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 Municipal MT

  • This Afternoon

    This Afternoon: A 20 percent chance of showers.  Mostly sunny, with a high near 63. Northwest wind 3 to 5 mph.

    High: 63 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A 20 percent chance of showers before 8pm.  Partly cloudy, with a low around 38. Calm wind becoming south southeast around 6 mph after midnight.

    Low: 38 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Saturday

    Saturday: Increasing clouds, with a high near 70. Light and variable wind becoming west northwest around 6 mph in the morning.

    High: 70 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 43. Light and variable wind becoming south 5 to 7 mph in the evening.

    Low: 43 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 80. South southwest wind 7 to 10 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 80 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 47. West northwest wind around 6 mph becoming light and variable  after midnight.

    Low: 47 °F

    Mostly Clear

  • Memorial Day

    Memorial Day: Sunny, with a high near 84. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 84 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 52. South southeast wind 7 to 13 mph, with gusts as high as 21 mph.

    Low: 52 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

This Afternoon
A 20 percent chance of showers. Mostly sunny, with a high near 63. Northwest wind 3 to 5 mph.
Tonight
A 20 percent chance of showers before 8pm. Partly cloudy, with a low around 38. Calm wind becoming south southeast around 6 mph after midnight.
Saturday
Increasing clouds, with a high near 70. Light and variable wind becoming west northwest around 6 mph in the morning.
Saturday Night
Partly cloudy, with a low around 43. Light and variable wind becoming south 5 to 7 mph in the evening.
Sunday
Sunny, with a high near 80. South southwest wind 7 to 10 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Mostly clear, with a low around 47. West northwest wind around 6 mph becoming light and variable after midnight.
Memorial Day
Sunny, with a high near 84. Calm wind becoming south 5 to 7 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 52. South southeast wind 7 to 13 mph, with gusts as high as 21 mph.
Tuesday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 82.
Tuesday Night
Showers likely and possibly a thunderstorm before midnight, then a chance of rain after midnight. Mostly cloudy, with a low around 47.
Wednesday
Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 70.
Wednesday Night
A chance of rain and thunderstorms. Mostly cloudy, with a low around 46.
Thursday
A chance of rain and thunderstorms. Partly sunny, with a high near 75.
Thursday Night
A chance of rain and thunderstorms. Mostly cloudy, with a low around 47.
Friday
A chance of rain and thunderstorms. Partly sunny, with a high near 77.
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ABOUT THIS FORECAST

 
Point Forecast:
Lewistown Municipal MT
 47.04°N 109.45°W (Elev. 4111 ft)
2:07 pm MDT May 22, 2026
3pm MDT May 22, 2026-6pm MDT May 29, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database