Critical Fire Weather in the High Plains and Midwest; Heavy Snow in the Western Mountains and Northern Plains

Gusty winds and low relative humidity will bring critical fire weather to the central/southern High Plains and portions of the Midwest. Two Pacific storms will continue to bring heavy mountain snow and gusty winds to the western U.S. through Thursday. A swath of wintry weather, including heavy snow and a wintry mix, is expected from the Northern Plains to New England. Read More >

Hazardous Weather Conditions

Cold Weather Advisory in effect from February 18, 12:00 PM MST until February 19, 12:00 PM MST

Current conditions at

USCRN SITE NEAR ST. MARY 1SSW (MRYM8)

Lat: 48.74111°NLon: 113.43306°WElev: 4550.0ft.

-11°F

-24°C

Humidity	61%
Wind Speed	NA 7 MPH
Barometer	NA
Dewpoint	-21°F (-29°C)
Visibility	NA
Wind Chill	-26°F (-32°C)
Last update	18 Feb 11:10 AM MST

More Information:

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

Extended Forecast for

6 Miles W St Mary MT

Cold Weather Advisory February 18, 12:00pm until February 19, 12:00pm

Click here for hazard details and duration

Cold Weather Advisory

Today
High: -11 °F
Chance Snow
Tonight
Low: -13 °F
Slight Chance
Snow then
Mostly Cloudy
Thursday
High: 13 °F
Sunny
Thursday Night
Low: 4 °F
Partly Cloudy
Friday
High: 17 °F
Chance Snow
Friday Night
Low: 8 °F
Slight Chance
Snow then
Mostly Cloudy
Saturday
High: 20 °F
Slight Chance
Snow
Saturday Night
Low: 3 °F
Slight Chance
Snow
Sunday
High: 22 °F
Slight Chance
Snow

Detailed Forecast

Today

A 40 percent chance of snow, mainly before 3pm. Mostly cloudy and cold, with a high near -11. Wind chill values as low as -35. East northeast wind 14 to 16 mph, with gusts as high as 28 mph. Total daytime snow accumulation of less than a half inch possible.

Tonight

A 10 percent chance of snow before 7pm. Mostly cloudy, with a low around -13. Wind chill values as low as -35. North northeast wind 8 to 14 mph becoming west southwest after midnight. Winds could gust as high as 23 mph.

Thursday

Sunny, with a high near 13. Wind chill values as low as -20. West wind 7 to 9 mph, with gusts as high as 18 mph.

Thursday Night

Partly cloudy, with a low around 4. Wind chill values as low as -10. West southwest wind around 9 mph.

Friday

A 30 percent chance of snow, mainly after 11am. Partly sunny, with a high near 17. West southwest wind 10 to 15 mph, with gusts as high as 28 mph. New snow accumulation of less than a half inch possible.

Friday Night

A 20 percent chance of snow before 11pm. Mostly cloudy, with a low around 8. West southwest wind 11 to 15 mph, with gusts as high as 26 mph.

Saturday

A 20 percent chance of snow after 11am. Mostly sunny, with a high near 20. West wind around 10 mph, with gusts as high as 18 mph.

Saturday Night

A slight chance of snow after 11pm. Mostly cloudy, with a low around 3. East southeast wind around 11 mph, with gusts as high as 20 mph.

Sunday

A slight chance of snow. Partly sunny, with a high near 22.

Sunday Night

A slight chance of snow. Mostly cloudy, with a low around 11.

Monday

A chance of snow. Partly sunny, with a high near 30.