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

Logan Pass Visitors Center (LGPVC)

Lat: 48.6949°NLon: 113.7169°WElev: 6775.0ft.

NA

69°F

21°C

Humidity 23%
Wind Speed SW 5 MPH
Barometer 30.21 in (1023.03 mb)
Dewpoint 30°F (-1°C)
Visibility NA
Last update 20 Aug 04:00 PM MDT
Extended Forecast for

11 Miles WSW St Mary MT

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before midnight, then a chance of showers after 2am.  Mostly cloudy, with a low around 57. South southwest wind 5 to 7 mph becoming west after midnight.  Chance of precipitation is 40%.

    Low: 57 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers before 1pm, then a slight chance of showers and thunderstorms between 1pm and 3pm.  Patchy smoke between 2pm and 3pm. Mostly cloudy through mid morning, then becoming sunny, with a high near 69. West southwest wind 7 to 12 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 36 mph.  Chance of precipitation is 20%.

    High: 69 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Patchy smoke before 10pm, then patchy smoke after 1am. Mostly clear, with a low around 50. West southwest wind 15 to 20 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 38 mph.

    Low: 50 °F

    Patchy Smoke

  • Monday

    Monday: Patchy smoke before 7am. Sunny, with a high near 71. West southwest wind around 7 mph.

    High: 71 °F

    Patchy Smoke
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 50. West southwest wind around 6 mph becoming calm  in the evening.

    Low: 50 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 78. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 78 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 55. Southwest wind around 5 mph becoming light and variable  in the evening.

    Low: 55 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 81. Light and variable wind becoming southwest 5 to 8 mph in the afternoon.

    High: 81 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms before midnight, then a chance of showers after 2am. Mostly cloudy, with a low around 57. South southwest wind 5 to 7 mph becoming west after midnight. Chance of precipitation is 40%.
Sunday
A slight chance of showers before 1pm, then a slight chance of showers and thunderstorms between 1pm and 3pm. Patchy smoke between 2pm and 3pm. Mostly cloudy through mid morning, then becoming sunny, with a high near 69. West southwest wind 7 to 12 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 20%.
Sunday Night
Patchy smoke before 10pm, then patchy smoke after 1am. Mostly clear, with a low around 50. West southwest wind 15 to 20 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 38 mph.
Monday
Patchy smoke before 7am. Sunny, with a high near 71. West southwest wind around 7 mph.
Monday Night
Mostly clear, with a low around 50. West southwest wind around 6 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 78. Calm wind becoming southwest around 6 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 55. Southwest wind around 5 mph becoming light and variable in the evening.
Wednesday
Mostly sunny, with a high near 81. Light and variable wind becoming southwest 5 to 8 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 56.
Thursday
Mostly sunny, with a high near 72.
Thursday Night
Mostly clear, with a low around 50.
Friday
Sunny, with a high near 67.
Friday Night
Mostly clear, with a low around 48.
Saturday
Sunny, with a high near 66.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles WSW St Mary MT
 48.68°N 113.65°W (Elev. 5748 ft)
12:31 pm MDT Aug 22, 2026
3pm MDT Aug 22, 2026-6pm MDT Aug 29, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database