Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

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

Rain

50°F

10°C

Humidity 76%
Wind Speed WNW 8 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 08 Aug 09:20 AM MDT
Extended Forecast for

Lewistown MT

  • Today

    Today: Showers likely, with thunderstorms also possible after noon.  Mostly cloudy, with a high near 67. Breezy, with a west northwest wind 15 to 23 mph, with gusts as high as 34 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 67 °F

    Showers
    Likely and
    Breezy

  • Tonight

    Tonight: A chance of showers and thunderstorms before 9pm, then a slight chance of showers.  Mostly cloudy, with a low around 50. Breezy, with a west wind 13 to 22 mph, with gusts as high as 36 mph.  Chance of precipitation is 30%.

    Low: 50 °F

    Chance
    Showers and
    Breezy

  • Saturday

    Saturday: A 20 percent chance of showers after noon.  Widespread haze after 10am. Mostly sunny, with a high near 71. Breezy, with a west northwest wind 13 to 18 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 33 mph.

    High: 71 °F

    Breezy. Haze
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: Widespread haze before 7pm. Partly cloudy, with a low around 49. Northwest wind 12 to 17 mph becoming southwest 5 to 10 mph after midnight. Winds could gust as high as 29 mph.

    Low: 49 °F

    Haze then
    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 78. South southwest wind 5 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 78 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 53. Northwest wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 18 mph.

    Low: 53 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 84. South wind 5 to 9 mph becoming west northwest in the afternoon.

    High: 84 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 56. North northwest wind around 7 mph becoming south southeast after midnight.

    Low: 56 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

Detailed Forecast

Today
Showers likely, with thunderstorms also possible after noon. Mostly cloudy, with a high near 67. Breezy, with a west northwest wind 15 to 23 mph, with gusts as high as 34 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms before 9pm, then a slight chance of showers. Mostly cloudy, with a low around 50. Breezy, with a west wind 13 to 22 mph, with gusts as high as 36 mph. Chance of precipitation is 30%.
Saturday
A 20 percent chance of showers after noon. Widespread haze after 10am. Mostly sunny, with a high near 71. Breezy, with a west northwest wind 13 to 18 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 33 mph.
Saturday Night
Widespread haze before 7pm. Partly cloudy, with a low around 49. Northwest wind 12 to 17 mph becoming southwest 5 to 10 mph after midnight. Winds could gust as high as 29 mph.
Sunday
Sunny, with a high near 78. South southwest wind 5 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Mostly clear, with a low around 53. Northwest wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 18 mph.
Monday
Sunny, with a high near 84. South wind 5 to 9 mph becoming west northwest in the afternoon.
Monday Night
Mostly clear, with a low around 56. North northwest wind around 7 mph becoming south southeast after midnight.
Tuesday
Sunny, with a high near 82.
Tuesday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 54.
Wednesday
Sunny, with a high near 81.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 52.
Thursday
Sunny, with a high near 79.
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ABOUT THIS FORECAST

 
Point Forecast:
Lewistown MT
 47.09°N 109.46°W (Elev. 3898 ft)
2:28 am MDT Aug 8, 2025
9am MDT Aug 8, 2025-6pm MDT Aug 14, 2025
 
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Additional Resources

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