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Storm system to bring heavy rainfall and the potential for flash flooding over the southern Mid Atlantic and Southeast U.S.

A slow moving low pressure system will bring the threat for heavy rainfall, flash flooding, and a few strong to severe thunderstorms into Tuesday. The main threat areas include the southern Mid Atlantic and Southeast U.S. Excessive runoff may lead to flooding of low lying areas, rivers, and streams. Read More >

Current conditions at

Lewistown, Lewistown Municipal Airport (KLWT)

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

Lt Rain

8°C

46°F

Humidity 87%
Wind Speed WSW 7 MPH
Barometer 29.71 in
Dewpoint 6°C (43°F)
Visibility 16 km
Wind Chill6°C (42°F)
Last update 23 Apr 6:35 pm MDT
Extended Forecast for

Lewistown MT

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm before 9pm, then a chance of showers.  Mostly cloudy, with a low around 2. West southwest wind 16 to 21 km/h decreasing to 10 to 15 km/h after midnight. Winds could gust as high as 32 km/h.  Chance of precipitation is 60%. New precipitation amounts between 2.5 and 5 mm possible.

    Showers
    Likely then
    Chance
    Showers

    Low: 2 °C

  • Monday

    Monday: A slight chance of rain and snow showers before 8am, then a chance of rain showers.  Mostly cloudy, with a high near 12. West wind 13 to 16 km/h.  Chance of precipitation is 30%. Little or no snow accumulation expected.

    Slight Chance
    Rain/Snow
    then Chance
    Showers

    High: 12 °C

  • Monday
    Night

    Monday Night: A chance of rain before 3am, then a chance of rain and snow between 3am and 4am, then a chance of snow after 4am.  Cloudy, with a low around 0. Northwest wind 10 to 14 km/h becoming north northeast after midnight.  Chance of precipitation is 50%. Little or no snow accumulation expected.

    Chance Rain
    then Chance
    Rain/Snow

    Low: 0 °C

  • Tuesday

    Tuesday: Snow likely before 10am, then rain and snow showers likely between 10am and noon, then a chance of rain showers after noon.  Cloudy, with a high near 7. North northeast wind around 11 km/h.  Chance of precipitation is 60%. New snow accumulation of less than a half centimeter possible.

    Rain/Snow
    Likely then
    Chance
    Showers

    High: 7 °C

  • Tuesday
    Night

    Tuesday Night: A chance of rain showers before midnight, then a chance of snow showers.  Mostly cloudy, with a low around -1. East southeast wind 14 to 16 km/h.  Chance of precipitation is 30%. New snow accumulation of less than a half centimeter possible.

    Chance
    Showers then
    Chance Snow
    Showers

    Low: -1 °C

  • Wednesday

    Wednesday: A chance of rain and snow showers before noon, then rain showers likely.  Mostly cloudy, with a high near 9. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Chance
    Rain/Snow
    then Showers
    Likely

    High: 9 °C

  • Wednesday
    Night

    Wednesday Night: Showers likely, mainly before midnight.  Mostly cloudy, with a low around -1. Chance of precipitation is 60%.

    Showers
    Likely

    Low: -1 °C

  • Thursday

    Thursday: A chance of rain and snow showers before noon, then a chance of rain showers.  Mostly cloudy, with a high near 8.

    Chance
    Rain/Snow
    then Chance
    Showers

    High: 8 °C

  • Thursday
    Night

    Thursday Night: A chance of rain showers before midnight, then a chance of snow showers.  Mostly cloudy, with a low around -1.

    Chance
    Showers then
    Chance Snow
    Showers

    Low: -1 °C

Detailed Forecast

Tonight
Showers likely and possibly a thunderstorm before 9pm, then a chance of showers. Mostly cloudy, with a low around 2. West southwest wind 16 to 21 km/h decreasing to 10 to 15 km/h after midnight. Winds could gust as high as 32 km/h. Chance of precipitation is 60%. New precipitation amounts between 2.5 and 5 mm possible.
Monday
A slight chance of rain and snow showers before 8am, then a chance of rain showers. Mostly cloudy, with a high near 12. West wind 13 to 16 km/h. Chance of precipitation is 30%. Little or no snow accumulation expected.
Monday Night
A chance of rain before 3am, then a chance of rain and snow between 3am and 4am, then a chance of snow after 4am. Cloudy, with a low around 0. Northwest wind 10 to 14 km/h becoming north northeast after midnight. Chance of precipitation is 50%. Little or no snow accumulation expected.
Tuesday
Snow likely before 10am, then rain and snow showers likely between 10am and noon, then a chance of rain showers after noon. Cloudy, with a high near 7. North northeast wind around 11 km/h. Chance of precipitation is 60%. New snow accumulation of less than a half centimeter possible.
Tuesday Night
A chance of rain showers before midnight, then a chance of snow showers. Mostly cloudy, with a low around -1. East southeast wind 14 to 16 km/h. Chance of precipitation is 30%. New snow accumulation of less than a half centimeter possible.
Wednesday
A chance of rain and snow showers before noon, then rain showers likely. Mostly cloudy, with a high near 9. Chance of precipitation is 60%. Little or no snow accumulation expected.
Wednesday Night
Showers likely, mainly before midnight. Mostly cloudy, with a low around -1. Chance of precipitation is 60%.
Thursday
A chance of rain and snow showers before noon, then a chance of rain showers. Mostly cloudy, with a high near 8.
Thursday Night
A chance of rain showers before midnight, then a chance of snow showers. Mostly cloudy, with a low around -1.
Friday
A chance of snow showers before noon, then a chance of rain showers. Mostly cloudy, with a high near 8.
Friday Night
A slight chance of rain and snow showers. Mostly cloudy, with a low around -1.
Saturday
Partly sunny, with a high near 12.
Saturday Night
Mostly cloudy, with a low around 1.
Sunday
Partly sunny, with a high near 13.
Click Map For Forecast
Point Forecast:
Lewistown MT
 47.07°N 109.43°W (Elev. 1188 m)
6:24 pm MDT Apr 23, 2017
6pm MDT Apr 23, 2017-6pm MDT Apr 30, 2017
 
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