National Weather Service United States Department of Commerce

NWS launches Spring Safety Campaign

Though much of the nation is still under a deep freeze, more typical spring weather is on the horizon, and with it the threat of severe weather, flooding and other hazards. As part of our effort to build a Weather-Ready Nation, NWS is launching its Spring Seasonal Safety Campaign, with information to help you know your risk, take action and be a Force of Nature this spring.
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Current Conditions

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St Mary MT

7 Day Forecast

For More Weather Information:

Great Falls, MT Local Forecast Office

This
Afternoon

Snow Chance for Measurable Precipitation 100%

Snow

High: 28 °F

Tonight

Snow Chance for Measurable Precipitation 90%

Snow

Low: -8 °F

Tuesday

Cold

Cold

High: 10 °F

Tuesday
Night

Partly Cloudy

Partly
Cloudy

Low: -8 °F

Wednesday

Mostly Sunny

Mostly
Sunny

High: 25 °F

Wednesday
Night

Partly Cloudy

Partly
Cloudy

Low: 12 °F

Thursday

Partly Sunny

Partly
Sunny

High: 35 °F

Thursday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 23 °F

Friday

Slight Chance Snow

Slight Chc
Snow

High: 40 °F

Detailed Forecast

  • This Afternoon Snow with areas of blowing snow. High near 28. Blustery, with a north northeast wind around 24 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 2 to 4 inches possible.
  • Tonight Snow. Low around -8. Wind chill values as low as -28. Blustery, with a north northeast wind 15 to 22 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
  • Tuesday Mostly sunny and cold, with a high near 10. Wind chill values as low as -28. West northwest wind 11 to 16 mph, with gusts as high as 23 mph.
  • Tuesday Night Partly cloudy, with a low around -8. Wind chill values as low as -20. West wind 3 to 6 mph.
  • Wednesday Mostly sunny, with a high near 25. West southwest wind 9 to 11 mph.
  • Wednesday Night Partly cloudy, with a low around 12.
  • Thursday Partly sunny, with a high near 35.
  • Thursday Night Mostly cloudy, with a low around 23.
  • Friday A slight chance of snow showers. Partly sunny, with a high near 40.
  • Friday Night A slight chance of snow showers. Partly cloudy, with a low around 23.
  • Saturday Partly sunny, with a high near 40.
  • Saturday Night Mostly cloudy, with a low around 23.
  • Sunday Mostly sunny, with a high near 41.