Lemhi County Airport (SMN) Weather 11/23/2025
Today
50
Patchy Fog then Sunny
Tonight
24
Partly Cloudy
Sunday
49
Mostly Sunny
Sunday Night
24
Slight Chance Rain
Monday
40
Slight Chance Snow then Mostly Sunny
Monday Night
15
Mostly Cloudy
Tuesday
35
Partly Sunny
Tuesday Night
20
Mostly Cloudy
Wednesday
41
Slight Chance Rain/Snow
Wednesday Night
27
Chance Rain/Snow then Chance Rain
Thanksgiving Day
48
Slight Chance Rain then Partly Sunny
Thursday Night
28
Mostly Cloudy
Friday
45
Chance Rain/Snow
Weekly Forecast
Today
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 50. Calm wind.
Tonight
Partly cloudy, with a low around 24. Calm wind becoming south southeast around 5 mph.
Sunday
Mostly sunny, with a high near 49. Calm wind.
Sunday Night
A 20 percent chance of rain after 11pm. Mostly cloudy, with a low around 24. Calm wind becoming south southwest 5 to 8 mph in the evening. Winds could gust as high as 20 mph.
Monday
A 20 percent chance of snow before 11am. Partly sunny, with a high near 40. West wind 8 to 15 mph, with gusts as high as 32 mph.
Monday Night
Mostly cloudy, with a low around 15.
Tuesday
Partly sunny, with a high near 35.
Tuesday Night
Mostly cloudy, with a low around 20.
Wednesday
A slight chance of snow before 11am, then a slight chance of rain and snow between 11am and 5pm, then a slight chance of rain after 5pm. Snow level rising to 5200 feet in the afternoon. Mostly cloudy, with a high near 41.
Wednesday Night
A chance of rain before 8pm, then a chance of rain and snow between 8pm and 11pm, then a chance of rain after 11pm. Mostly cloudy, with a low around 27.
Thanksgiving Day
A slight chance of rain. Mostly cloudy, with a high near 48.
Thursday Night
Mostly cloudy, with a low around 28.
Friday
A chance of rain and snow. Mostly cloudy, with a high near 45.