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

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 >

Hazardous Weather Conditions

Current conditions at

Garrison I-90 MP 174.4 (MTGAR)

Lat: 46.52361°NLon: 112.80843°WElev: 4327.0ft.

NA

57°F

14°C

Humidity 81%
Wind Speed NNW 4 MPH
Barometer NA
Dewpoint 51°F (11°C)
Visibility NA
Last update 23 Aug 02:15 AM MDT
Extended Forecast for

11 Miles SW Garrison MT

Red Flag Warning August 23, 01:00pm until August 23, 08:00pm
Click here for hazard details and duration
Red Flag Warning

  • Overnight

    Overnight: Mostly cloudy, with a low around 56. Southwest wind around 8 mph.

    Low: 56 °F

    Mostly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 69. Southwest wind 6 to 16 mph, with gusts as high as 30 mph.

    High: 69 °F

    Sunny

  • Sunday Night

    Sunday Night: Patchy smoke between 10pm and 2am. Mostly clear, with a low around 48. West southwest wind 6 to 14 mph, with gusts as high as 26 mph.

    Low: 48 °F

    Patchy Smoke

  • Monday

    Monday: Sunny, with a high near 69. Light and variable wind becoming north northwest 5 to 7 mph in the afternoon.

    High: 69 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 52. North northwest wind around 6 mph becoming calm in the evening.

    Low: 52 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of rain before midnight. Mostly cloudy, with a low around 54.

    Low: 54 °F

    Chance Rain
    then Mostly
    Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 56. Southwest wind around 8 mph.
Sunday
Sunny, with a high near 69. Southwest wind 6 to 16 mph, with gusts as high as 30 mph.
Sunday Night
Patchy smoke between 10pm and 2am. Mostly clear, with a low around 48. West southwest wind 6 to 14 mph, with gusts as high as 26 mph.
Monday
Sunny, with a high near 69. Light and variable wind becoming north northwest 5 to 7 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 52. North northwest wind around 6 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 70.
Tuesday Night
Partly cloudy, with a low around 54.
Wednesday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 72.
Wednesday Night
A chance of rain before midnight. Mostly cloudy, with a low around 54.
Thursday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 72.
Thursday Night
A slight chance of rain. Partly cloudy, with a low around 52.
Friday
Sunny, with a high near 69.
Friday Night
Partly cloudy, with a low around 51.
Saturday
A slight chance of rain. Sunny, with a high near 67.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles SW Garrison MT
 46.41°N 112.97°W (Elev. 6847 ft)
Last Update:
2:01 am MDT Aug 23, 2026
Forecast Valid:
2am MDT Aug 23, 2026-6pm MDT Aug 29, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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