Tieton, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Tieton, a city in Yakima County, Washington.
Tonight
35°F
Mostly Clear
Mostly clear, with a low around 35. West wind 2 to 6 mph.
7-day forecast for Tieton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 35°F | Mostly Clear | 2 to 6 mph W | 2% |
| Wednesday | 51°F | Sunny | 1 to 6 mph SE | 6% |
| Wednesday Night | 38°F | Chance Rain Showers | 2 mph W | 50% |
| Thursday | 54°F | Patchy Fog then Sunny | 5 mph W | 0% |
| Thursday Night | 37°F | Mostly Cloudy | 1 to 7 mph W | 14% |
| Friday | 53°F | Mostly Cloudy | 2 mph W | 14% |
| Friday Night | 39°F | Mostly Cloudy | 1 to 6 mph W | 3% |
| Saturday | 54°F | Partly Sunny | 0 to 5 mph E | 3% |
| Saturday Night | 41°F | Chance Rain Showers | 2 mph SW | 31% |
| Sunday | 55°F | Chance Rain Showers then Partly Sunny | 2 to 8 mph W | 31% |
| Sunday Night | 37°F | Mostly Cloudy | 5 mph NW | 9% |
| Monday | 51°F | Partly Sunny then Slight Chance Rain Showers | 2 mph NE | 23% |
| Monday Night | 38°F | Chance Rain Showers | 1 mph E | 39% |
| Tuesday | 53°F | Chance Rain Showers | 2 mph E | 39% |
Forecast source: National Weather Service (api.weather.gov) for Tieton (46.703, -120.756). Updated through the day.
Growing snapshot for Tieton
Last spring frost
Apr 8
First fall frost
Oct 23
Growing season
196 days
Hardiness zone
7a
More local growing data for Tieton: nearby ZIP 98923 weather · frost dates · planting calendar · Washington frost dates
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Climate data from the nearest NOAA station, Yakima #2, Wa (9 mi from Tieton). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.