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Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

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

Clear

21°F

-6°C

Humidity 62%
Wind Speed W 6 MPH
Barometer 30.0 in (1015.92 mb)
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill13°F (-11°C)
Last update 20 Jan 11:05 PM MST
Extended Forecast for

Lewistown Municipal MT

  • Tonight

    Tonight: Increasing clouds, with a low around 15. West northwest wind 13 to 18 mph, with gusts as high as 31 mph.

    Low: 15 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Cloudy, then gradually becoming mostly sunny, with a high near 22. Northwest wind 11 to 17 mph, with gusts as high as 29 mph.

    High: 22 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 4. Wind chill values as low as -5. West northwest wind 5 to 7 mph.

    Low: 4 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 13. Wind chill values as low as -5. West northwest wind 7 to 9 mph, with gusts as high as 18 mph.

    High: 13 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around -8. North northwest wind 6 to 8 mph becoming east after midnight.

    Low: -8 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 9. East wind around 6 mph becoming west northwest in the morning.

    High: 9 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around -3. Northwest wind around 6 mph becoming west southwest in the evening.

    Low: -3 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 23. West wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 23 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 7.

    Low: 7 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 15. West northwest wind 13 to 18 mph, with gusts as high as 31 mph.
Wednesday
Cloudy, then gradually becoming mostly sunny, with a high near 22. Northwest wind 11 to 17 mph, with gusts as high as 29 mph.
Wednesday Night
Mostly cloudy, with a low around 4. Wind chill values as low as -5. West northwest wind 5 to 7 mph.
Thursday
Partly sunny, with a high near 13. Wind chill values as low as -5. West northwest wind 7 to 9 mph, with gusts as high as 18 mph.
Thursday Night
Mostly cloudy, with a low around -8. North northwest wind 6 to 8 mph becoming east after midnight.
Friday
Mostly sunny, with a high near 9. East wind around 6 mph becoming west northwest in the morning.
Friday Night
Partly cloudy, with a low around -3. Northwest wind around 6 mph becoming west southwest in the evening.
Saturday
Partly sunny, with a high near 23. West wind 6 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Mostly cloudy, with a low around 7.
Sunday
Mostly sunny, with a high near 35.
Sunday Night
Partly cloudy, with a low around 17.
Monday
Mostly sunny, with a high near 43.
Monday Night
Mostly cloudy, with a low around 23.
Tuesday
Mostly sunny, with a high near 44.
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ABOUT THIS FORECAST

 
Point Forecast:
Lewistown Municipal MT
 47.04°N 109.45°W (Elev. 4111 ft)
9:34 pm MST Jan 20, 2026
11pm MST Jan 20, 2026-6pm MST Jan 27, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database