Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

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 49%
Wind Speed NW 0 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Last update 18 Aug 11:15 PM MDT
Extended Forecast for

2 Miles NW Elliston MT

  • Tonight

    Tonight: Mostly clear, with a low around 48. Southeast wind around 6 mph becoming light and variable  after midnight.

    Low: 48 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 78. Light west southwest wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 18 mph.

    High: 78 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 49. West northwest wind around 6 mph becoming calm  in the evening.

    Low: 49 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 85. Calm wind becoming west northwest 5 to 8 mph in the afternoon.

    High: 85 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 51. Northwest wind around 6 mph becoming calm  in the evening.

    Low: 51 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of rain, mainly before midnight.  Mostly cloudy, with a low around 53.

    Low: 53 °F

    Chance Rain

  • Saturday

    Saturday: A chance of showers and thunderstorms after noon.  Partly sunny, with a high near 80.

    High: 80 °F

    Partly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 49.

    Low: 49 °F

    Chance
    Showers then
    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 48. Southeast wind around 6 mph becoming light and variable after midnight.
Wednesday
Sunny, with a high near 78. Light west southwest wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 18 mph.
Wednesday Night
Partly cloudy, with a low around 49. West northwest wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 85. Calm wind becoming west northwest 5 to 8 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 51. Northwest wind around 6 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 83.
Friday Night
A 30 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 53.
Saturday
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 80.
Saturday Night
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 49.
Sunday
Sunny, with a high near 75.
Sunday Night
Mostly clear, with a low around 48.
Monday
Sunny, with a high near 78.
Monday Night
Partly cloudy, with a low around 49.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Elliston MT
 46.59°N 112.48°W (Elev. 5174 ft)
2:00 pm MDT Aug 18, 2026
11pm MDT Aug 18, 2026-6pm MDT Aug 25, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database