Severe Thunderstorms and Flash Flooding Possible Through the Holiday Weekend

Severe thunderstorms, heavy rainfall, and additional flash flooding will remain possible across much of the central U.S. and into parts of the Ohio Valley and Mid Atlantic through Monday. Elsewhere, cool and unsettled weather will persist over the West, while record high temperatures are expected in the Southeast. Read More >

Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

Lat: 47.04917°NLon: 109.46639°WElev: 4167ft.

Overcast

50°F

10°C

Humidity 77%
Wind Speed ESE 5 MPH
Barometer 29.95 in (1013.5 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 26 May 12:54 am MDT
Extended Forecast for

Lewistown MT

  • Overnight

    Overnight: Rain likely, mainly after 5am.  Mostly cloudy, with a low around 43. East wind 5 to 7 mph.  Chance of precipitation is 60%.

    Rain Likely

    Low: 43 °F

  • Sunday

    Sunday: Rain likely before noon, then a chance of showers and thunderstorms between noon and 4pm, then showers likely and possibly a thunderstorm after 4pm.  Mostly cloudy, with a high near 59. East wind 6 to 15 mph, with gusts as high as 26 mph.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Showers
    Likely

    High: 59 °F

  • Sunday
    Night

    Sunday Night: Showers and possibly a thunderstorm, mainly before midnight, then rain after midnight.  Low around 41. Northeast wind 9 to 14 mph, with gusts as high as 24 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Showers

    Low: 41 °F

  • Memorial
    Day

    Memorial Day: Rain likely.  Cloudy, with a high near 53. Northeast wind 8 to 10 mph.  Chance of precipitation is 60%.

    Rain Likely

    High: 53 °F

  • Monday
    Night

    Monday Night: A 30 percent chance of rain before midnight.  Mostly cloudy, with a low around 37. Northeast wind 5 to 10 mph becoming light and variable.

    Chance Rain
    then Mostly
    Cloudy

    Low: 37 °F

  • Tuesday

    Tuesday: Mostly sunny, with a high near 63.

    Mostly Sunny

    High: 63 °F

  • Tuesday
    Night

    Tuesday Night: Mostly clear, with a low around 40.

    Mostly Clear

    Low: 40 °F

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 68.

    Mostly Sunny
    then Slight
    Chance
    T-storms

    High: 68 °F

  • Wednesday
    Night

    Wednesday Night: A slight chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 45.

    Slight Chance
    T-storms then
    Partly Cloudy

    Low: 45 °F

Detailed Forecast

Overnight
Rain likely, mainly after 5am. Mostly cloudy, with a low around 43. East wind 5 to 7 mph. Chance of precipitation is 60%.
Sunday
Rain likely before noon, then a chance of showers and thunderstorms between noon and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 59. East wind 6 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers and possibly a thunderstorm, mainly before midnight, then rain after midnight. Low around 41. Northeast wind 9 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Memorial Day
Rain likely. Cloudy, with a high near 53. Northeast wind 8 to 10 mph. Chance of precipitation is 60%.
Monday Night
A 30 percent chance of rain before midnight. Mostly cloudy, with a low around 37. Northeast wind 5 to 10 mph becoming light and variable.
Tuesday
Mostly sunny, with a high near 63.
Tuesday Night
Mostly clear, with a low around 40.
Wednesday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 68.
Wednesday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 45.
Thursday
A chance of showers and thunderstorms, mainly after noon. Mostly sunny, with a high near 70.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 46.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 65.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 44.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 68.
Click Map For Forecast
Point Forecast:
Lewistown MT
 47.07°N 109.43°W (Elev. 3898 ft)
2:10 pm MDT May 25, 2019
1am MDT May 26, 2019-6pm MDT Jun 1, 2019
 
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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