West Richland, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for West Richland, a city in Benton County, Washington.
Overnight
56°F
Areas Of Smoke
Areas of smoke. Clear. Low around 56, with temperatures rising to around 58 overnight. Northwest wind around 3 mph.
7-day forecast for West Richland
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 56°F | Areas Of Smoke | 3 mph NW | 0% |
| Tuesday | 89°F | Smoke | 3 to 7 mph N | 0% |
| Tuesday Night | 59°F | Areas Of Smoke | 1 to 6 mph NW | 0% |
| Wednesday | 94°F | Areas Of Smoke | 3 mph N | 0% |
| Wednesday Night | 62°F | Areas Of Smoke then Clear | 2 mph SW | 0% |
| Thursday | 100°F | Sunny | 5 mph SW | 0% |
| Thursday Night | 65°F | Clear | 6 mph SW | 0% |
| Friday | 98°F | Sunny | 7 mph SW | 0% |
| Friday Night | 64°F | Clear | 5 to 9 mph W | 0% |
| Saturday | 95°F | Sunny | 7 mph SW | 0% |
| Saturday Night | 62°F | Mostly Clear | 6 to 9 mph W | 0% |
| Sunday | 90°F | Sunny | 6 mph SW | 0% |
| Sunday Night | 60°F | Mostly Clear | 8 mph W | 0% |
| Monday | 89°F | Sunny | 6 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov) for West Richland (46.314, -119.388). Updated through the day.
Growing snapshot for West Richland
Last spring frost
Apr 6
First fall frost
Oct 24
Growing season
200 days
Hardiness zone
7b
More local growing data for West Richland: nearby ZIP 99353 weather · frost dates · planting calendar · Washington frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Richland, Wa (5.9 mi from West Richland). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.