National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

USCRN SITE NEAR ST. MARY 1SSW (MRYM8)

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

NA

N/A

Humidity 85%
Wind Speed NA 0 MPH
Barometer NA
Dewpoint N/A
Visibility NA
Last update 12 Oct 08:10 AM MDT
Extended Forecast for

5 Miles SW St Mary MT

  • Tonight

    Tonight: Mostly cloudy, with a low around 37. Southwest wind around 5 mph becoming calm in the evening.

    Low: 37 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 58. Calm wind becoming east northeast around 5 mph in the afternoon.

    High: 58 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 37. Calm wind becoming southwest around 6 mph in the evening.

    Low: 37 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 66. Southwest wind 6 to 10 mph, with gusts as high as 21 mph.

    High: 66 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 42. Southwest wind around 7 mph.

    Low: 42 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 66. Southwest wind 3 to 6 mph.

    High: 66 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Rain likely, mainly after midnight. Mostly cloudy, with a low around 40. Southwest wind 3 to 6 mph. Chance of precipitation is 70%.

    Low: 40 °F

    Chance Rain
    then Rain
    Likely

  • Friday

    Friday: Rain before noon, then rain and snow. Cloudy, with a high near 47. West southwest wind 6 to 9 mph becoming northwest in the afternoon.

    High: 47 °F

    Rain then
    Rain/Snow

  • Friday Night

    Friday Night: Rain and snow before midnight, then a chance of snow. Cloudy, with a low around 28.

    Low: 28 °F

    Rain/Snow
    then Chance
    Snow

Detailed Forecast

Tonight
Mostly cloudy, with a low around 37. Southwest wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 58. Calm wind becoming east northeast around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 37. Calm wind becoming southwest around 6 mph in the evening.
Wednesday
Sunny, with a high near 66. Southwest wind 6 to 10 mph, with gusts as high as 21 mph.
Wednesday Night
Partly cloudy, with a low around 42. Southwest wind around 7 mph.
Thursday
Mostly sunny, with a high near 66. Southwest wind 3 to 6 mph.
Thursday Night
Rain likely, mainly after midnight. Mostly cloudy, with a low around 40. Southwest wind 3 to 6 mph. Chance of precipitation is 70%.
Friday
Rain before noon, then rain and snow. Cloudy, with a high near 47. West southwest wind 6 to 9 mph becoming northwest in the afternoon.
Friday Night
Rain and snow before midnight, then a chance of snow. Cloudy, with a low around 28.
Saturday
A slight chance of snow before noon. Mostly cloudy, with a high near 40.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 24.
Sunday
A chance of snow. Mostly cloudy, with a high near 41.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 24.
Monday
A slight chance of snow. Partly sunny, with a high near 45.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW St Mary MT
 48.69°N 113.52°W (Elev. 4491 ft)
Last Update:
4:41 pm MDT Oct 19, 2026
Forecast Valid:
5pm MDT Oct 19, 2026-6pm MDT Oct 26, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation