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

Excessive Rainfall and Severe Thunderstorms Threaten the Southern U.S. Again Friday

Heavy to excessive rainfall is forecast for eastern Louisiana into central Alabama which could bring flash, urban, and riverine flooding Friday. Scattered severe thunderstorms with a few tornadoes, very large hail, and damaging winds are possible across parts of the Gulf Coast States Friday and Friday night. Read More >

Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

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

Partly Cloudy

10°C

50°F

Humidity 34%
Wind Speed WNW 29 MPH
Barometer 29.74 in (1007.11 mb)
Dewpoint -5°C (23°F)
Visibility 16 km
Wind Chill6°C (42°F)
Last update 17 May 07:05 PM MDT
Extended Forecast for

Lewistown MT

  • Tonight

    Tonight: A chance of showers and thunderstorms before midnight, then a slight chance of showers between midnight and 1am. Mostly cloudy, with a low around 2. Breezy, with a west wind 37 to 42 km/h decreasing to 23 to 28 km/h after midnight. Winds could gust as high as 65 km/h. Chance of precipitation is 30%.

    Low: 2 °C

    Chance
    Showers and
    Breezy

  • Saturday

    Saturday: Sunny, with a high near 16. West wind 23 to 28 km/h increasing to 29 to 34 km/h. Winds could gust as high as 47 km/h.

    High: 16 °C

    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 3. Northwest wind 13 to 18 km/h becoming light and variable after midnight. Winds could gust as high as 34 km/h.

    Low: 3 °C

    Increasing
    Clouds

  • Sunday

    Sunday: Showers likely, mainly after noon. Mostly cloudy, with a high near 12. West southwest wind 5 to 10 km/h becoming northwest 16 to 21 km/h in the morning. Winds could gust as high as 35 km/h. Chance of precipitation is 70%.

    High: 12 °C

    Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 2. West wind 11 to 18 km/h, with gusts as high as 34 km/h.

    Low: 2 °C

    Chance
    Showers

  • Monday

    Monday: A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 12. West wind 11 to 21 km/h, with gusts as high as 34 km/h. Chance of precipitation is 70%.

    High: 12 °C

    Chance
    Showers then
    Showers
    Likely

  • Monday Night

    Monday Night: A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 1. Northwest wind 11 to 16 km/h becoming west 5 to 10 km/h after midnight. Winds could gust as high as 29 km/h.

    Low: 1 °C

    Slight Chance
    Showers then
    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of showers and thunderstorms after noon. Partly sunny, with a high near 15. West southwest wind 5 to 11 km/h becoming northwest in the afternoon.

    High: 15 °C

    Partly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 3.

    Low: 3 °C

    Partly Cloudy

Detailed Forecast

Tonight
A chance of showers and thunderstorms before midnight, then a slight chance of showers between midnight and 1am. Mostly cloudy, with a low around 2. Breezy, with a west wind 37 to 42 km/h decreasing to 23 to 28 km/h after midnight. Winds could gust as high as 65 km/h. Chance of precipitation is 30%.
Saturday
Sunny, with a high near 16. West wind 23 to 28 km/h increasing to 29 to 34 km/h. Winds could gust as high as 47 km/h.
Saturday Night
Increasing clouds, with a low around 3. Northwest wind 13 to 18 km/h becoming light and variable after midnight. Winds could gust as high as 34 km/h.
Sunday
Showers likely, mainly after noon. Mostly cloudy, with a high near 12. West southwest wind 5 to 10 km/h becoming northwest 16 to 21 km/h in the morning. Winds could gust as high as 35 km/h. Chance of precipitation is 70%.
Sunday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 2. West wind 11 to 18 km/h, with gusts as high as 34 km/h.
Monday
A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 12. West wind 11 to 21 km/h, with gusts as high as 34 km/h. Chance of precipitation is 70%.
Monday Night
A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 1. Northwest wind 11 to 16 km/h becoming west 5 to 10 km/h after midnight. Winds could gust as high as 29 km/h.
Tuesday
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 15. West southwest wind 5 to 11 km/h becoming northwest in the afternoon.
Tuesday Night
Partly cloudy, with a low around 3.
Wednesday
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 16.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 3.
Thursday
Showers likely. Mostly cloudy, with a high near 11.
Thursday Night
Showers likely. Mostly cloudy, with a low around 2.
Friday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 14.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Lewistown MT
 47.07°N 109.43°W (Elev. 3898 m)
Last Update:
4:24 pm MDT May 17, 2024
Forecast Valid:
7pm MDT May 17, 2024-6pm MDT May 24, 2024
 
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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