National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Showers and Cooler Temperatures in the East; Multi-Day Rain Event in the Southwest

A cold front in the East will bring showers and thunderstorms and much cooler temperatures from the Northeast into the Southeast. The Southwest, centered around New Mexico, will continue to see showers and thunderstorms, where there maybe isolated flash flooding. Tropical moisture will bring a multi-day period of thunderstorms and locally heavy rainfall across the Southwest beginning Thursday. Read More >

Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

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

Clear

41°F

5°C

Humidity 70%
Wind Speed SE 6 MPH
Barometer 29.95 in (1014.22 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 08 Oct 12:50 AM MDT
Extended Forecast for

Lewistown Municipal MT

  • Overnight

    Overnight: Mostly clear, with a steady temperature around 45. Southeast wind around 10 mph.

    Low: 45 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 73. South wind 6 to 10 mph becoming west in the morning.

    High: 73 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 39. South wind around 6 mph.

    Low: 39 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 68. Calm wind becoming east 5 to 9 mph in the afternoon.

    High: 68 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 40. Southeast wind 8 to 10 mph, with gusts as high as 18 mph.

    Low: 40 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 76. Southeast wind 7 to 10 mph, with gusts as high as 18 mph.

    High: 76 °F

    Sunny

  • Friday Night

    Friday Night: A 20 percent chance of rain after midnight. Partly cloudy, with a low around 47. South southeast wind 8 to 10 mph.

    Low: 47 °F

    Mostly Clear
    then Slight
    Chance Rain

  • Saturday

    Saturday: A chance of rain. Partly sunny, with a high near 65. West wind 9 to 15 mph, with gusts as high as 24 mph.

    High: 65 °F

    Chance Rain

  • Saturday Night

    Saturday Night: A chance of rain. Mostly cloudy, with a low around 33.

    Low: 33 °F

    Chance Rain

Detailed Forecast

Overnight
Mostly clear, with a steady temperature around 45. Southeast wind around 10 mph.
Wednesday
Sunny, with a high near 73. South wind 6 to 10 mph becoming west in the morning.
Wednesday Night
Mostly clear, with a low around 39. South wind around 6 mph.
Thursday
Sunny, with a high near 68. Calm wind becoming east 5 to 9 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 40. Southeast wind 8 to 10 mph, with gusts as high as 18 mph.
Friday
Sunny, with a high near 76. Southeast wind 7 to 10 mph, with gusts as high as 18 mph.
Friday Night
A 20 percent chance of rain after midnight. Partly cloudy, with a low around 47. South southeast wind 8 to 10 mph.
Saturday
A chance of rain. Partly sunny, with a high near 65. West wind 9 to 15 mph, with gusts as high as 24 mph.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 33.
Sunday
A chance of rain. Partly sunny, with a high near 47.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 25.
Columbus Day
A chance of rain and snow. Partly sunny, with a high near 48.
Monday Night
A chance of rain and snow. Partly cloudy, with a low around 27.
Tuesday
A slight chance of rain and snow. Mostly sunny, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
Lewistown Municipal MT
 47.04°N 109.45°W (Elev. 4111 ft)
Last Update:
10:26 pm MDT Oct 7, 2025
Forecast Valid:
1am MDT Oct 8, 2025-6pm MDT Oct 14, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation