Kittitas, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Kittitas, a city in Kittitas County, Washington.
Tonight
49°F
Mostly Clear
Mostly clear. Low around 49, with temperatures rising to around 51 overnight. Northwest wind around 2 mph.
7-day forecast for Kittitas
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 49°F | Mostly Clear | 2 mph NW | 0% |
| Saturday | 78°F | Sunny | 0 mph | 0% |
| Saturday Night | 50°F | Mostly Clear | 0 mph | 0% |
| Sunday | 78°F | Sunny | 0 mph | 0% |
| Sunday Night | 51°F | Mostly Clear | 0 mph | 0% |
| Monday | 78°F | Sunny | 0 to 3 mph NW | 0% |
| Monday Night | 49°F | Partly Cloudy | 5 mph NW | 0% |
| Tuesday | 73°F | Mostly Sunny | 1 to 6 mph NW | 0% |
| Tuesday Night | 48°F | Partly Cloudy | 7 mph NW | 0% |
| Wednesday | 69°F | Mostly Sunny | 5 mph NW | 1% |
| Wednesday Night | 47°F | Mostly Cloudy | 0 to 5 mph NW | 1% |
| Thursday | 66°F | Partly Sunny | 1 mph NW | 6% |
| Thursday Night | 46°F | Mostly Cloudy | 1 mph NW | 9% |
| Friday | 63°F | Mostly Sunny | 2 mph NW | 7% |
Forecast source: National Weather Service (api.weather.gov) for Kittitas (46.984, -120.419). Updated through the day.
Growing snapshot for Kittitas
Last spring frost
May 8
First fall frost
Oct 2
Growing season
146 days
Hardiness zone
6b
More local growing data for Kittitas: 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 Kittitas). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.