Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

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

Mostly Cloudy

N/A

Humidity 36%
Wind Speed WNW 16 MPH
Barometer NA
Dewpoint N/A
Visibility 10.00 mi
Last update 07 May 12:54 PM MDT
Extended Forecast for

Lewistown MT

Severe T-storm Watch until May 13, 09:00pm
High Wind Warning May 14, 03:00am until May 15, 12:00am
Click here for hazard details and duration
Severe T-storm Watch
High Wind Warning
  •  
    Severe T-storm Watch until May 13, 09:00pm

    NOW until 9:00pm Wed

    Severe T-storm Watch

  • This Afternoon

    High: 90 °F

    Chance
    Showers

  • Tonight

    Tonight: Showers and thunderstorms before 11pm, then a chance of showers between 11pm and midnight. Some of the storms could be severe.  Low around 41. Breezy, with a west southwest wind 13 to 18 mph increasing to 19 to 24 mph in the evening. Winds could gust as high as 37 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 41 °F

    Breezy.
    Severe
    Thunderstorms
    then Partly
    Cloudy

  • Thursday

    Thursday: Sunny, with a high near 64. Windy, with a west wind 24 to 29 mph increasing to 33 to 38 mph in the morning. Winds could gust as high as 48 mph.

    High: 64 °F

    Sunny and
    Windy

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 40. Breezy, with a west wind 23 to 28 mph decreasing to 16 to 21 mph after midnight. Winds could gust as high as 39 mph.

    Low: 40 °F

    Partly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Friday

    Friday: Sunny, with a high near 62. Breezy, with a west wind 18 to 23 mph increasing to 24 to 29 mph in the morning. Winds could gust as high as 39 mph.

    High: 62 °F

    Sunny and
    Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 36. Breezy, with a west northwest wind 17 to 22 mph becoming light and variable. Winds could gust as high as 31 mph.

    Low: 36 °F

    Mostly Clear
    and Breezy
    then Partly
    Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms after noon.  Partly sunny, with a high near 61. Light and variable wind becoming west northwest 5 to 7 mph in the afternoon.

    High: 61 °F

    Partly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: Rain likely before 3am, then a chance of rain and snow.  Mostly cloudy, with a low around 33. Northwest wind 8 to 10 mph, with gusts as high as 20 mph.

    Low: 33 °F

    Rain Likely
    then Chance
    Rain/Snow

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 90. South wind around 16 mph becoming west. Winds could gust as high as 29 mph.
Tonight
Showers and thunderstorms before 11pm, then a chance of showers between 11pm and midnight. Some of the storms could be severe. Low around 41. Breezy, with a west southwest wind 13 to 18 mph increasing to 19 to 24 mph in the evening. Winds could gust as high as 37 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Sunny, with a high near 64. Windy, with a west wind 24 to 29 mph increasing to 33 to 38 mph in the morning. Winds could gust as high as 48 mph.
Thursday Night
Increasing clouds, with a low around 40. Breezy, with a west wind 23 to 28 mph decreasing to 16 to 21 mph after midnight. Winds could gust as high as 39 mph.
Friday
Sunny, with a high near 62. Breezy, with a west wind 18 to 23 mph increasing to 24 to 29 mph in the morning. Winds could gust as high as 39 mph.
Friday Night
Partly cloudy, with a low around 36. Breezy, with a west northwest wind 17 to 22 mph becoming light and variable. Winds could gust as high as 31 mph.
Saturday
A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 61. Light and variable wind becoming west northwest 5 to 7 mph in the afternoon.
Saturday Night
Rain likely before 3am, then a chance of rain and snow. Mostly cloudy, with a low around 33. Northwest wind 8 to 10 mph, with gusts as high as 20 mph.
Sunday
A chance of rain and snow before noon, then rain showers likely. Some thunder is also possible. Mostly cloudy, with a high near 44.
Sunday Night
A chance of rain before midnight, then a chance of snow. Mostly cloudy, with a low around 29.
Monday
A chance of rain and snow. Partly sunny, with a high near 48.
Monday Night
Partly cloudy, with a low around 31.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 58.
Tuesday Night
A slight chance of rain and thunderstorms. Mostly cloudy, with a low around 36.
Wednesday
A chance of rain and thunderstorms. Partly sunny, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
Lewistown MT
 47.07°N 109.43°W (Elev. 3898 ft)
4:42 pm MDT May 13, 2026
4pm MDT May 13, 2026-6pm MDT May 20, 2026
 
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Additional Resources

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Hourly Weather Forecast

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