NWS Forecast for: Lewistown MT
Issued by: National Weather Service Great Falls, MT
Last Update: 8:56 am MST Feb 21, 2019
Print


  • Today

    Today: Snow likely, mainly before 1pm.  Patchy blowing snow between 11am and 1pm. Cloudy and cold, with a temperature falling to around 4 by 5pm. Wind chill values as low as -7. West northwest wind 9 to 11 mph.  Chance of precipitation is 70%. Total daytime snow accumulation of less than a half inch possible.

    Snow Likely
    and Patchy
    Blowing Snow

    High: 9 °F

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around -8. Wind chill values as low as -21. South southeast wind 5 to 7 mph.

    Decreasing
    Clouds

    Low: -8 °F

  • Friday

    Friday: Sunny, with a high near 23. Wind chill values as low as -19. South wind 7 to 10 mph becoming west southwest in the afternoon.

    Sunny


    High: 23 °F

  • Friday
    Night

    Friday Night: Patchy blowing snow after 10pm. Partly cloudy, with a low around 11. Wind chill values as low as -3. Southwest wind 9 to 11 mph.

    Patchy
    Blowing Snow

    Low: 11 °F

  • Saturday

    Saturday: A 20 percent chance of snow after 11am.  Partly sunny, with a high near 23. West southwest wind around 14 mph becoming northwest in the afternoon. Winds could gust as high as 21 mph.

    Slight Chance
    Snow

    High: 23 °F

  • Saturday
    Night

    Saturday Night: A 30 percent chance of snow.  Cloudy, with a low around -6. New snow accumulation of less than a half inch possible.

    Chance Snow


    Low: -6 °F

  • Sunday

    Sunday: A 30 percent chance of snow.  Mostly cloudy and cold, with a high near 2. New snow accumulation of less than a half inch possible.

    Chance Snow


    High: 2 °F

  • Sunday
    Night

    Sunday Night: A chance of snow.  Cloudy, with a low around -15.

    Chance Snow


    Low: -15 °F

  • Monday

    Monday: A chance of snow.  Cloudy and cold, with a high near 0.

    Chance Snow


    High: 0 °F



  • Today: Snow likely, mainly before 1pm. Patchy blowing snow between 11am and 1pm. Cloudy and cold, with a temperature falling to around 4 by 5pm. Wind chill values as low as -7. West northwest wind 9 to 11 mph. Chance of precipitation is 70%. Total daytime snow accumulation of less than a half inch possible.

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around -8. Wind chill values as low as -21. South southeast wind 5 to 7 mph.

    Friday: Sunny, with a high near 23. Wind chill values as low as -19. South wind 7 to 10 mph becoming west southwest in the afternoon.

    Friday Night: Patchy blowing snow after 10pm. Partly cloudy, with a low around 11. Wind chill values as low as -3. Southwest wind 9 to 11 mph.

    Saturday: A 20 percent chance of snow after 11am. Partly sunny, with a high near 23. West southwest wind around 14 mph becoming northwest in the afternoon. Winds could gust as high as 21 mph.

    Saturday Night: A 30 percent chance of snow. Cloudy, with a low around -6. New snow accumulation of less than a half inch possible.

    Sunday: A 30 percent chance of snow. Mostly cloudy and cold, with a high near 2. New snow accumulation of less than a half inch possible.

    Sunday Night: A chance of snow. Cloudy, with a low around -15.

    Monday: A chance of snow. Cloudy and cold, with a high near 0.

    Monday Night: A chance of snow. Cloudy, with a low around -15.

    Tuesday: Partly sunny and cold, with a high near 4.

    Tuesday Night: A slight chance of snow. Partly cloudy, with a low around -10.

    Wednesday: Mostly sunny, with a high near 15.



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

    Visit your local NWS office at: https://www.weather.gov/tfx