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

Lewistown Divide MT-200 MP 90.3 (MTLEW)

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

NA

65°F

18°C

Humidity 33%
Wind Speed E 7 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Last update 19 Jun 03:30 PM MDT
Extended Forecast for

8 Miles NW Grass Range MT

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 46. East southeast wind 6 to 11 mph, with gusts as high as 18 mph.

    Low: 46 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 77. South wind 6 to 10 mph becoming east southeast in the morning.

    High: 77 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, with a low around 52. South southeast wind 6 to 16 mph becoming west after midnight. Winds could gust as high as 25 mph.

    Low: 52 °F

    Chance
    Showers then
    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 73. West wind 14 to 21 mph, with gusts as high as 29 mph.

    High: 73 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms, then a chance of showers after 9pm. Partly cloudy, with a low around 46. North northwest wind 9 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    Low: 46 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Monday

    Monday: A 30 percent chance of showers. Partly sunny, with a high near 65. West northwest wind 16 to 21 mph, with gusts as high as 30 mph.

    High: 65 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 43. Northwest wind 16 to 21 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 30 mph.

    Low: 43 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 72. West wind 5 to 7 mph becoming northeast in the afternoon.

    High: 72 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 46. East southeast wind 6 to 11 mph, with gusts as high as 18 mph.
Saturday
A 20 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 77. South wind 6 to 10 mph becoming east southeast in the morning.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, with a low around 52. South southeast wind 6 to 16 mph becoming west after midnight. Winds could gust as high as 25 mph.
Sunday
Mostly sunny, with a high near 73. West wind 14 to 21 mph, with gusts as high as 29 mph.
Sunday Night
A slight chance of showers and thunderstorms, then a chance of showers after 9pm. Partly cloudy, with a low around 46. North northwest wind 9 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Monday
A 30 percent chance of showers. Partly sunny, with a high near 65. West northwest wind 16 to 21 mph, with gusts as high as 30 mph.
Monday Night
Mostly clear, with a low around 43. Northwest wind 16 to 21 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 30 mph.
Tuesday
Sunny, with a high near 72. West wind 5 to 7 mph becoming northeast in the afternoon.
Tuesday Night
Partly cloudy, with a low around 46.
Wednesday
Mostly sunny, with a high near 77.
Wednesday Night
Partly cloudy, with a low around 49.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 82.
Thursday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 53.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 84.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles NW Grass Range MT
 47.1°N 108.94°W (Elev. 3698 ft)
Last Update:
12:32 pm MDT Jun 19, 2026
Forecast Valid:
3pm MDT Jun 19, 2026-6pm MDT Jun 26, 2026
 
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