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Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

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

Clear

-2°F

-19°C

Humidity 71%
Wind Speed N 0 MPH
Barometer 30.26 in (1024.72 mb)
Dewpoint -9°F (-23°C)
Visibility 10.00 mi
Last update 23 Jan 04:54 PM MST
Extended Forecast for

Lewistown Municipal MT

  • Tonight

    Tonight: Increasing clouds, with a temperature falling to near -4 by 8pm, then rising to around 6 during the remainder of the night. Wind chill values as low as -15. Calm wind becoming south around 6 mph in the evening.

    Low: -4 °F

    Increasing
    Clouds

  • Saturday

    Saturday: A 50 percent chance of snow.  Cloudy, with a high near 19. Wind chill values as low as zero. Northwest wind 8 to 14 mph, with gusts as high as 25 mph.  New snow accumulation of around an inch possible.

    High: 19 °F

    Chance Snow

  • Saturday Night

    Saturday Night: Snow likely, mainly before 11pm.  Cloudy, with a low around -6. Wind chill values as low as -15. Northwest wind 7 to 11 mph, with gusts as high as 21 mph.  Chance of precipitation is 70%. New snow accumulation of around an inch possible.

    Low: -6 °F

    Snow Likely
    then Chance
    Snow

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 19. Wind chill values as low as -20. Northwest wind around 6 mph becoming southwest in the afternoon.

    High: 19 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 8. Southwest wind 8 to 11 mph, with gusts as high as 18 mph.

    Low: 8 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 39. West southwest wind around 10 mph, with gusts as high as 21 mph.

    High: 39 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 19. West southwest wind around 10 mph.

    Low: 19 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 40. West southwest wind 7 to 9 mph.

    High: 40 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 20.

    Low: 20 °F

    Partly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a temperature falling to near -4 by 8pm, then rising to around 6 during the remainder of the night. Wind chill values as low as -15. Calm wind becoming south around 6 mph in the evening.
Saturday
A 50 percent chance of snow. Cloudy, with a high near 19. Wind chill values as low as zero. Northwest wind 8 to 14 mph, with gusts as high as 25 mph. New snow accumulation of around an inch possible.
Saturday Night
Snow likely, mainly before 11pm. Cloudy, with a low around -6. Wind chill values as low as -15. Northwest wind 7 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 19. Wind chill values as low as -20. Northwest wind around 6 mph becoming southwest in the afternoon.
Sunday Night
Mostly clear, with a low around 8. Southwest wind 8 to 11 mph, with gusts as high as 18 mph.
Monday
Mostly sunny, with a high near 39. West southwest wind around 10 mph, with gusts as high as 21 mph.
Monday Night
Mostly cloudy, with a low around 19. West southwest wind around 10 mph.
Tuesday
Mostly sunny, with a high near 40. West southwest wind 7 to 9 mph.
Tuesday Night
Partly cloudy, with a low around 20.
Wednesday
Mostly sunny, with a high near 44.
Wednesday Night
Mostly cloudy, with a low around 23.
Thursday
Mostly sunny, with a high near 42.
Thursday Night
Mostly cloudy, with a low around 22.
Friday
Partly sunny, with a high near 42.
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ABOUT THIS FORECAST

 
Point Forecast:
Lewistown Municipal MT
 47.04°N 109.45°W (Elev. 4111 ft)
3:42 pm MST Jan 23, 2026
5pm MST Jan 23, 2026-6pm MST Jan 30, 2026
 
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Additional Resources

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