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

Current conditions at

Loma US-87 MP 53.1 (MTLOM)

Lat: 47.95103°NLon: 110.50477°WElev: 2700.0ft.

unknown precip

23°F

-5°C

Humidity	NA
Wind Speed	SSW 0 MPH
Barometer	NA
Dewpoint	N/A
Visibility	NA
Last update	NA

More Information:

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

Extended Forecast for

11 Miles WSW Big Sandy MT

Winter Weather Advisory December 25, 05:39am until December 25, 09:00am

Dense Fog Advisory December 25, 05:39am until December 25, 09:00am

Click here for hazard details and duration

Winter Weather Advisory

Dense Fog Advisory

Winter Weather Advisory December 25, 05:39am until December 25, 09:00am
Dense Fog Advisory December 25, 05:39am until December 25, 09:00am
NOW: Multiple hazards in effect
Click HERE for Details
Overnight
Low: 19 °F
Chance
Freezing Rain
and Patchy
Dense Fog
Christmas Day
High: 35 °F
Chance
Freezing Rain
and Patchy
Dense Fog
then Mostly
Sunny
Thursday Night
Low: 26 °F
Mostly Cloudy
Friday
High: 44 °F
Slight Chance
Rain/Snow
Friday Night
Low: 5 °F
Slight Chance
Snow
Saturday
High: 21 °F
Chance Snow
Saturday Night
Low: -6 °F
Partly Cloudy
Sunday
High: 18 °F
Sunny

Detailed Forecast

Overnight

A chance of freezing rain. Patchy dense fog. Otherwise, mostly cloudy, with a low around 19. Calm wind. Chance of precipitation is 50%.

Christmas Day

A chance of freezing rain, mainly before 9am. Patchy dense fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 35. Light south wind. Chance of precipitation is 40%.

Thursday Night

Mostly cloudy, with a low around 26. South southeast wind around 6 mph.

Friday

A slight chance of rain and snow between 11am and 2pm, then a slight chance of rain after 2pm. Partly sunny, with a high near 44. South wind around 7 mph. Chance of precipitation is 20%.

Friday Night

A 20 percent chance of snow after 11pm. Mostly cloudy, with a low around 5. Southwest wind around 11 mph, with gusts as high as 20 mph.

Saturday

A 40 percent chance of snow, mainly before 11am. Mostly cloudy, with a high near 21. Northwest wind around 15 mph, with gusts as high as 25 mph. New snow accumulation of less than a half inch possible.

Saturday Night

Partly cloudy, with a low around -6. West northwest wind 6 to 13 mph, with gusts as high as 21 mph.

Sunday

Sunny, with a high near 18. Calm wind.

Sunday Night

Partly cloudy, with a low around 9.

Monday

Mostly sunny, with a high near 37.

Monday Night

Mostly cloudy, with a low around 22.

Tuesday

Partly sunny, with a high near 40.