Kittitas, WA Weather & Growing Conditions
Tonight
49°F
Mostly Clear
Mostly clear. Low around 49, with temperatures rising to around 51 overnight. Southwest wind around 2 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 49°F | Mostly Clear | 2 mph SW | 0% |
| Saturday | 77°F | Sunny | 2 mph S | 0% |
| Saturday Night | 51°F | Mostly Clear | 0 mph | 0% |
| Sunday | 77°F | Sunny | 1 mph E | 0% |
| Sunday Night | 52°F | Mostly Clear | 0 mph | 0% |
| Monday | 77°F | Sunny | 0 to 3 mph NW | 0% |
| Monday Night | 49°F | Partly Cloudy | 3 mph NW | 0% |
| Tuesday | 73°F | Mostly Sunny | 2 to 6 mph NW | 0% |
| Tuesday Night | 48°F | Partly Cloudy | 7 mph NW | 0% |
| Wednesday | 68°F | Mostly Sunny | 5 mph NW | 1% |
| Wednesday Night | 47°F | Mostly Cloudy | 0 to 5 mph NW | 1% |
| Thursday | 65°F | Partly Sunny | 1 mph NW | 6% |
| Thursday Night | 47°F | Mostly Cloudy | 2 mph NW | 9% |
| Friday | 62°F | Mostly Sunny | 1 to 5 mph NW | 6% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Kittitas, WA
Last spring frost
May 8
First fall frost
Oct 2
Growing season
146 days
Hardiness zone
7a
Explore more for Kittitas, WA: full frost dates · planting calendar · Washington frost dates
Climate data from the nearest NOAA station, Ellensburg, Wa (8.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.