Grangeville, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Grangeville, a city in Idaho County, Idaho.
Overnight
45°F
Areas Of Smoke
Areas of smoke. Clear, with a low around 45. South wind around 1 mph.
7-day forecast for Grangeville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 45°F | Areas Of Smoke | 1 mph S | 0% |
| Tuesday | 80°F | Areas Of Smoke | 0 to 7 mph NNE | 0% |
| Tuesday Night | 51°F | Areas Of Smoke | 2 to 6 mph S | 0% |
| Wednesday | 87°F | Areas Of Smoke | 1 to 5 mph NNE | 0% |
| Wednesday Night | 55°F | Clear | 5 mph SE | 0% |
| Thursday | 93°F | Sunny | 1 to 7 mph WNW | 0% |
| Thursday Night | 60°F | Clear | 2 to 7 mph SW | 0% |
| Friday | 93°F | Sunny | 2 to 12 mph W | 0% |
| Friday Night | 59°F | Clear | 2 to 12 mph SW | 0% |
| Saturday | 89°F | Sunny | 1 to 10 mph WNW | 0% |
| Saturday Night | 58°F | Mostly Clear | 0 to 10 mph W | 0% |
| Sunday | 85°F | Sunny | 0 to 10 mph NNW | 0% |
| Sunday Night | 55°F | Mostly Clear | 0 to 10 mph N | 0% |
| Monday | 84°F | Sunny | 0 to 9 mph NNW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Grangeville (45.926, -116.122). Updated through the day.
Growing snapshot for Grangeville
Last spring frost
May 9
First fall frost
Oct 3
Growing season
146 days
Hardiness zone
6b
More local growing data for Grangeville: nearby ZIP 83530 weather · frost dates · planting calendar · Idaho frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Grangeville, Id (4.9 mi from Grangeville). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.