Areas of Severe Thunderstorms and Excessive Rainfall; Heat Wave Builds in the Intermountain West and Plains

A slow moving front will bring rounds of strong to severe thunderstorms and heavy rainfall to the central Plains eastward to the east-central U.S.. The first widespread significant heat wave of summer for the Intermountain West and Plains is expected to develop today and expand through next week. Dangerous heat will continue to impact portions of the Southwest and Southeast. Read More >

Current conditions at

Lewistown Divide MT-200 MP 90.3 (MTLEW)

Lat: 47.07579°NLon: 109.26247°WElev: 4723.0ft.

NA

78°F

26°C

Humidity 24%
Wind Speed NW 5 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Heat Index78°F (26°C)
Last update 10 Jul 11:30 AM MDT
Extended Forecast for

9 Miles ENE Lewistown MT

  • Today

    Today: Sunny, with a high near 82. West wind 3 to 5 mph.

    High: 82 °F

    Sunny

  • Tonight

    Tonight: A 20 percent chance of showers between midnight and 3am.  Mostly clear, with a low around 62. Northeast wind around 7 mph becoming east southeast after midnight.

    Low: 62 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 90. South southeast wind 5 to 13 mph becoming west in the afternoon. Winds could gust as high as 25 mph.

    High: 90 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 66. West wind 7 to 10 mph becoming south after midnight. Winds could gust as high as 22 mph.

    Low: 66 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny and hot, with a high near 96. Southeast wind 9 to 15 mph becoming south southwest in the afternoon. Winds could gust as high as 30 mph.

    High: 96 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 65. West northwest wind 7 to 13 mph, with gusts as high as 25 mph.

    Low: 65 °F

    Mostly Cloudy

  • Monday

    Monday: Sunny, with a high near 86. South southwest wind 5 to 11 mph becoming east southeast in the morning. Winds could gust as high as 22 mph.

    High: 86 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 66. East wind 8 to 11 mph, with gusts as high as 23 mph.

    Low: 66 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 82. West wind 3 to 5 mph.
Tonight
A 20 percent chance of showers between midnight and 3am. Mostly clear, with a low around 62. Northeast wind around 7 mph becoming east southeast after midnight.
Saturday
Sunny, with a high near 90. South southeast wind 5 to 13 mph becoming west in the afternoon. Winds could gust as high as 25 mph.
Saturday Night
Mostly clear, with a low around 66. West wind 7 to 10 mph becoming south after midnight. Winds could gust as high as 22 mph.
Sunday
Mostly sunny and hot, with a high near 96. Southeast wind 9 to 15 mph becoming south southwest in the afternoon. Winds could gust as high as 30 mph.
Sunday Night
Mostly cloudy, with a low around 65. West northwest wind 7 to 13 mph, with gusts as high as 25 mph.
Monday
Sunny, with a high near 86. South southwest wind 5 to 11 mph becoming east southeast in the morning. Winds could gust as high as 22 mph.
Monday Night
Partly cloudy, with a low around 66. East wind 8 to 11 mph, with gusts as high as 23 mph.
Tuesday
Mostly sunny, with a high near 82.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 62.
Wednesday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 76.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 59.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 77.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles ENE Lewistown MT
 47.1°N 109.25°W (Elev. 5325 ft)
10:56 am MDT Jul 10, 2026
11am MDT Jul 10, 2026-6pm MDT Jul 16, 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