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

53°F

12°C

Humidity 35%
Wind Speed NW 1 MPH
Barometer NA
Dewpoint 26°F (-3°C)
Visibility NA
Last update 19 Oct 11:30 PM MDT
Extended Forecast for

8 Miles NW Grass Range MT

  • Tonight

    Tonight: Partly cloudy, with a low around 45. West southwest wind 5 to 8 mph.

    Low: 45 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 61. West wind 7 to 9 mph becoming north in the afternoon.

    High: 61 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 38. Light and variable wind.

    Low: 38 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 69. Light south wind increasing to 9 to 14 mph in the morning. Winds could gust as high as 22 mph.

    High: 69 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 47. South wind 6 to 11 mph.

    Low: 47 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 75. Calm wind becoming south southeast 5 to 8 mph in the afternoon.

    High: 75 °F

    Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 47. South wind 5 to 7 mph becoming light and variable after midnight.

    Low: 47 °F

    Partly Cloudy
    then Slight
    Chance Rain

  • Friday

    Friday: Rain. Mostly cloudy, with a high near 58. Windy, with a west wind 5 to 15 mph increasing to 22 to 32 mph in the afternoon. Winds could gust as high as 39 mph.

    High: 58 °F

    Rain and
    Windy

  • Friday Night

    Friday Night: Rain likely, mainly before midnight. Mostly cloudy, with a low around 34. Windy.

    Low: 34 °F

    Rain Likely
    and Windy

Detailed Forecast

Tonight
Partly cloudy, with a low around 45. West southwest wind 5 to 8 mph.
Tuesday
Mostly sunny, with a high near 61. West wind 7 to 9 mph becoming north in the afternoon.
Tuesday Night
Partly cloudy, with a low around 38. Light and variable wind.
Wednesday
Sunny, with a high near 69. Light south wind increasing to 9 to 14 mph in the morning. Winds could gust as high as 22 mph.
Wednesday Night
Mostly clear, with a low around 47. South wind 6 to 11 mph.
Thursday
Sunny, with a high near 75. Calm wind becoming south southeast 5 to 8 mph in the afternoon.
Thursday Night
A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 47. South wind 5 to 7 mph becoming light and variable after midnight.
Friday
Rain. Mostly cloudy, with a high near 58. Windy, with a west wind 5 to 15 mph increasing to 22 to 32 mph in the afternoon. Winds could gust as high as 39 mph.
Friday Night
Rain likely, mainly before midnight. Mostly cloudy, with a low around 34. Windy.
Saturday
Mostly sunny, with a high near 47. Windy.
Saturday Night
Mostly cloudy, with a low around 30.
Sunday
Mostly sunny, with a high near 48.
Sunday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 29.
Monday
Partly sunny, with a high near 48.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
8 Miles NW Grass Range MT
 47.1°N 108.94°W (Elev. 3698 ft)
Last Update:
10:51 pm MDT Oct 19, 2026
Forecast Valid:
11pm MDT Oct 19, 2026-6pm MDT Oct 26, 2026
 
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Additional Resources

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