Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

Current conditions at

ST. MARY (SRYM8)

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

NA

82°F

28°C

Humidity 34%
Wind Speed ESE 6 MPH
Barometer NA
Dewpoint 51°F (11°C)
Visibility NA
Heat Index81°F (27°C)
Last update 21 Aug 04:11 PM MDT
Extended Forecast for

12 Miles E St Mary MT

  • Tonight

    Tonight: Mostly cloudy, with a low around 55. East southeast wind 7 to 9 mph becoming south southwest after midnight.

    Low: 55 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of showers before 1pm, then a slight chance of showers and thunderstorms between 1pm and 2pm.  Cloudy, then gradual clearing during the afternoon, with a high near 82. South wind 3 to 8 mph.  Chance of precipitation is 20%.

    High: 82 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly before 3am.  Mostly cloudy, with a low around 56. West southwest wind 7 to 9 mph.

    Low: 56 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 74. Breezy, with a west southwest wind 9 to 14 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 37 mph.

    High: 74 °F

    Partly Sunny
    then Sunny
    and Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 48. Breezy, with a west southwest wind 18 to 23 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 39 mph.

    Low: 48 °F

    Mostly Clear
    and Breezy
    then Clear

  • Monday

    Monday: Sunny, with a high near 72. West northwest wind 6 to 9 mph.

    High: 72 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 48. West northwest wind 5 to 10 mph becoming light west southwest  after midnight.

    Low: 48 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 78. Light and variable wind becoming south southeast 6 to 11 mph in the morning.

    High: 78 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 55. East southeast wind 7 to 9 mph becoming south southwest after midnight.
Saturday
A slight chance of showers before 1pm, then a slight chance of showers and thunderstorms between 1pm and 2pm. Cloudy, then gradual clearing during the afternoon, with a high near 82. South wind 3 to 8 mph. Chance of precipitation is 20%.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly before 3am. Mostly cloudy, with a low around 56. West southwest wind 7 to 9 mph.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 74. Breezy, with a west southwest wind 9 to 14 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 37 mph.
Sunday Night
Mostly clear, with a low around 48. Breezy, with a west southwest wind 18 to 23 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 39 mph.
Monday
Sunny, with a high near 72. West northwest wind 6 to 9 mph.
Monday Night
Mostly clear, with a low around 48. West northwest wind 5 to 10 mph becoming light west southwest after midnight.
Tuesday
Sunny, with a high near 78. Light and variable wind becoming south southeast 6 to 11 mph in the morning.
Tuesday Night
Mostly clear, with a low around 51.
Wednesday
Mostly sunny, with a high near 79.
Wednesday Night
Partly cloudy, with a low around 50.
Thursday
Mostly sunny, with a high near 71.
Thursday Night
A slight chance of showers. Partly cloudy, with a low around 47.
Friday
Sunny, with a high near 71.
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles E St Mary MT
 48.74°N 113.15°W (Elev. 4810 ft)
12:31 pm MDT Aug 21, 2026
4pm MDT Aug 21, 2026-6pm MDT Aug 28, 2026
 
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Additional Resources

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Hourly Weather Forecast

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