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

Great Falls, Great Falls International Airport (KGTF)

Lat: 47.47333°NLon: 111.38222°WElev: 3675.0ft.

freezing fog

23°F

-5°C

Humidity	95%
Wind Speed	E 6 MPH
Barometer	29.76 in (1007.79 mb)
Dewpoint	22°F (-6°C)
Visibility	-0.25 mi
Wind Chill	16°F (-9°C)
Last update	24 Dec 04:53 PM MST

More Information:

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

Extended Forecast for

Great Falls MT

Winter Weather Advisory December 24, 07:00pm until December 25, 05:00am

Dense Fog Advisory until December 24, 11:00pm

Click here for hazard details and duration

Winter Weather Advisory

Dense Fog Advisory

Dense Fog Advisory until December 24, 11:00pm
NOW until 11:00pm Wed
Dense Fog Advisory
This Afternoon
High: 23 °F
Partly Sunny
Tonight
Low: 22 °F⇑
Mostly Cloudy
Christmas Day
High: 51 °F
Mostly Sunny
Thursday Night
Low: 34 °F
Mostly Cloudy
Friday
High: 49 °F
Partly Sunny
Friday Night
Low: 9 °F
Slight Chance
Snow
Saturday
High: 15 °F
Chance Snow
then Mostly
Cloudy
Saturday Night
Low: -1 °F
Partly Cloudy

Detailed Forecast

This Afternoon

Partly sunny, with a steady temperature around 23. East northeast wind around 6 mph.

Tonight

Mostly cloudy, with a temperature rising to around 27 by 5am. Northeast wind around 6 mph becoming calm in the evening.

Christmas Day

Mostly sunny, with a high near 51. Southwest wind 5 to 9 mph.

Thursday Night

Mostly cloudy, with a low around 34. South southwest wind 7 to 9 mph.

Friday

Partly sunny, with a high near 49. South southwest wind 10 to 17 mph, with gusts as high as 29 mph.

Friday Night

A 20 percent chance of snow after 11pm. Mostly cloudy, with a low around 9. Southwest wind around 15 mph, with gusts as high as 25 mph.

Saturday

A 30 percent chance of snow before 11am. Mostly cloudy, with a high near 15. West wind 10 to 17 mph becoming north northwest in the morning. Winds could gust as high as 26 mph. Little or no snow accumulation expected.

Saturday Night

Partly cloudy, with a low around -1. Northwest wind 5 to 7 mph becoming calm in the evening.

Sunday

Sunny, with a high near 35.

Sunday Night

Partly cloudy, with a low around 21.

Monday

Mostly sunny, with a high near 45.

Monday Night

Partly cloudy, with a low around 30.

Tuesday

Partly sunny, with a high near 48.