South Cle Elum, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for South Cle Elum, a town in Kittitas County, Washington.
Overnight
30°F
Patchy Fog
Patchy fog before 4am, then patchy fog and patchy freezing fog. Mostly clear. Low around 30, with temperatures rising to around 32 overnight. Wind around 0 mph.
7-day forecast for South Cle Elum
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 30°F | Patchy Fog | 0 mph | 2% |
| Wednesday | 53°F | Patchy Fog then Mostly Sunny | 0 to 3 mph E | 8% |
| Wednesday Night | 34°F | Rain Showers | 0 mph | 79% |
| Thursday | 51°F | Patchy Fog then Mostly Sunny | 0 to 6 mph NW | 20% |
| Thursday Night | 31°F | Patchy Fog then Chance Rain Showers | 1 mph NW | 30% |
| Friday | 51°F | Chance Rain Showers | 1 mph N | 42% |
| Friday Night | 35°F | Chance Rain Showers then Patchy Fog | 0 mph | 41% |
| Saturday | 55°F | Patchy Fog then Partly Sunny | 0 to 5 mph E | 9% |
| Saturday Night | 35°F | Rain Showers Likely | 0 to 3 mph E | 60% |
| Sunday | 51°F | Chance Rain Showers | 0 to 3 mph NW | 44% |
| Sunday Night | 31°F | Mostly Cloudy | 2 mph NW | 7% |
| Monday | 51°F | Slight Chance Rain Showers | 2 mph E | 24% |
| Monday Night | 32°F | Chance Rain Showers | 1 mph NE | 40% |
| Tuesday | 52°F | Chance Rain Showers | 1 mph E | 40% |
Forecast source: National Weather Service (api.weather.gov) for South Cle Elum (47.186, -120.953). Updated through the day.
Growing snapshot for South Cle Elum
Last spring frost
May 13
First fall frost
Sep 25
Growing season
132 days
Hardiness zone
7a
More local growing data for South Cle Elum: nearby ZIP 98943 weather · frost dates · planting calendar · Washington frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Cle Elum, Wa (2.5 mi from South Cle Elum). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.