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 >

Current conditions at

Lewistown Divide MT-200 MP 90.3 (MTLEW)

Lat: 47.07579°NLon: 109.26247°WElev: 4723.0ft.

38°F

3°C

Humidity	68%
Wind Speed	SE 5 MPH
Barometer	NA
Dewpoint	28°F (-2°C)
Visibility	NA
Wind Chill	34°F (1°C)
Last update	24 Dec 12:30 PM MST

More Information:

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

Extended Forecast for

9 Miles ENE Lewistown MT

This Afternoon
High: 45 °F
Increasing
Clouds
Tonight
Low: 31 °F
Chance Wintry
Mix
Christmas Day
High: 43 °F
Chance
Rain/Freezing
Rain then
Slight Chance
Rain
Thursday Night
Low: 35 °F
Mostly Cloudy
Friday
High: 42 °F
Partly Sunny
Friday Night
Low: 5 °F
Slight Chance
Snow
Saturday
High: 19 °F
Slight Chance
Snow and
Breezy then
Partly Sunny
Saturday Night
Low: 4 °F
Partly Cloudy
Sunday
High: 26 °F
Partly Sunny

Detailed Forecast

This Afternoon

Increasing clouds, with a high near 45. South wind around 9 mph, with gusts as high as 18 mph.

Tonight

A chance of rain and snow before 4am, then a chance of rain, snow, and freezing rain between 4am and 5am, then a chance of snow and freezing rain after 5am. Mostly cloudy, with a low around 31. South wind 7 to 9 mph becoming west southwest after midnight. Chance of precipitation is 50%. Little or no snow accumulation expected.

Christmas Day

A chance of rain or freezing rain before 8am, then a chance of freezing rain between 8am and 9am, then a chance of rain after 9am. Partly sunny, with a high near 43. West southwest wind around 7 mph. Chance of precipitation is 40%.

Thursday Night

Mostly cloudy, with a low around 35. Southwest wind 7 to 14 mph, with gusts as high as 22 mph.

Friday

Partly sunny, with a high near 42. Southwest wind around 14 mph, with gusts as high as 28 mph.

Friday Night

A 20 percent chance of snow after 11pm. Mostly cloudy, with a low around 5. West southwest wind 15 to 21 mph, with gusts as high as 37 mph.

Saturday

A 20 percent chance of snow before 11am. Partly sunny, with a high near 19. Breezy, with a west northwest wind 17 to 22 mph, with gusts as high as 37 mph.

Saturday Night

Partly cloudy, with a low around 4. West wind 9 to 15 mph, with gusts as high as 28 mph.

Sunday

Partly sunny, with a high near 26.

Sunday Night

Partly cloudy, with a low around 21.

Monday

Mostly sunny, with a high near 42.

Monday Night

Mostly cloudy, with a low around 31.

Tuesday

Mostly cloudy, with a high near 43.