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Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

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

Overcast

21°F

-6°C

Humidity 67%
Wind Speed WNW 9 MPH
Barometer 30.19 in (1022.35 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill11°F (-12°C)
Last update 21 Jan 12:55 PM MST
Extended Forecast for

Lewistown Municipal MT

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 26. West northwest wind 10 to 14 mph, with gusts as high as 24 mph.

    High: 26 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 6. Wind chill values as low as zero. West wind around 7 mph.

    Low: 6 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 16. Wind chill values as low as -5. West northwest wind 6 to 9 mph, with gusts as high as 18 mph.

    High: 16 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A 20 percent chance of snow.  Mostly cloudy, with a low around -7. Wind chill values as low as -15. North wind 5 to 8 mph becoming east after midnight.

    Low: -7 °F

    Slight Chance
    Snow

  • Friday

    Friday: Partly sunny, with a high near 9. East southeast wind around 5 mph becoming light and variable.

    High: 9 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around -4. Northwest wind around 6 mph becoming south southwest in the evening.

    Low: -4 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 21. West northwest wind 6 to 10 mph, with gusts as high as 18 mph.

    High: 21 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 4. West wind 7 to 9 mph.

    Low: 4 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 29.

    High: 29 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 26. West northwest wind 10 to 14 mph, with gusts as high as 24 mph.
Tonight
Mostly cloudy, with a low around 6. Wind chill values as low as zero. West wind around 7 mph.
Thursday
Mostly cloudy, with a high near 16. Wind chill values as low as -5. West northwest wind 6 to 9 mph, with gusts as high as 18 mph.
Thursday Night
A 20 percent chance of snow. Mostly cloudy, with a low around -7. Wind chill values as low as -15. North wind 5 to 8 mph becoming east after midnight.
Friday
Partly sunny, with a high near 9. East southeast wind around 5 mph becoming light and variable.
Friday Night
Partly cloudy, with a low around -4. Northwest wind around 6 mph becoming south southwest in the evening.
Saturday
Partly sunny, with a high near 21. West northwest wind 6 to 10 mph, with gusts as high as 18 mph.
Saturday Night
Mostly cloudy, with a low around 4. West wind 7 to 9 mph.
Sunday
Mostly sunny, with a high near 29.
Sunday Night
Partly cloudy, with a low around 13.
Monday
Mostly sunny, with a high near 39.
Monday Night
Mostly cloudy, with a low around 21.
Tuesday
Partly sunny, with a high near 38.
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ABOUT THIS FORECAST

 
Point Forecast:
Lewistown Municipal MT
 47.04°N 109.45°W (Elev. 4111 ft)
12:47 pm MST Jan 21, 2026
1pm MST Jan 21, 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