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

Severe Weather and Heavy Rainfall for Southern Plains; Strong Pacific Storm Moves Ashore

Heavy rainfall and flooding concerns continue for portions of Texas into the lower Mississippi Valley. Severe thunderstorms are expected to redevelop across areas of western Texas later Saturday. Meanwhile, strong Pacific storm will move ashore this weekend. Increasing winds for many areas of the West and Southwest, heavy precipitation with snow for the higher terrain. Read More >

Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

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

Clear

57°F

14°C

Humidity 30%
Wind Speed ESE 6 MPH
Barometer 29.85 in (1010.84 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 04 May 03:05 PM MDT
Extended Forecast for

Lewistown MT

  • Tonight

    Tonight: Increasing clouds, with a low around 36. Breezy, with an east southeast wind 14 to 23 mph, with gusts as high as 34 mph.

    Low: 36 °F

    Increasing
    Clouds and
    Breezy

  • Sunday

    Sunday: A 20 percent chance of rain after 4pm. Mostly cloudy, with a high near 67. East southeast wind 10 to 14 mph, with gusts as high as 21 mph.

    High: 67 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Low around 39. South southeast wind 8 to 11 mph becoming west after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 39 °F

    Showers

  • Monday

    Monday: Rain likely. Cloudy, with a high near 49. Windy, with a west northwest wind 13 to 18 mph increasing to 25 to 30 mph in the afternoon. Winds could gust as high as 45 mph. Chance of precipitation is 70%.

    High: 49 °F

    Rain Likely
    and Windy

  • Monday Night

    Monday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 34. Windy, with a west wind 30 to 35 mph increasing to 36 to 41 mph after midnight. Winds could gust as high as 60 mph.

    Low: 34 °F

    Chance Rain
    and Windy

  • Tuesday

    Tuesday: A chance of rain and snow before noon, then rain likely. Mostly cloudy, with a high near 42. Windy, with a west wind 34 to 41 mph, with gusts as high as 60 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 42 °F

    Windy. Chance
    Rain/Snow
    then Rain
    Likely

  • Tuesday Night

    Tuesday Night: Rain before midnight, then rain and snow. Low around 32. Windy, with a west northwest wind 34 to 39 mph decreasing to 28 to 33 mph after midnight. Winds could gust as high as 60 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Low: 32 °F

    Rain and
    Windy then
    Rain/Snow and
    Breezy

  • Wednesday

    Wednesday: Rain, possibly mixed with snow, becoming all rain after noon. Cloudy, with a high near 41. Breezy, with a west northwest wind 21 to 26 mph, with gusts as high as 39 mph.

    High: 41 °F

    Breezy.
    Rain/Snow
    then Rain

  • Wednesday Night

    Wednesday Night: Rain. Cloudy, with a low around 33.

    Low: 33 °F

    Rain

Detailed Forecast

Tonight
Increasing clouds, with a low around 36. Breezy, with an east southeast wind 14 to 23 mph, with gusts as high as 34 mph.
Sunday
A 20 percent chance of rain after 4pm. Mostly cloudy, with a high near 67. East southeast wind 10 to 14 mph, with gusts as high as 21 mph.
Sunday Night
Showers and possibly a thunderstorm. Low around 39. South southeast wind 8 to 11 mph becoming west after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
Rain likely. Cloudy, with a high near 49. Windy, with a west northwest wind 13 to 18 mph increasing to 25 to 30 mph in the afternoon. Winds could gust as high as 45 mph. Chance of precipitation is 70%.
Monday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 34. Windy, with a west wind 30 to 35 mph increasing to 36 to 41 mph after midnight. Winds could gust as high as 60 mph.
Tuesday
A chance of rain and snow before noon, then rain likely. Mostly cloudy, with a high near 42. Windy, with a west wind 34 to 41 mph, with gusts as high as 60 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Tuesday Night
Rain before midnight, then rain and snow. Low around 32. Windy, with a west northwest wind 34 to 39 mph decreasing to 28 to 33 mph after midnight. Winds could gust as high as 60 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Wednesday
Rain, possibly mixed with snow, becoming all rain after noon. Cloudy, with a high near 41. Breezy, with a west northwest wind 21 to 26 mph, with gusts as high as 39 mph.
Wednesday Night
Rain. Cloudy, with a low around 33.
Thursday
Rain likely. Mostly cloudy, with a high near 49.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 34.
Friday
A slight chance of rain. Mostly sunny, with a high near 59.
Friday Night
Mostly clear, with a low around 37.
Saturday
Sunny, with a high near 67.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Lewistown MT
 47.07°N 109.43°W (Elev. 3898 ft)
Last Update:
2:11 pm MDT May 4, 2024
Forecast Valid:
3pm MDT May 4, 2024-6pm MDT May 11, 2024
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation