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

72°F

22°C

Humidity 23%
Wind Speed NA NA MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Last update 03 Jul 11:10 AM MDT
Extended Forecast for

St Mary MT

  • This Afternoon

    This Afternoon: Sunny, with a high near 76. Southwest wind around 15 mph, with gusts as high as 33 mph.

    High: 76 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 45. West southwest wind 9 to 14 mph becoming light and variable after midnight. Winds could gust as high as 30 mph.

    Low: 45 °F

    Mostly Clear

  • Independence Day

    Independence Day: Partly sunny, with a high near 69. Calm wind becoming east 5 to 8 mph in the morning.

    High: 69 °F

    Partly Sunny

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Cloudy, with a low around 47. East wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 60%.

    Low: 47 °F

    Chance
    T-storms then
    Showers
    Likely

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 61. Calm wind becoming west 5 to 8 mph in the morning. Chance of precipitation is 60%.

    High: 61 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 44. Southwest wind 5 to 7 mph.

    Low: 44 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 70. Southwest wind 5 to 10 mph, with gusts as high as 21 mph.

    High: 70 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 47. West southwest wind 5 to 9 mph becoming light after midnight. Winds could gust as high as 21 mph.

    Low: 47 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 76. Southwest wind around 15 mph, with gusts as high as 33 mph.
Tonight
Mostly clear, with a low around 45. West southwest wind 9 to 14 mph becoming light and variable after midnight. Winds could gust as high as 30 mph.
Independence Day
Partly sunny, with a high near 69. Calm wind becoming east 5 to 8 mph in the morning.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Cloudy, with a low around 47. East wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 60%.
Saturday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 61. Calm wind becoming west 5 to 8 mph in the morning. Chance of precipitation is 60%.
Saturday Night
Partly cloudy, with a low around 44. Southwest wind 5 to 7 mph.
Sunday
Mostly sunny, with a high near 70. Southwest wind 5 to 10 mph, with gusts as high as 21 mph.
Sunday Night
Partly cloudy, with a low around 47. West southwest wind 5 to 9 mph becoming light after midnight. Winds could gust as high as 21 mph.
Monday
Mostly sunny, with a high near 74.
Monday Night
Mostly clear, with a low around 50.
Tuesday
Sunny, with a high near 81.
Tuesday Night
Mostly clear, with a low around 55.
Wednesday
Sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
St Mary MT
 48.76°N 113.44°W (Elev. 4741 ft)
Last Update:
11:27 am MDT Jul 3, 2025
Forecast Valid:
12pm MDT Jul 3, 2025-6pm MDT Jul 9, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation