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

Lewistown, Lewistown Municipal Airport (KLWT)

Lat: 47.04917°NLon: 109.46639°WElev: 4167.0ft.

Partly Cloudy

42°F

6°C

Humidity NA
Wind Speed E 13 MPH
Barometer 29.58 in (1001.69 mb)
Dewpoint N/A
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update NA
Extended Forecast for

Lewistown MT

  • Today

    Today: A 40 percent chance of rain, mainly after 3pm. Mostly cloudy, with a high near 66. East wind 11 to 14 mph, with gusts as high as 20 mph.

    High: 66 °F

    Mostly Cloudy
    then Chance
    Rain

  • Tonight

    Tonight: A chance of showers and thunderstorms, then rain likely after 9pm. Mostly cloudy, with a low around 39. South wind 7 to 14 mph becoming west after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 39 °F

    Showers
    Likely

  • Monday

    Monday: Rain likely, mainly before noon. Cloudy, with a high near 50. Windy, with a west northwest wind 14 to 19 mph increasing to 26 to 31 mph in the afternoon. Winds could gust as high as 46 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 50 °F

    Rain Likely
    and Breezy
    then Chance
    Rain and
    Windy

  • Monday Night

    Monday Night: A chance of rain before midnight, then a chance of rain and snow. Cloudy, with a low around 35. Windy, with a west wind 25 to 32 mph, with gusts as high as 45 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 35 °F

    Chance Rain
    and Breezy
    then Chance
    Rain/Snow and
    Windy

  • Tuesday

    Tuesday: A chance of snow before noon, then rain likely. Mostly cloudy, with a high near 44. Windy, with a west wind 29 to 33 mph, with gusts as high as 50 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 44 °F

    Windy. Chance
    Snow then
    Rain Likely

  • Tuesday Night

    Tuesday Night: Rain likely before 9pm, then rain and snow. Low around 32. Windy, with a west northwest wind 29 to 34 mph decreasing to 23 to 28 mph after midnight. Winds could gust as high as 48 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 32 °F

    Rain/Snow and
    Windy

  • Wednesday

    Wednesday: Rain and snow, becoming all rain after 9am. High near 38. Breezy, with a west northwest wind 24 to 28 mph, with gusts as high as 40 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 38 °F

    Breezy.
    Rain/Snow
    then Rain

  • Wednesday Night

    Wednesday Night: Rain. Cloudy, with a low around 34. Breezy, with a west northwest wind 17 to 22 mph decreasing to 11 to 16 mph after midnight. Winds could gust as high as 32 mph.

    Low: 34 °F

    Rain and
    Breezy

  • Thursday

    Thursday: Rain likely. Mostly cloudy, with a high near 51.

    High: 51 °F

    Rain Likely

Detailed Forecast

Today
A 40 percent chance of rain, mainly after 3pm. Mostly cloudy, with a high near 66. East wind 11 to 14 mph, with gusts as high as 20 mph.
Tonight
A chance of showers and thunderstorms, then rain likely after 9pm. Mostly cloudy, with a low around 39. South wind 7 to 14 mph becoming west after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
Rain likely, mainly before noon. Cloudy, with a high near 50. Windy, with a west northwest wind 14 to 19 mph increasing to 26 to 31 mph in the afternoon. Winds could gust as high as 46 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
A chance of rain before midnight, then a chance of rain and snow. Cloudy, with a low around 35. Windy, with a west wind 25 to 32 mph, with gusts as high as 45 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Tuesday
A chance of snow before noon, then rain likely. Mostly cloudy, with a high near 44. Windy, with a west wind 29 to 33 mph, with gusts as high as 50 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Tuesday Night
Rain likely before 9pm, then rain and snow. Low around 32. Windy, with a west northwest wind 29 to 34 mph decreasing to 23 to 28 mph after midnight. Winds could gust as high as 48 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Wednesday
Rain and snow, becoming all rain after 9am. High near 38. Breezy, with a west northwest wind 24 to 28 mph, with gusts as high as 40 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Wednesday Night
Rain. Cloudy, with a low around 34. Breezy, with a west northwest wind 17 to 22 mph decreasing to 11 to 16 mph after midnight. Winds could gust as high as 32 mph.
Thursday
Rain likely. Mostly cloudy, with a high near 51.
Thursday Night
A chance of rain before midnight. Mostly cloudy, with a low around 35.
Friday
A slight chance of rain. Mostly sunny, with a high near 60.
Friday Night
Mostly clear, with a low around 36.
Saturday
Sunny, with a high near 67.
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Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Lewistown MT
 47.07°N 109.43°W (Elev. 3898 ft)
Last Update:
4:44 am MDT May 5, 2024
Forecast Valid:
8am MDT May 5, 2024-6pm MDT May 11, 2024
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation