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
35°F
Patchy Fog
Patchy fog. Mostly clear, with a low around 35. South wind around 3 mph.
7-day forecast for West Richland
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 35°F | Patchy Fog | 3 mph S | 1% |
| Wednesday | 53°F | Patchy Fog then Sunny | 2 mph S | 1% |
| Wednesday Night | 38°F | Chance Rain Showers | 2 to 7 mph SW | 37% |
| Thursday | 59°F | Mostly Sunny | 7 mph SW | 11% |
| Thursday Night | 37°F | Partly Cloudy then Patchy Fog | 5 mph SW | 3% |
| Friday | 56°F | Patchy Fog then Mostly Cloudy | 5 mph S | 4% |
| Friday Night | 38°F | Mostly Cloudy | 3 mph SW | 4% |
| Saturday | 57°F | Mostly Sunny | 5 mph N | 1% |
| Saturday Night | 39°F | Mostly Cloudy | 2 to 9 mph W | 3% |
| Sunday | 61°F | Partly Sunny | 5 to 10 mph SW | 3% |
| Sunday Night | 39°F | Mostly Cloudy | 5 mph W | 1% |
| Monday | 56°F | Partly Sunny | 3 mph NW | 5% |
| Monday Night | 38°F | Mostly Cloudy then Slight Chance Rain Showers | 3 mph W | 15% |
| Tuesday | 59°F | Slight Chance Rain Showers | 3 mph SW | 16% |
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 Nov 4, 2026.