Elk River, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Elk River, a city in Clearwater County, Idaho.
Overnight
44°F
Patchy Smoke
Patchy smoke. Mostly clear, with a low around 44. North northeast wind around 2 mph.
7-day forecast for Elk River
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 44°F | Patchy Smoke | 2 mph NNE | 0% |
| Tuesday | 80°F | Areas Of Smoke | 3 mph SSE | 0% |
| Tuesday Night | 50°F | Patchy Smoke then Mostly Clear | 3 mph NNE | 0% |
| Wednesday | 85°F | Patchy Smoke then Sunny | 2 mph SSW | 0% |
| Wednesday Night | 52°F | Clear | 3 mph N | 0% |
| Thursday | 90°F | Sunny | 3 mph SSE | 0% |
| Thursday Night | 56°F | Clear | 3 mph NNE | 0% |
| Friday | 89°F | Sunny | 1 to 7 mph NNW | 0% |
| Friday Night | 55°F | Clear | 1 to 7 mph NNE | 0% |
| Saturday | 85°F | Sunny | 1 to 6 mph WNW | 0% |
| Saturday Night | 54°F | Mostly Clear | 2 to 6 mph NW | 0% |
| Sunday | 82°F | Sunny | 1 to 5 mph WNW | 0% |
| Sunday Night | 52°F | Mostly Clear | 1 to 5 mph NNW | 0% |
| Monday | 81°F | Sunny | 0 to 5 mph NW | 0% |
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 Aug 4, 2026.