Kelso, WA Weather & Growing Conditions
Today
77°F
Patchy Fog then Partly Sunny
Patchy fog before 8am. Partly sunny, with a high near 77. Northwest wind 1 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 77°F | Patchy Fog then Partly Sunny | 1 to 5 mph NW | 0% |
| Tonight | 52°F | Mostly Clear | 5 mph NNW | 0% |
| Sunday | 79°F | Mostly Sunny | 7 mph NNW | 0% |
| Sunday Night | 53°F | Mostly Clear | 7 mph NNW | 0% |
| Monday | 75°F | Mostly Sunny | 5 to 8 mph NW | 0% |
| Monday Night | 53°F | Partly Cloudy | 3 to 8 mph NW | 0% |
| Tuesday | 72°F | Partly Sunny | 3 to 8 mph NW | 0% |
| Tuesday Night | 50°F | Partly Cloudy then Patchy Fog | 1 to 8 mph NW | 1% |
| Wednesday | 71°F | Patchy Fog then Partly Sunny | 1 to 6 mph NW | 1% |
| Wednesday Night | 51°F | Mostly Cloudy | 6 mph NNW | 1% |
| Thursday | 69°F | Partly Sunny | 3 to 8 mph NNW | 13% |
| Thursday Night | 50°F | Mostly Cloudy | 8 mph NNW | 13% |
| Friday | 67°F | Mostly Sunny | 8 mph NW | 11% |
| Friday Night | 49°F | Partly Cloudy | 5 to 8 mph NNW | 6% |
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 Sep 19, 2026.