Hazardous Spring Weather Shifts to the Eastern and Northwest U.S. Wednesday

Isolated to scattered severe thunderstorms are expected Wednesday from the ArkLaTex and Lower Mississippi Valley northeastward through the Ohio Valley and Mid-Atlantic. Thunderstorms may produce heavy to excessive rain that could pose a flooding threat from east Texas into Upstate New York. A moderate atmospheric river will bring heavy snow and high winds to the Northwest U.S. Read More >

Hazardous Weather Conditions

High Wind Warning in effect from March 11, 06:00 PM MDT until March 12, 03:00 PM MDT
Winter Storm Watch in effect from March 12, 06:00 PM MDT until March 14, 06:00 PM MDT

Current conditions at

ST. MARY (SRYM8)

Lat: 48.74108°NLon: 113.43289°WElev: 4557.0ft.

25°F

-4°C

Humidity	60%
Wind Speed	SSW 12 MPH
Barometer	NA
Dewpoint	13°F (-11°C)
Visibility	NA
Wind Chill	14°F (-10°C)
Last update	10 Mar 11:11 PM MDT

More Information:

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

Extended Forecast for

12 Miles E St Mary MT

Winter Storm Watch March 12, 06:00pm until March 14, 06:00pm

High Wind Warning March 11, 06:00pm until March 12, 03:00pm

Click here for hazard details and duration

Winter Storm Watch

High Wind Warning

Overnight
Low: 16 °F
Slight Chance
Snow
Wednesday
High: 35 °F
Chance Snow
and Breezy
Wednesday Night
Low: 31 °F
Snow and
Blowing Snow
Thursday
High: 36 °F
Snow and
Blowing Snow
Thursday Night
Low: 20 °F
Snow and
Areas Blowing
Snow
Friday
High: 28 °F
Heavy Snow
Friday Night
Low: 15 °F
Snow
Saturday
High: 22 °F
Snow
Saturday Night
Low: 6 °F
Chance Snow

Detailed Forecast

Overnight

A 20 percent chance of snow after 5am. Mostly clear, with a low around 16. Wind chill values as low as zero. West southwest wind 16 to 20 mph, with gusts as high as 36 mph.

Wednesday

A slight chance of snow before 10am, then a chance of snow after noon. Mostly sunny, with a high near 35. Breezy, with a west southwest wind 16 to 21 mph increasing to 23 to 28 mph in the afternoon. Winds could gust as high as 47 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

Wednesday Night

Snow, mainly before 5am. Widespread blowing snow, mainly after 3am. Steady temperature around 31. Windy, with a west southwest wind 20 to 30 mph increasing to 30 to 40 mph after midnight. Winds could gust as high as 70 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

Thursday

Snow. Widespread blowing snow. High near 36. Windy, with a west wind 34 to 41 mph, with gusts as high as 75 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

Thursday Night

Snow. Areas of blowing snow before midnight. Low around 20. Breezy, with a west wind 23 to 28 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 50 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

Friday

Snow. The snow could be heavy at times. High near 28. West northwest wind 9 to 14 mph becoming east in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.

Friday Night

Snow. Low around 15. East northeast wind 6 to 13 mph becoming south after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.

Saturday

Snow. Cloudy, with a high near 22. North northwest wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 30 mph.

Saturday Night

A chance of snow, mainly before midnight. Mostly cloudy, with a low around 6.

Sunday

Partly sunny, with a high near 29.

Sunday Night

A chance of snow. Mostly cloudy, with a low around 20.

Monday

A chance of rain and snow. Mostly cloudy, with a high near 44. Breezy.

Monday Night

A chance of rain and snow. Mostly cloudy, with a low around 39. Windy.