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

Lewistown Divide MT-200 MP 90.3 (MTLEW)

Lat: 47.07579°NLon: 109.26247°WElev: 4723.0ft.

NA

38°F

3°C

Humidity 60%
Wind Speed NNW 4 MPH
Barometer NA
Dewpoint 25°F (-4°C)
Visibility NA
Wind Chill35°F (2°C)
Last update 18 May 02:45 PM MDT
Extended Forecast for

9 Miles ESE Lewistown MT

  • Tonight

    Tonight: Mostly clear, with a low around 25. North northwest wind 5 to 7 mph becoming calm.

    Low: 25 °F

    Mostly Clear

  • Tuesday

    Tuesday: A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 57. Light and variable wind becoming west 5 to 8 mph in the morning. Chance of precipitation is 20%.

    High: 57 °F

    Sunny then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 35. South southwest wind 3 to 6 mph.

    Low: 35 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 53. West southwest wind 6 to 11 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%.

    High: 53 °F

    Mostly Sunny
    then Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 9pm, then rain, mainly after 9pm. Low around 34. West northwest wind 3 to 8 mph. Chance of precipitation is 80%.

    Low: 34 °F

    Showers

  • Thursday

    Thursday: Rain likely, mainly before noon. Partly sunny, with a high near 54. Northwest wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    High: 54 °F

    Rain Likely

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 33. Northwest wind 5 to 8 mph becoming light and variable.

    Low: 33 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 61. South southwest wind around 5 mph becoming calm.

    High: 61 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 25. North northwest wind 5 to 7 mph becoming calm.
Tuesday
A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 57. Light and variable wind becoming west 5 to 8 mph in the morning. Chance of precipitation is 20%.
Tuesday Night
A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 35. South southwest wind 3 to 6 mph.
Wednesday
Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 53. West southwest wind 6 to 11 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%.
Wednesday Night
Showers and possibly a thunderstorm before 9pm, then rain, mainly after 9pm. Low around 34. West northwest wind 3 to 8 mph. Chance of precipitation is 80%.
Thursday
Rain likely, mainly before noon. Partly sunny, with a high near 54. Northwest wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Thursday Night
Partly cloudy, with a low around 33. Northwest wind 5 to 8 mph becoming light and variable.
Friday
Mostly sunny, with a high near 61. South southwest wind around 5 mph becoming calm.
Friday Night
Partly cloudy, with a low around 38.
Saturday
Sunny, with a high near 69.
Saturday Night
Partly cloudy, with a low around 43.
Sunday
Mostly sunny, with a high near 74.
Sunday Night
Partly cloudy, with a low around 45.
Memorial Day
Mostly sunny, with a high near 76.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
9 Miles ESE Lewistown MT
 46.99°N 109.26°W (Elev. 4596 ft)
Last Update:
12:32 pm MDT May 18, 2026
Forecast Valid:
3pm MDT May 18, 2026-6pm MDT May 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation