Donnelly, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Donnelly, a city in Valley County, Idaho.
Tonight
26°F
Mostly Cloudy then Patchy Fog
Patchy fog after 5am. Mostly cloudy, with a low around 26. North wind around 1 mph.
7-day forecast for Donnelly
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 26°F | Mostly Cloudy then Patchy Fog | 1 mph N | 9% |
| Wednesday | 52°F | Areas Of Fog then Sunny | 2 mph NNW | 3% |
| Wednesday Night | 25°F | Partly Cloudy then Patchy Fog | 2 mph SE | 18% |
| Thursday | 43°F | Areas Of Fog then Chance Rain Showers | 2 mph WSW | 28% |
| Thursday Night | 22°F | Partly Cloudy then Areas Of Fog | 1 mph SE | 2% |
| Friday | 47°F | Areas Of Fog then Partly Sunny | 0 to 3 mph S | 3% |
| Friday Night | 26°F | Partly Cloudy | 0 to 3 mph SE | 3% |
| Saturday | 55°F | Patchy Fog then Mostly Sunny | 0 to 3 mph SSE | 1% |
| Saturday Night | 29°F | Partly Cloudy | 1 to 8 mph SSE | 0% |
| Sunday | 54°F | Partly Sunny | 1 to 6 mph S | 3% |
| Sunday Night | 28°F | Mostly Cloudy then Areas Of Fog | 2 mph ESE | 4% |
| Monday | 54°F | Areas Of Fog then Partly Sunny | 2 mph SE | 10% |
| Monday Night | 29°F | Mostly Cloudy then Patchy Fog | 2 mph SSE | 10% |
| Tuesday | 54°F | Slight Chance Rain Showers | 2 mph S | 16% |
Forecast source: National Weather Service (api.weather.gov) for Donnelly (44.733, -116.087). Updated through the day.
Growing snapshot for Donnelly
Last spring frost
May 30
First fall frost
Sep 19
Growing season
110 days
Hardiness zone
5a
More local growing data for Donnelly: nearby ZIP 83615 weather · frost dates · planting calendar · Idaho frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Cascade 1 Nw, Id (12.6 mi from Donnelly). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.