Richland, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Richland, a city in Benton County, Washington.
Tonight
55°F
Mostly Clear
Mostly clear, with a low around 55. Southwest wind around 1 mph.
7-day forecast for Richland
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 55°F | Mostly Clear | 1 mph SW | 0% |
| Saturday | 82°F | Sunny | 3 mph SE | 0% |
| Saturday Night | 56°F | Mostly Clear | 0 to 3 mph SE | 0% |
| Sunday | 84°F | Sunny | 0 to 3 mph N | 0% |
| Sunday Night | 57°F | Clear | 0 to 3 mph NE | 0% |
| Monday | 86°F | Sunny | 0 to 3 mph SW | 0% |
| Monday Night | 58°F | Partly Cloudy | 3 mph SW | 0% |
| Tuesday | 82°F | Sunny | 3 mph SW | 0% |
| Tuesday Night | 55°F | Partly Cloudy | 3 mph SW | 0% |
| Wednesday | 78°F | Mostly Sunny | 5 mph SW | 0% |
| Wednesday Night | 54°F | Partly Cloudy | 1 to 5 mph SW | 0% |
| Thursday | 75°F | Mostly Sunny | 1 to 5 mph NW | 1% |
| Thursday Night | 54°F | Partly Cloudy | 1 to 5 mph NW | 5% |
| Friday | 73°F | Mostly Sunny | 1 to 7 mph SW | 10% |
Forecast source: National Weather Service (api.weather.gov) for Richland (46.284, -119.294). Updated through the day.
Growing snapshot for Richland
Last spring frost
Apr 6
First fall frost
Oct 24
Growing season
200 days
Hardiness zone
7b
More local growing data for Richland: nearby ZIP 99352 weather · frost dates · planting calendar · Washington frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Richland, Wa (4.8 mi from Richland). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.