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

Sioux Pass MT-16 MP 21 (MTSOO)

Lat: 47.91973°NLon: 104.32619°WElev: 2480.0ft.

NA

58°F

14°C

Humidity 82%
Wind Speed S 1 MPH
Barometer NA
Dewpoint 52°F (11°C)
Visibility NA
Last update 19 Aug 07:30 AM MDT
Extended Forecast for

7 Miles W Lambert MT

  • Today

    Today: Mostly sunny, with a high near 87. South southwest wind 7 to 14 mph becoming west northwest in the afternoon. Winds could gust as high as 22 mph.

    High: 87 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 57. Northwest wind 8 to 13 mph becoming light west  after midnight. Winds could gust as high as 20 mph.

    Low: 57 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 86. Calm wind becoming north northwest around 6 mph in the afternoon.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 58. North northeast wind 5 to 7 mph becoming east after midnight.

    Low: 58 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 83. Northeast wind 6 to 10 mph.

    High: 83 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 56. North northeast wind 7 to 11 mph becoming east southeast after midnight.

    Low: 56 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 85. East southeast wind 8 to 16 mph, with gusts as high as 25 mph.

    High: 85 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers after midnight.  Mostly cloudy, with a low around 61. East southeast wind 16 to 18 mph, with gusts as high as 28 mph.

    Low: 61 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 89. South southeast wind around 15 mph becoming west in the afternoon. Winds could gust as high as 25 mph.

    High: 89 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 87. South southwest wind 7 to 14 mph becoming west northwest in the afternoon. Winds could gust as high as 22 mph.
Tonight
Partly cloudy, with a low around 57. Northwest wind 8 to 13 mph becoming light west after midnight. Winds could gust as high as 20 mph.
Thursday
Sunny, with a high near 86. Calm wind becoming north northwest around 6 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 58. North northeast wind 5 to 7 mph becoming east after midnight.
Friday
Sunny, with a high near 83. Northeast wind 6 to 10 mph.
Friday Night
Partly cloudy, with a low around 56. North northeast wind 7 to 11 mph becoming east southeast after midnight.
Saturday
Mostly sunny, with a high near 85. East southeast wind 8 to 16 mph, with gusts as high as 25 mph.
Saturday Night
A 30 percent chance of showers after midnight. Mostly cloudy, with a low around 61. East southeast wind 16 to 18 mph, with gusts as high as 28 mph.
Sunday
Mostly sunny, with a high near 89. South southeast wind around 15 mph becoming west in the afternoon. Winds could gust as high as 25 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 60. West southwest wind 8 to 15 mph, with gusts as high as 23 mph.
Monday
Sunny, with a high near 85. West northwest wind 9 to 13 mph, with gusts as high as 21 mph.
Monday Night
Mostly clear, with a low around 57.
Tuesday
Mostly sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles W Lambert MT
 47.69°N 104.78°W (Elev. 2497 ft)
5:11 am MDT Aug 19, 2026
7am MDT Aug 19, 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