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

Severe Thunderstorm and Flash Flooding Threat Shifts to the Southeast U.S. Tuesday

Strong to severe thunderstorms will shift east on Tuesday, with damaging winds the most likely hazard, over parts of northern Florida and southern Georgia. Heavy to excessive rainfall will also be possible Tuesday over northern Florida. Read More >

Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

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

Mostly Cloudy

55°F

13°C

Humidity 66%
Wind Speed WNW 11 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 14 May 05:20 PM MDT
Extended Forecast for

Lewistown MTSimilar City Names

  • This Afternoon

    This Afternoon: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a steady temperature around 55. Northwest wind around 11 mph, with gusts as high as 18 mph.

    High: 55 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Patchy fog between 1am and 3am. Otherwise, partly cloudy, with a low around 40. Northwest wind 5 to 10 mph becoming south after midnight.

    Low: 40 °F

    Chance
    T-storms then
    Patchy Fog

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 66. South wind 6 to 11 mph becoming west northwest in the afternoon. Winds could gust as high as 18 mph.

    High: 66 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 45. West northwest wind 7 to 10 mph becoming southwest in the evening. Chance of precipitation is 40%.

    Low: 45 °F

    Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 70. West southwest wind 7 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.

    High: 70 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms, mainly before midnight. Partly cloudy, with a low around 47. West southwest wind 9 to 14 mph, with gusts as high as 21 mph.

    Low: 47 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Friday

    Friday: A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly sunny, with a high near 66. Breezy, with a southwest wind 11 to 16 mph becoming west northwest 24 to 29 mph in the afternoon. Winds could gust as high as 39 mph. Chance of precipitation is 40%.

    High: 66 °F

    Chance
    Showers and
    Breezy

  • Friday Night

    Friday Night: A chance of showers. Mostly cloudy, with a low around 39. Breezy, with a northwest wind 24 to 29 mph decreasing to 16 to 21 mph after midnight. Winds could gust as high as 38 mph.

    Low: 39 °F

    Chance
    Showers and
    Breezy

  • Saturday

    Saturday: A chance of showers. Partly sunny, with a high near 58.

    High: 58 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a steady temperature around 55. Northwest wind around 11 mph, with gusts as high as 18 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Patchy fog between 1am and 3am. Otherwise, partly cloudy, with a low around 40. Northwest wind 5 to 10 mph becoming south after midnight.
Wednesday
A 20 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 66. South wind 6 to 11 mph becoming west northwest in the afternoon. Winds could gust as high as 18 mph.
Wednesday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 45. West northwest wind 7 to 10 mph becoming southwest in the evening. Chance of precipitation is 40%.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 70. West southwest wind 7 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.
Thursday Night
A 30 percent chance of showers and thunderstorms, mainly before midnight. Partly cloudy, with a low around 47. West southwest wind 9 to 14 mph, with gusts as high as 21 mph.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly sunny, with a high near 66. Breezy, with a southwest wind 11 to 16 mph becoming west northwest 24 to 29 mph in the afternoon. Winds could gust as high as 39 mph. Chance of precipitation is 40%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 39. Breezy, with a northwest wind 24 to 29 mph decreasing to 16 to 21 mph after midnight. Winds could gust as high as 38 mph.
Saturday
A chance of showers. Partly sunny, with a high near 58.
Saturday Night
A chance of showers, mainly before midnight. Partly cloudy, with a low around 36.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 60.
Sunday Night
A slight chance of showers. Mostly cloudy, with a low around 38.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 59.
Monday Night
A chance of showers. Mostly cloudy, with a low around 38.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 57.
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ABOUT THIS FORECAST

 
Point Forecast:
Lewistown MTSimilar City Names
 47.07°N 109.43°W (Elev. 3898 ft)
Last Update:
2:19 pm MDT May 14, 2024
Forecast Valid:
5pm MDT May 14, 2024-6pm MDT May 21, 2024
 
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