Moses Lake, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Moses Lake, a city in Grant County, Washington.
Tonight
31°F
Mostly Clear then Patchy Fog
Patchy fog after 2am. Mostly clear. Low around 31, with temperatures rising to around 33 overnight. Northeast wind around 2 mph.
7-day forecast for Moses Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 31°F | Mostly Clear then Patchy Fog | 2 mph NE | 3% |
| Wednesday | 53°F | Patchy Fog then Sunny | 3 mph SE | 3% |
| Wednesday Night | 37°F | Chance Rain Showers | 3 mph SE | 33% |
| Thursday | 57°F | Patchy Fog then Mostly Sunny | 5 mph SW | 8% |
| Thursday Night | 36°F | Partly Cloudy | 5 mph SE | 4% |
| Friday | 54°F | Mostly Cloudy | 1 to 6 mph SE | 4% |
| Friday Night | 34°F | Mostly Cloudy | 5 mph SE | 6% |
| Saturday | 59°F | Mostly Sunny | 3 mph N | 3% |
| Saturday Night | 36°F | Mostly Cloudy | 2 to 7 mph W | 2% |
| Sunday | 59°F | Mostly Cloudy | 5 to 10 mph SW | 2% |
| Sunday Night | 34°F | Mostly Cloudy | 6 mph W | 1% |
| Monday | 55°F | Partly Sunny | 5 mph N | 14% |
| Monday Night | 34°F | Slight Chance Rain Showers | 3 mph NE | 18% |
| Tuesday | 58°F | Slight Chance Rain Showers | 5 mph SE | 18% |
Forecast source: National Weather Service (api.weather.gov) for Moses Lake (47.128, -119.276). Updated through the day.
Growing snapshot for Moses Lake
Last spring frost
Apr 27
First fall frost
Oct 8
Growing season
165 days
Hardiness zone
7a
More local growing data for Moses Lake: nearby ZIP 98837 weather · frost dates · planting calendar · Washington frost dates
Nearby towns & communities
Beverly
Cascade Valley
Crescent Bar
Electric City
Ephrata
George
Grand Coulee
Hartline
Krupp
Lakeview
Marine View
Moses Lake North
Quincy
Royal City
Schwana
Soap Lake
Sunland Estates
Vantage
Warden
Wheeler
Wilson Creek
Climate data from the nearest NOAA station, Moses Lake Grant Co Ap, Wa (4.2 mi from Moses Lake). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.