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

USCRN SITE NEAR LEWISTOWN 42WSW (JRWM8)

Lat: 46.88472°NLon: 110.28944°WElev: 5045.0ft.

NA

69°F

21°C

Humidity 31%
Wind Speed NA 0 MPH
Barometer NA
Dewpoint 37°F (3°C)
Visibility NA
Last update 04 Jul 09:00 PM MDT
Extended Forecast for

8 Miles SW Buffalo MT

  • Tonight

    Tonight: Partly cloudy, with a low around 57. North wind 6 to 8 mph becoming west after midnight.

    Low: 57 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 3pm. Sunny, with a high near 78. Northwest wind 5 to 8 mph becoming east southeast in the afternoon. Winds could gust as high as 20 mph.

    High: 78 °F

    Sunny then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 54. West southwest wind 8 to 13 mph becoming northwest after midnight. Chance of precipitation is 70%.

    Low: 54 °F

    Showers
    Likely then
    Mostly Cloudy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 69. North northwest wind 9 to 14 mph becoming east southeast in the afternoon. Winds could gust as high as 25 mph.

    High: 69 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 55. East southeast wind 9 to 17 mph becoming south southwest after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 70%.

    Low: 55 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 71. South southwest wind around 7 mph becoming north northeast in the afternoon. Chance of precipitation is 60%.

    High: 71 °F

    Chance
    Showers then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 55. North northeast wind 6 to 9 mph becoming south after midnight.

    Low: 55 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 78. South wind 8 to 10 mph, with gusts as high as 22 mph.

    High: 78 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 56.

    Low: 56 °F

    Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 57. North wind 6 to 8 mph becoming west after midnight.
Sunday
A 20 percent chance of showers and thunderstorms after 3pm. Sunny, with a high near 78. Northwest wind 5 to 8 mph becoming east southeast in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Showers and thunderstorms likely before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 54. West southwest wind 8 to 13 mph becoming northwest after midnight. Chance of precipitation is 70%.
Monday
A 20 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 69. North northwest wind 9 to 14 mph becoming east southeast in the afternoon. Winds could gust as high as 25 mph.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 55. East southeast wind 9 to 17 mph becoming south southwest after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 70%.
Tuesday
A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 71. South southwest wind around 7 mph becoming north northeast in the afternoon. Chance of precipitation is 60%.
Tuesday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 55. North northeast wind 6 to 9 mph becoming south after midnight.
Wednesday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 78. South wind 8 to 10 mph, with gusts as high as 22 mph.
Wednesday Night
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 56.
Thursday
Sunny, with a high near 72.
Thursday Night
Mostly clear, with a low around 53.
Friday
Sunny, with a high near 76.
Friday Night
Mostly clear, with a low around 55.
Saturday
Sunny, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles SW Buffalo MT
 46.75°N 109.97°W (Elev. 6129 ft)
Last Update:
9:47 pm MDT Jul 4, 2026
Forecast Valid:
10pm MDT Jul 4, 2026-6pm MDT Jul 11, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation