Lemhi County Airport (SMN) Weather 09/23/2025
Tonight
45
Partly Cloudy
Saturday
81
Sunny
Saturday Night
47
Mostly Clear
Sunday
75
Mostly Sunny then Chance T-storms
Sunday Night
41
Chance Showers
Monday
68
Mostly Sunny
Monday Night
35
Clear
Tuesday
75
Areas Frost then Sunny
Tuesday Night
41
Clear
Wednesday
80
Sunny
Wednesday Night
43
Mostly Clear
Thursday
75
Mostly Sunny then Slight Chance Rain
Thursday Night
41
Partly Cloudy
Weekly Forecast
Tonight
Partly cloudy, with a low around 45. Calm wind.
Saturday
Sunny, with a high near 81. Calm wind becoming west northwest 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Mostly clear, with a low around 47. West northwest wind 5 to 10 mph becoming light and variable. Winds could gust as high as 22 mph.
Sunday
A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 75. Light and variable wind becoming west 10 to 15 mph in the morning. Winds could gust as high as 31 mph.
Sunday Night
A chance of showers and thunderstorms before midnight, then a chance of rain after midnight. Mostly cloudy, with a low around 41. Northwest wind 12 to 17 mph decreasing to 6 to 11 mph in the evening. Winds could gust as high as 34 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
Mostly sunny, with a high near 68.
Monday Night
Clear, with a low around 35.
Tuesday
Areas of frost before 7am. Otherwise, sunny, with a high near 75.
Tuesday Night
Clear, with a low around 41.
Wednesday
Sunny, with a high near 80.
Wednesday Night
Mostly clear, with a low around 43.
Thursday
A slight chance of rain. Mostly sunny, with a high near 75.
Thursday Night
Partly cloudy, with a low around 41.