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

Lewistown, Lewistown Municipal Airport (KLWT)

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

Overcast

8°C

46°F

Humidity 85%
Wind Speed ESE 11 MPH
Barometer 29.71 in (1006.1 mb)
Dewpoint 6°C (42°F)
Visibility 16 km
Wind Chill5°C (41°F)
Last update 17 Jun 04:54 PM MDT
Extended Forecast for

Lewistown MT

  • This Afternoon

    This Afternoon: Showers and possibly a thunderstorm. High near 12. East northeast wind around 18 km/h, with gusts as high as 34 km/h. Chance of precipitation is 100%.

    High: 12 °C

    Showers

  • Tonight

    Tonight: Showers and possibly a thunderstorm. Low around 1. Northeast wind 16 to 18 km/h becoming west northwest after midnight. Winds could gust as high as 34 km/h. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 cm possible.

    Low: 1 °C

    Showers

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms, mainly between 11am and 4pm. High near 13. West northwest wind 10 to 16 km/h. Chance of precipitation is 80%. New rainfall amounts between 2.5 and 5 mm possible.

    High: 13 °C

    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Patchy fog after 1am. Otherwise, partly cloudy, with a low around 1. West northwest wind 8 to 10 km/h becoming south in the evening. Chance of precipitation is 30%.

    Low: 1 °C

    Chance
    T-storms then
    Patchy Fog

  • Juneteenth

    Juneteenth: A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 19. South wind 5 to 10 km/h.

    High: 19 °C

    Sunny then
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 5. South southeast wind 8 to 10 km/h.

    Low: 5 °C

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 22. South southeast wind 5 to 14 km/h becoming east in the afternoon. Winds could gust as high as 29 km/h.

    High: 22 °C

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 8. East wind 5 to 14 km/h.

    Low: 8 °C

    Chance
    Showers

  • Friday

    Friday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 22.

    High: 22 °C

    Showers
    Likely

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. High near 12. East northeast wind around 18 km/h, with gusts as high as 34 km/h. Chance of precipitation is 100%.
Tonight
Showers and possibly a thunderstorm. Low around 1. Northeast wind 16 to 18 km/h becoming west northwest after midnight. Winds could gust as high as 34 km/h. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 cm possible.
Tuesday
Showers and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms, mainly between 11am and 4pm. High near 13. West northwest wind 10 to 16 km/h. Chance of precipitation is 80%. New rainfall amounts between 2.5 and 5 mm possible.
Tuesday Night
A chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Patchy fog after 1am. Otherwise, partly cloudy, with a low around 1. West northwest wind 8 to 10 km/h becoming south in the evening. Chance of precipitation is 30%.
Juneteenth
A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 19. South wind 5 to 10 km/h.
Wednesday Night
Partly cloudy, with a low around 5. South southeast wind 8 to 10 km/h.
Thursday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 22. South southeast wind 5 to 14 km/h becoming east in the afternoon. Winds could gust as high as 29 km/h.
Thursday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 8. East wind 5 to 14 km/h.
Friday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 22.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 8.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 24.
Saturday Night
Mostly clear, with a low around 11.
Sunday
Sunny, with a high near 29.
Sunday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 12.
Monday
A slight chance of showers. Mostly sunny, with a high near 27.
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ABOUT THIS FORECAST

 
Point Forecast:
Lewistown MT
 47.07°N 109.43°W (Elev. 3898 m)
Last Update:
5:04 pm MDT Jun 17, 2024
Forecast Valid:
5pm MDT Jun 17, 2024-6pm MDT Jun 24, 2024
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation