 0 to 5 mph NNW | 0% |
| Thursday | 95°F | Sunny | 0 to 5 mph NNW | 0% |
| Thursday Night | 57°F | Mostly Clear | 0 to 6 mph W | 0% |
| Friday | 89°F | Sunny | 0 to 8 mph WNW | 0% |
| Friday Night | 55°F | Mostly Clear | 0 to 8 mph W | 0% |
| Saturday | 83°F | Sunny | 0 to 9 mph SW | 0% |
| Saturday Night | 53°F | Partly Cloudy | 1 to 9 mph W | 0% |
| Sunday | 78°F | Mostly Sunny | 1 to 8 mph W | 0% |
| Sunday Night | 52°F | Partly Cloudy | 0 to 8 mph W | 0% |
| Monday | 79°F | Mostly Sunny | 0 to 7 mph W | 0% |
| Monday Night | 53°F | Partly Cloudy | 0 to 7 mph WNW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Chehalis (46.664, -122.965). Updated through the day.
Growing snapshot for Chehalis
Last spring frost
Apr 22
First fall frost
Oct 27
Growing season
188 days
Hardiness zone
8a
More local growing data for Chehalis: nearby ZIP 98532 weather · frost dates · planting calendar · Washington frost dates
Nearby towns & communities
Ashford
Centralia
Fords Prairie
Grand Mound
Morton
Mossyrock
Napavine
Onalaska
Packwood
Pe Ell
Toledo
Vader
Winlock
Climate data from the nearest NOAA station, Centralia, Wa (8 mi from Chehalis). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.