Challis, ID Weather & Growing Conditions
Overnight
30°F
Mostly Cloudy
Mostly cloudy, with a low around 30. East wind around 2 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 30°F | Mostly Cloudy | 2 mph E | 0% |
| Wednesday | 40°F | Mostly Sunny | 3 mph S | 0% |
| Wednesday Night | 30°F | Mostly Clear | 2 to 7 mph S | 0% |
| Thursday | 38°F | Mostly Cloudy then Slight Chance Light Snow | 5 mph SW | 16% |
| Thursday Night | 27°F | Slight Chance Light Snow then Mostly Clear | 5 mph WSW | 16% |
| Friday | 40°F | Mostly Sunny | 1 to 5 mph SW | 0% |
| Friday Night | 31°F | Partly Cloudy | 1 to 6 mph SW | 0% |
| Saturday | 45°F | Sunny | 3 mph SSW | 0% |
| Saturday Night | 35°F | Partly Cloudy | 2 to 16 mph S | 0% |
| Sunday | 49°F | Mostly Sunny | 6 to 15 mph SSW | 0% |
| Sunday Night | 34°F | Partly Cloudy | 8 mph SSW | 0% |
| Monday | 47°F | Mostly Sunny | 7 mph SSW | 0% |
| Monday Night | 35°F | Partly Cloudy | 5 to 8 mph SSW | 0% |
| Tuesday | 46°F | Mostly Sunny | 6 mph SW | 6% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Challis, ID
Last spring frost
May 14
First fall frost
Sep 25
Growing season
131 days
Hardiness zone
5b
Explore more for Challis, ID: full frost dates · planting calendar · Idaho frost dates
Climate data from the nearest NOAA station, Challis Ap, Id (14.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.