West Richland, WA Weather & Growing Conditions
Tonight
54°F
Mostly Clear
Mostly clear, with a low around 54. Southwest wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 54°F | Mostly Clear | 3 mph SW | 0% |
| Saturday | 81°F | Sunny | 3 mph S | 0% |
| Saturday Night | 55°F | Mostly Clear | 0 to 3 mph SW | 0% |
| Sunday | 83°F | Sunny | 2 mph N | 0% |
| Sunday Night | 57°F | Mostly Clear | 2 mph NW | 0% |
| Monday | 85°F | Sunny | 3 mph SW | 0% |
| Monday Night | 57°F | Partly Cloudy | 3 mph SW | 0% |
| Tuesday | 80°F | Mostly Sunny | 3 mph SW | 0% |
| Tuesday Night | 54°F | Partly Cloudy | 5 mph SW | 0% |
| Wednesday | 76°F | Sunny | 5 mph SW | 0% |
| Wednesday Night | 53°F | Partly Cloudy | 3 mph W | 0% |
| Thursday | 78°F | Mostly Sunny | 5 mph NW | 3% |
| Thursday Night | 55°F | Partly Cloudy | 5 mph W | 8% |
| Friday | 75°F | Mostly Sunny | 6 mph SW | 5% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for West Richland, WA
Last spring frost
Apr 6
First fall frost
Oct 24
Growing season
200 days
Hardiness zone
7b
Explore more for West Richland, WA: full frost dates · planting calendar · Washington frost dates
Climate data from the nearest NOAA station, Richland, Wa (5.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.