Severe Thunderstorm, Flooding, and Winter Weather Threats on Tuesday

Scattered severe thunderstorms are forecast Tuesday from the southern Plains into the southern Great Lakes vicinity. Thunderstorms may also produce heavy to excessive rain that could pose a flooding threat from central Texas into southern Oklahoma and northern Missouri into southern Michigan. A heavy wintry mix is forecast for the Great Lakes into northern Maine. Read More >

Hazardous Weather Conditions

High Wind Watch in effect from March 11, 06:00 PM MDT until March 12, 06:00 PM MDT
Winter Storm Watch in effect from March 11, 06:00 PM MDT until March 13, 06:00 PM MDT

Current conditions at

USCRN SITE NEAR ST. MARY 1SSW (MRYM8)

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

28°F

-2°C

Humidity	34%
Wind Speed	NA 6 MPH
Barometer	NA
Dewpoint	3°F (-16°C)
Visibility	NA
Wind Chill	21°F (-6°C)
Last update	09 Mar 06:10 PM MDT

More Information:

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

Extended Forecast for

5 Miles WSW St Mary MT

Winter Storm Watch March 11, 06:00pm until March 13, 06:00pm

High Wind Watch March 11, 06:00pm until March 12, 06:00pm

Click here for hazard details and duration

Winter Storm Watch

High Wind Watch

Tonight
Low: 9 °F
Chance Snow
and Patchy
Blowing Snow
Tuesday
High: 16 °F
Heavy Snow
and Breezy
Tuesday Night
Low: 11 °F
Breezy.
Slight Chance
Snow then
Chance Snow
Wednesday
High: 24 °F
Snow and
Windy
Wednesday Night
Low: 22 °F
Heavy Snow
and Windy
Thursday
High: 26 °F
Heavy Snow
and Very
Windy
Thursday Night
Low: 19 °F
Heavy Snow
and Windy
Friday
High: 24 °F
Heavy Snow
and Breezy
Friday Night
Low: 10 °F
Heavy Snow
and Breezy

Detailed Forecast

Tonight

A slight chance of snow before 8pm, then a chance of snow after 3am. Patchy blowing snow before 10pm, then patchy blowing snow after 4am. Partly cloudy, with a low around 9. Wind chill values as low as -10. Breezy, with a west southwest wind 15 to 24 mph, with gusts as high as 41 mph. Chance of precipitation is 40%. Total nighttime snow accumulation of 1 to 2 inches possible.

Tuesday

A 50 percent chance of snow, mainly after noon. The snow could be heavy at times. Partly sunny, with a high near 16. Wind chill values as low as -10. Breezy, with a west wind 15 to 23 mph, with gusts as high as 41 mph. New snow accumulation of 2 to 4 inches possible.

Tuesday Night

A 50 percent chance of snow, mainly after midnight. Mostly cloudy, with a low around 11. Wind chill values as low as -10. Breezy, with a southwest wind 21 to 24 mph, with gusts as high as 40 mph. New snow accumulation of 1 to 2 inches possible.

Wednesday

Snow. High near 24. Wind chill values as low as -5. Windy, with a west southwest wind 24 to 33 mph, with gusts as high as 60 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

Wednesday Night

Snow. The snow could be heavy at times. Low around 22. Windy, with a west southwest wind 32 to 41 mph, with gusts as high as 75 mph. Chance of precipitation is 100%. New snow accumulation of 7 to 11 inches possible.

Thursday

Snow. The snow could be heavy at times. High near 26. Very windy, with a west southwest wind 38 to 46 mph, with gusts as high as 80 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

Thursday Night

Snow. The snow could be heavy at times. Low around 19. Windy, with a west southwest wind 23 to 31 mph, with gusts as high as 50 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.

Friday

Snow. The snow could be heavy at times. Cloudy, with a high near 24. Breezy, with a west wind around 22 mph, with gusts as high as 34 mph.

Friday Night

Snow. The snow could be heavy at times. Cloudy, with a low around 10. Breezy.

Saturday

Snow. The snow could be heavy at times. Cloudy, with a high near 15.

Saturday Night

Snow likely. Mostly cloudy, with a low around 4.

Sunday

A chance of snow. Mostly cloudy, with a high near 23. Breezy.

Sunday Night

A chance of snow. Mostly cloudy, with a low around 18. Breezy.