Lemhi County, ID Weather Forecast
County weather hub
Slight Chance Light Snow
Compare major city weather across Lemhi County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A slight chance of snow before 2pm. Partly sunny, with a high near 45. West wind 3 to 10 mph. Chance of precipitation is 20%.
County Weather Overview
This county weather page brings together forecast coverage for Lemhi County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 1 of 1 mapped cities in Lemhi County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Apr 17 to Apr 23, 2026
- Latest sync
- Apr 17, 2026 10:53 AM MDT
- Forecast office
- MSO
- Source
- NOAA / NWS
Daily Outlook
This Week in Lemhi County
Monday looks like the warmest upcoming period in Lemhi County at 73 degrees F.
Tonight is the coolest period ahead with temperatures near 25 degrees F.
The strongest winds are forecast for Tuesday at about 5 to 16 mph S.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 17, 2026 10:53 AM MDT
- Coverage
- 8 days
- Time zone
- America/Boise
- Forecast office
- MSO
- Radar station
- KSFX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 25. West southwest wind 2 to 10 mph.
Mostly sunny, with a high near 58. South wind 2 to 8 mph.
Partly cloudy, with a low around 33. South southwest wind 5 to 8 mph.
Mostly sunny, with a high near 68. South wind 3 to 8 mph.
Mostly cloudy, with a low around 41.
Mostly sunny, with a high near 73.
Partly cloudy, with a low around 45.
Mostly sunny, with a high near 73.
A slight chance of rain after midnight. Mostly cloudy, with a low around 45.
A chance of rain. Partly sunny, with a high near 62.
A chance of rain. Mostly cloudy, with a low around 39.
A chance of rain. Mostly cloudy, with a high near 56.
A chance of rain before midnight, then a slight chance of rain and snow. Mostly cloudy, with a low around 33.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Apr 17
|
Slight Chance Light Snow
|
45°F |
3 to 10 mph
W
|
|
Tonight
Apr 17
|
Partly Cloudy
|
25°F |
2 to 10 mph
WSW
|
|
Saturday
Apr 18
|
Mostly Sunny
|
58°F |
2 to 8 mph
S
|
|
Saturday Night
Apr 18
|
Partly Cloudy
|
33°F |
5 to 8 mph
SSW
|
|
Sunday
Apr 19
|
Mostly Sunny
|
68°F |
3 to 8 mph
S
|
|
Sunday Night
Apr 19
|
Mostly Cloudy
|
41°F |
3 to 8 mph
SSW
|
|
Monday
Apr 20
|
Mostly Sunny
|
73°F |
2 to 12 mph
S
|
|
Monday Night
Apr 20
|
Partly Cloudy
|
45°F |
5 to 12 mph
SSW
|
|
Tuesday
Apr 21
|
Mostly Sunny
|
73°F |
5 to 16 mph
S
|
|
Tuesday Night
Apr 21
|
Mostly Cloudy then Slight Chance Light Rain
|
45°F |
5 to 14 mph
SSW
|
|
Wednesday
Apr 22
|
Chance Light Rain
|
62°F |
5 to 14 mph
SW
|
|
Wednesday Night
Apr 22
|
Chance Light Rain
|
39°F |
5 to 12 mph
WSW
|
|
Thursday
Apr 23
|
Chance Light Rain
|
56°F |
5 to 13 mph
WNW
|
|
Thursday Night
Apr 23
|
Chance Light Rain then Slight Chance Rain And Snow
|
33°F |
5 to 12 mph
NNW
|
Major City Forecasts
Live forecast snapshots for major cities across Lemhi County.
Coverage
Forecast coverage currently spans 1 of 1 mapped cities in Lemhi County.
Largest mapped city population in this region: 3,169.
