Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Bearmouth I-90 MP 145.8 (MTBRM)

Lat: 46.71854°NLon: 113.29534°WElev: 3901.0ft.

NA

90°F

32°C

Humidity 20%
Wind Speed W 8 MPH
Barometer NA
Dewpoint 44°F (7°C)
Visibility NA
Heat Index86°F (30°C)
Last update 19 Aug 04:45 PM MDT
Extended Forecast for

11 Miles SE Greenough MT

  • Tonight

    Tonight: Patchy smoke after 1am. Partly cloudy, with a low around 50. West northwest wind around 5 mph becoming calm  in the evening.

    Low: 50 °F

    Partly Cloudy
    then Patchy
    Smoke

  • Thursday

    Thursday: Sunny, with a high near 80. Calm wind becoming west northwest around 5 mph in the afternoon.

    High: 80 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 55. Light north northwest wind.

    Low: 55 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 83. Light and variable wind.

    High: 83 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms after midnight.  Mostly cloudy, with a low around 56. Light and variable wind becoming east around 5 mph in the evening.

    Low: 56 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Saturday

    Saturday: A chance of rain before noon, then a chance of showers and thunderstorms after noon.  Partly sunny, with a high near 77. Chance of precipitation is 50%.

    High: 77 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 52.

    Low: 52 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy smoke after 1am. Partly cloudy, with a low around 50. West northwest wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 80. Calm wind becoming west northwest around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 55. Light north northwest wind.
Friday
Mostly sunny, with a high near 83. Light and variable wind.
Friday Night
A 20 percent chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 56. Light and variable wind becoming east around 5 mph in the evening.
Saturday
A chance of rain before noon, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 77. Chance of precipitation is 50%.
Saturday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 52.
Sunday
Sunny, with a high near 70.
Sunday Night
Mostly clear, with a low around 47.
Monday
Sunny, with a high near 73.
Monday Night
Partly cloudy, with a low around 50.
Tuesday
Mostly sunny, with a high near 75.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 51.
Wednesday
A slight chance of rain. Mostly sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles SE Greenough MT
 46.79°N 113.26°W (Elev. 5600 ft)
2:01 pm MDT Aug 19, 2026
5pm MDT Aug 19, 2026-6pm MDT Aug 26, 2026
 
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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