Elk River, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Elk River, a city in Clearwater County, Idaho.
Tonight
49°F
Mostly Cloudy
Mostly cloudy, with a low around 49. Northeast wind around 2 mph.
7-day forecast for Elk River
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 49°F | Mostly Cloudy | 2 mph NE | 6% |
| Saturday | 73°F | Sunny | 0 to 3 mph SSW | 3% |
| Saturday Night | 49°F | Mostly Clear | 2 mph NNE | 3% |
| Sunday | 76°F | Sunny | 2 mph SSE | 0% |
| Sunday Night | 50°F | Clear | 2 mph NE | 0% |
| Monday | 78°F | Sunny | 2 mph SSE | 0% |
| Monday Night | 51°F | Mostly Clear | 2 mph NNE | 0% |
| Tuesday | 76°F | Sunny | 2 mph SSE | 2% |
| Tuesday Night | 50°F | Mostly Clear | 2 mph NNE | 2% |
| Wednesday | 73°F | Sunny | 3 mph W | 3% |
| Wednesday Night | 48°F | Partly Cloudy | 2 mph N | 3% |
| Thursday | 73°F | Mostly Sunny | 2 mph NNW | 2% |
| Thursday Night | 49°F | Partly Cloudy | 2 mph N | 4% |
| Friday | 69°F | Mostly Sunny | 3 mph NW | 12% |
Forecast source: National Weather Service (api.weather.gov) for Elk River (46.783, -116.181). Updated through the day.
Growing snapshot for Elk River
Last spring frost
May 16
First fall frost
Sep 23
Growing season
128 days
Hardiness zone
6b
More local growing data for Elk River: nearby ZIP 83827 weather · frost dates · planting calendar · Idaho frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Elk Rvr, Id (0.4 mi from Elk River). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.