Kelso, WA Weather & Growing Conditions
Overnight
57°F
Patchy Smoke
Patchy smoke. Mostly clear, with a low around 57. North northwest wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 57°F | Patchy Smoke | 6 mph NNW | 0% |
| Tuesday | 91°F | Areas Of Smoke | 7 mph NNW | 0% |
| Tuesday Night | 61°F | Smoke | 7 mph NNW | 0% |
| Wednesday | 96°F | Areas Of Smoke | 6 mph NNW | 0% |
| Wednesday Night | 61°F | Mostly Clear | 2 to 6 mph NNW | 0% |
| Thursday | 95°F | Sunny | 1 to 7 mph NW | 0% |
| Thursday Night | 59°F | Mostly Clear | 2 to 7 mph NW | 0% |
| Friday | 88°F | Sunny | 2 to 9 mph NW | 0% |
| Friday Night | 58°F | Mostly Clear | 5 to 9 mph NW | 0% |
| Saturday | 83°F | Sunny | 5 to 12 mph NW | 0% |
| Saturday Night | 55°F | Partly Cloudy | 3 to 12 mph NW | 0% |
| Sunday | 78°F | Mostly Sunny | 3 to 10 mph NW | 0% |
| Sunday Night | 54°F | Partly Cloudy | 3 to 10 mph NW | 0% |
| Monday | 78°F | Mostly Sunny | 3 to 10 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Kelso, WA
Last spring frost
Apr 8
First fall frost
Nov 5
Growing season
210 days
Hardiness zone
8b
Explore more for Kelso, WA: full frost dates · planting calendar · Washington frost dates
Climate data from the nearest NOAA station, Longview, Wa (6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.