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

82°F

28°C

Humidity 18%
Wind Speed NA 10 MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility NA
Heat Index80°F (27°C)
Last update 04 Jul 05:00 PM MDT
Extended Forecast for

10 Miles NNE Sand Point MT

  • Tonight

    Tonight: Mostly clear, with a low around 52. West wind 6 to 10 mph, with gusts as high as 20 mph.

    Low: 52 °F

    Mostly Clear

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Increasing clouds, with a high near 71. West wind 3 to 8 mph. Winds could gust as high as 18 mph.

    High: 71 °F

    Sunny then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 49. Northwest wind 6 to 10 mph becoming southwest in the evening. Winds could gust as high as 18 mph. Chance of precipitation is 50%.

    Low: 49 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 65. South wind 5 to 13 mph becoming east northeast in the morning. Winds could gust as high as 23 mph.

    High: 65 °F

    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before 3am, then showers likely. Low around 52. Southeast wind 9 to 13 mph becoming south southwest after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 80%.

    Low: 52 °F

    Showers

  • Tuesday

    Tuesday: A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 66. Southwest wind 6 to 8 mph becoming north in the afternoon. Chance of precipitation is 70%.

    High: 66 °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 52. North northeast wind 5 to 7 mph becoming light and variable.

    Low: 52 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Wednesday

    Wednesday: A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 72. South southwest wind 6 to 8 mph.

    High: 72 °F

    Sunny then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 52.

    Low: 52 °F

    Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 52. West wind 6 to 10 mph, with gusts as high as 20 mph.
Sunday
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Increasing clouds, with a high near 71. West wind 3 to 8 mph. Winds could gust as high as 18 mph.
Sunday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 49. Northwest wind 6 to 10 mph becoming southwest in the evening. Winds could gust as high as 18 mph. Chance of precipitation is 50%.
Monday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 65. South wind 5 to 13 mph becoming east northeast in the morning. Winds could gust as high as 23 mph.
Monday Night
Showers and possibly a thunderstorm before 3am, then showers likely. Low around 52. Southeast wind 9 to 13 mph becoming south southwest after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 80%.
Tuesday
A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 66. Southwest wind 6 to 8 mph becoming north in the afternoon. Chance of precipitation is 70%.
Tuesday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 52. North northeast wind 5 to 7 mph becoming light and variable.
Wednesday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 72. South southwest wind 6 to 8 mph.
Wednesday Night
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 52.
Thursday
A slight chance of showers and thunderstorms after noon. Sunny, with a high near 66.
Thursday Night
Mostly clear, with a low around 49.
Friday
Sunny, with a high near 70.
Friday Night
Mostly clear, with a low around 51.
Saturday
Sunny, with a high near 73.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles NNE Sand Point MT
 46.95°N 110.46°W (Elev. 7251 ft)
Last Update:
4:07 pm MDT Jul 4, 2026
Forecast Valid:
5pm MDT Jul 4, 2026-6pm MDT Jul 11, 2026
 
Forecast Discussion
 
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Additional Resources

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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