Ellensburg, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Ellensburg, a city in Kittitas County, Washington.
Today
79°F
Sunny
Sunny. High near 79, with temperatures falling to around 77 in the afternoon. East wind around 2 mph.
7-day forecast for Ellensburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 79°F | Sunny | 2 mph E | 0% |
| Tonight | 51°F | Mostly Clear | 1 mph NW | 0% |
| Sunday | 79°F | Sunny | 2 mph E | 0% |
| Sunday Night | 52°F | Mostly Clear | 0 mph | 0% |
| Monday | 80°F | Sunny | 0 to 6 mph NW | 0% |
| Monday Night | 50°F | Partly Cloudy | 8 mph NW | 0% |
| Tuesday | 75°F | Mostly Sunny | 5 to 10 mph NW | 0% |
| Tuesday Night | 48°F | Partly Cloudy | 7 to 12 mph NW | 0% |
| Wednesday | 70°F | Mostly Sunny | 6 to 9 mph NW | 1% |
| Wednesday Night | 47°F | Mostly Cloudy | 1 to 9 mph NW | 1% |
| Thursday | 67°F | Partly Sunny | 0 to 3 mph NW | 7% |
| Thursday Night | 46°F | Mostly Cloudy | 5 mph NW | 10% |
| Friday | 64°F | Mostly Sunny | 5 mph NW | 8% |
| Friday Night | 43°F | Partly Cloudy | 0 to 6 mph NW | 4% |
Forecast source: National Weather Service (api.weather.gov) for Ellensburg (47.001, -120.550). Updated through the day.
Growing snapshot for Ellensburg
Last spring frost
May 8
First fall frost
Oct 2
Growing season
146 days
Hardiness zone
6b
More local growing data for Ellensburg: nearby ZIP 98934 weather · frost dates · planting calendar · Washington frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Ellensburg, Wa (5.7 mi from Ellensburg). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.