NWS Forecast for: Lewistown MT
Issued by: National Weather Service Great Falls, MT
Last Update: 11:38 am MDT Jun 3, 2020
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  • This
    Afternoon

    This Afternoon: Mostly sunny, with a high near 72. West northwest wind around 17 mph, with gusts as high as 25 mph.

    Mostly Sunny



    High: 72 °F

  • Tonight

    Tonight: Mostly cloudy, with a low around 47. West northwest wind 12 to 17 mph becoming southwest 6 to 11 mph after midnight. Winds could gust as high as 25 mph.

    Mostly Cloudy



    Low: 47 °F

  • Thursday

    Thursday: Mostly sunny, with a high near 70. South southwest wind 7 to 11 mph becoming north northwest in the afternoon.

    Mostly Sunny



    High: 70 °F

  • Thursday
    Night

    Thursday Night: Partly cloudy, with a low around 46. North northwest wind 5 to 8 mph becoming southeast after midnight.

    Partly Cloudy



    Low: 46 °F

  • Friday

    Friday: Partly sunny, with a high near 77. East southeast wind 6 to 14 mph, with gusts as high as 23 mph.

    Partly Sunny



    High: 77 °F

  • Friday
    Night

    Friday Night: A 30 percent chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 56. East southeast wind 10 to 16 mph, with gusts as high as 24 mph.

    Chance
    T-storms then
    Mostly Cloudy

    Low: 56 °F

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms after noon.  Cloudy, with a high near 80. Southeast wind 7 to 10 mph, with gusts as high as 21 mph.

    Mostly Cloudy
    then Chance
    T-storms

    High: 80 °F

  • Saturday
    Night

    Saturday Night: Showers and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms after midnight.  Mostly cloudy, with a low around 48. West wind around 11 mph, with gusts as high as 23 mph.

    Showers then
    Chance
    T-storms

    Low: 48 °F

  • Sunday

    Sunday: A chance of showers and thunderstorms.  Partly sunny, with a high near 67.

    Chance
    Showers then
    Chance
    T-storms

    High: 67 °F

  • This Afternoon: Mostly sunny, with a high near 72. West northwest wind around 17 mph, with gusts as high as 25 mph.

    Tonight: Mostly cloudy, with a low around 47. West northwest wind 12 to 17 mph becoming southwest 6 to 11 mph after midnight. Winds could gust as high as 25 mph.

    Thursday: Mostly sunny, with a high near 70. South southwest wind 7 to 11 mph becoming north northwest in the afternoon.

    Thursday Night: Partly cloudy, with a low around 46. North northwest wind 5 to 8 mph becoming southeast after midnight.

    Friday: Partly sunny, with a high near 77. East southeast wind 6 to 14 mph, with gusts as high as 23 mph.

    Friday Night: A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 56. East southeast wind 10 to 16 mph, with gusts as high as 24 mph.

    Saturday: A 50 percent chance of showers and thunderstorms after noon. Cloudy, with a high near 80. Southeast wind 7 to 10 mph, with gusts as high as 21 mph.

    Saturday Night: Showers and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 48. West wind around 11 mph, with gusts as high as 23 mph.

    Sunday: A chance of showers and thunderstorms. Partly sunny, with a high near 67.

    Sunday Night: Showers likely and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 42.

    Monday: A chance of showers and thunderstorms. Partly sunny, with a high near 57.

    Monday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 40.

    Tuesday: A chance of showers and thunderstorms. Partly sunny, with a high near 60.



    Lewistown MT
     47.07°N 109.43°W (Elev. 3898 ft)

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