Richland, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Richland, a city in Benton County, Washington.
This Afternoon
54°F
Mostly Cloudy
Mostly cloudy. High near 54, with temperatures falling to around 49 in the afternoon. West wind around 3 mph.
7-day forecast for Richland
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 54°F | Mostly Cloudy | 3 mph W | 2% |
| Tonight | 35°F | Partly Cloudy then Patchy Fog | 1 to 5 mph SW | 2% |
| Wednesday | 54°F | Patchy Fog then Sunny | 2 mph S | 2% |
| Wednesday Night | 41°F | Chance Rain Showers | 5 mph S | 29% |
| Thursday | 60°F | Patchy Fog then Mostly Sunny | 6 mph SW | 8% |
| Thursday Night | 40°F | Partly Cloudy | 1 to 5 mph S | 10% |
| Friday | 58°F | Mostly Cloudy | 1 to 6 mph S | 10% |
| Friday Night | 41°F | Mostly Cloudy | 1 to 6 mph SW | 4% |
| Saturday | 59°F | Partly Sunny | 1 to 5 mph NW | 0% |
| Saturday Night | 42°F | Mostly Cloudy | 2 to 6 mph W | 8% |
| Sunday | 62°F | Partly Sunny | 6 to 10 mph SW | 10% |
| Sunday Night | 40°F | Mostly Cloudy | 2 to 6 mph W | 9% |
| Monday | 57°F | Mostly Cloudy | 3 mph NW | 7% |
| Monday Night | 41°F | Mostly Cloudy then Chance Rain Showers | 3 mph SW | 28% |
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 Nov 4, 2026.