Lemhi County Airport (SMN) Weather 10/14/2025
Today
66
Frost then Sunny
Tonight
32
Mostly Clear then Frost
Wednesday
68
Frost then Sunny
Wednesday Night
35
Mostly Clear then Areas Frost
Thursday
72
Areas Frost then Sunny
Thursday Night
38
Mostly Clear
Friday
72
Sunny then Slight Chance Rain
Friday Night
41
Rain Likely
Saturday
58
Rain Likely
Saturday Night
33
Chance Rain
Sunday
49
Chance Rain
Sunday Night
28
Chance Rain then Slight Chance Rain/Snow
Columbus Day
50
Slight Chance Rain/Snow then Mostly Sunny
Weekly Forecast
Today
Widespread frost before 10am. Otherwise, sunny, with a high near 66. Light and variable wind.
Tonight
Widespread frost, mainly after 5am. Otherwise, mostly clear, with a low around 32. Light southeast wind increasing to 5 to 10 mph in the evening. Winds could gust as high as 23 mph.
Wednesday
Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 68. South wind 5 to 8 mph, with gusts as high as 18 mph.
Wednesday Night
Areas of frost after 5am. Otherwise, mostly clear, with a low around 35. South wind 6 to 9 mph, with gusts as high as 20 mph.
Thursday
Areas of frost before 9am. Otherwise, sunny, with a high near 72. Southeast wind 3 to 8 mph. Winds could gust as high as 18 mph.
Thursday Night
Mostly clear, with a low around 38.
Friday
A 20 percent chance of rain after noon. Sunny, with a high near 72.
Friday Night
Rain likely, mainly after midnight. Mostly cloudy, with a low around 41.
Saturday
Rain likely, mainly before noon. Partly sunny, with a high near 58.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 33.
Sunday
A chance of rain. Partly sunny, with a high near 49.
Sunday Night
A chance of rain and snow. Snow level 5500 feet lowering to 4700 feet after midnight . Mostly cloudy, with a low around 28.
Columbus Day
A slight chance of rain and snow. Snow level 4600 feet rising to 5700 feet in the afternoon. Partly sunny, with a high near 50.