Grangeville, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Grangeville, a city in Idaho County, Idaho.
This Afternoon
68°F
Slight Chance Rain Showers
A slight chance of rain showers after 5pm. Partly sunny, with a high near 68. North northwest wind around 7 mph. Chance of precipitation is 20%.
7-day forecast for Grangeville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Slight Chance Rain Showers | 7 mph NNW | 20% |
| Tonight | 50°F | Chance Rain Showers | 2 mph S | 39% |
| Saturday | 68°F | Sunny | 0 to 5 mph NE | 5% |
| Saturday Night | 48°F | Mostly Clear | 3 mph SE | 0% |
| Sunday | 74°F | Sunny | 3 mph NNE | 0% |
| Sunday Night | 50°F | Clear | 1 to 5 mph SSE | 0% |
| Monday | 77°F | Sunny | 1 to 5 mph NW | 0% |
| Monday Night | 51°F | Mostly Clear | 0 to 5 mph SSE | 0% |
| Tuesday | 75°F | Sunny | 0 to 3 mph N | 1% |
| Tuesday Night | 50°F | Partly Cloudy | 0 to 3 mph SE | 1% |
| Wednesday | 72°F | Sunny | 0 to 5 mph E | 1% |
| Wednesday Night | 49°F | Partly Cloudy | 1 to 5 mph ESE | 2% |
| Thursday | 77°F | Sunny | 2 mph SSE | 2% |
| Thursday Night | 51°F | Partly Cloudy | 2 to 7 mph SSE | 1% |
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 Sep 18, 2026.