Tetonia, ID Weather & Growing Conditions
Tonight
40°F
Scattered Rain Showers
Scattered rain showers before 4am. Mostly cloudy. Low around 40, with temperatures rising to around 42 overnight. West wind around 2 mph. Chance of precipitation is 30%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 40°F | Scattered Rain Showers | 2 mph W | 30% |
| Sunday | 53°F | Mostly Sunny | 0 to 5 mph NNW | 6% |
| Sunday Night | 41°F | Mostly Clear | 3 mph SW | 0% |
| Monday | 60°F | Sunny | 1 to 6 mph SSW | 0% |
| Monday Night | 45°F | Mostly Clear | 6 mph SE | 0% |
| Tuesday | 63°F | Mostly Sunny | 1 to 7 mph SSW | 2% |
| Tuesday Night | 48°F | Slight Chance Showers And Thunderstorms then Chance Light Rain | 6 mph SSE | 30% |
| Wednesday | 61°F | Mostly Sunny | 6 mph SSW | 14% |
| Wednesday Night | 47°F | Mostly Clear | 5 to 9 mph SSW | 3% |
| Thursday | 65°F | Sunny | 3 to 9 mph S | 3% |
| Thursday Night | 50°F | Mostly Clear | 3 to 10 mph SSE | 1% |
| Friday | 65°F | Mostly Sunny | 7 to 12 mph S | 4% |
| Friday Night | 49°F | Partly Cloudy | 6 to 10 mph S | 12% |
| Saturday | 62°F | Slight Chance Light Rain then Slight Chance Showers And Thunderstorms | 6 to 9 mph S | 20% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Tetonia, ID
Last spring frost
Jun 15
First fall frost
Sep 7
Growing season
85 days
Hardiness zone
5a
Explore more for Tetonia, ID: full frost dates · planting calendar · Idaho frost dates
Climate data from the nearest NOAA station, Tetonia Exp Stn, Id (6.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.