Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Hazardous Weather Conditions

Winter Weather Advisory in effect from December 26, 02:00 AM MST until December 27, 08:00 PM MST

Current conditions at

Salmon, Lemhi County Airport (KSMN)

Lat: 45.11667°NLon: 113.88333°WElev: 4045.0ft.

Partly Cloudy

39°F

4°C

Humidity	80%
Wind Speed	SSE 13 MPH
Barometer	29.77 in (1008.13 mb)
Dewpoint	34°F (1°C)
Visibility	10.00 mi
Wind Chill	31°F (-1°C)
Last update	26 Dec 02:20 AM MST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

4 Miles S Salmon ID

Winter Weather Advisory until December 27, 08:00pm

Click here for hazard details and duration

Winter Weather Advisory

Winter Weather Advisory until December 27, 08:00pm
NOW until 8:00pm Sat
Winter Weather Advisory
Overnight
Low: 28 °F
Chance
Rain/Freezing
Rain
Friday
High: 41 °F
Wintry Mix
Likely then
Sunny
Friday Night
Low: 20 °F
Partly Cloudy
then Chance
Snow
Saturday
High: 31 °F
Snow Likely
Saturday Night
Low: 3 °F
Partly Cloudy
Sunday
High: 24 °F
Mostly Sunny
Sunday Night
Low: 4 °F
Mostly Clear
Monday
High: 28 °F
Mostly Sunny

Detailed Forecast

Overnight

A chance of rain, possibly mixing with freezing rain after 3am, then gradually ending. Mostly cloudy, with a low around 28. South southwest wind around 6 mph. Chance of precipitation is 50%.

Friday

Rain or freezing rain likely before 11am, then a slight chance of rain and snow between 11am and noon. Snow level 5200 feet lowering to 4000 feet in the afternoon . Mostly cloudy, then gradually becoming sunny, with a high near 41. Southwest wind 8 to 18 mph, with gusts as high as 36 mph. Chance of precipitation is 70%. Little or no ice accumulation expected. Little or no snow accumulation expected.

Friday Night

A 50 percent chance of snow, mainly after 1am. Increasing clouds, with a low around 20. West southwest wind 14 to 16 mph, with gusts as high as 34 mph. New snow accumulation of less than a half inch possible.

Saturday

Snow likely, mainly before 11am. Mostly cloudy, with a high near 31. West northwest wind 10 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

Saturday Night

Partly cloudy, with a low around 3. Northwest wind 5 to 7 mph becoming calm in the evening.

Sunday

Mostly sunny, with a high near 24.

Sunday Night

Mostly clear, with a low around 4.

Monday

Mostly sunny, with a high near 28.

Monday Night

Mostly cloudy, with a low around 13.

Tuesday

Partly sunny, with a high near 35.