Salmon, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Salmon, a city in Lemhi County, Idaho.
Tonight
26°F
Mostly Cloudy
Mostly cloudy, with a low around 26. Wind around 0 mph.
7-day forecast for Salmon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 26°F | Mostly Cloudy | 0 mph | 0% |
| Wednesday | 55°F | Mostly Sunny | 0 mph | 0% |
| Wednesday Night | 25°F | Mostly Clear | 1 mph S | 0% |
| Thursday | 52°F | Partly Sunny | 1 mph WSW | 13% |
| Thursday Night | 24°F | Partly Cloudy | 1 mph W | 12% |
| Friday | 55°F | Mostly Sunny | 2 mph S | 1% |
| Friday Night | 28°F | Partly Cloudy | 5 mph SSW | 1% |
| Saturday | 60°F | Mostly Sunny | 2 mph S | 1% |
| Saturday Night | 31°F | Partly Cloudy | 2 to 15 mph S | 2% |
| Sunday | 63°F | Mostly Sunny | 5 to 9 mph SSW | 2% |
| Sunday Night | 31°F | Mostly Cloudy | 2 to 7 mph SSW | 2% |
| Monday | 60°F | Partly Sunny | 2 mph S | 3% |
| Monday Night | 32°F | Mostly Cloudy | 2 to 7 mph SW | 5% |
| Tuesday | 60°F | Mostly Sunny | 3 mph SSW | 7% |
Forecast source: National Weather Service (api.weather.gov) for Salmon (45.174, -113.895). Updated through the day.
Growing snapshot for Salmon
Last spring frost
May 17
First fall frost
Sep 24
Growing season
127 days
Hardiness zone
5b
More local growing data for Salmon: nearby ZIP 83467 weather · frost dates · planting calendar · Idaho frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Salmon-Ksra, Id (9.1 mi from Salmon). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.