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

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Current conditions at

WISE RIVER (WRSM8)

Lat: 45.78831°NLon: 112.93808°WElev: 5853.0ft.

NA

69°F

21°C

Humidity 48%
Wind Speed E 16 MPH
Barometer NA
Dewpoint 48°F (9°C)
Visibility NA
Last update 28 Aug 12:16 PM MDT
Extended Forecast for

Dewey MT

  • This Afternoon

    This Afternoon: A slight chance of rain before 3pm, then a slight chance of showers and thunderstorms after 3pm. Mostly cloudy, with a high near 76. Southwest wind 11 to 14 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.

    High: 76 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 9pm, then a chance of rain after 9pm. Mostly cloudy, with a low around 49. Southwest wind 6 to 11 mph becoming east after midnight. Chance of precipitation is 40%.

    Low: 49 °F

    Chance
    Showers

  • Saturday

    Saturday: Rain likely, then showers and possibly a thunderstorm after noon. High near 73. West southwest wind 6 to 11 mph becoming northeast in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 80%.

    High: 73 °F

    Showers

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely before 2am, then showers likely and possibly a thunderstorm between 2am and 3am, then rain likely after 3am. Mostly cloudy, with a low around 41. Southwest wind 6 to 9 mph becoming north after midnight. Chance of precipitation is 70%.

    Low: 41 °F

    Showers
    Likely

  • Sunday

    Sunday: A chance of showers and thunderstorms before 9am, then a chance of rain between 9am and noon. Mostly sunny, with a high near 66. Breezy, with a west wind 7 to 12 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 50%.

    High: 66 °F

    Chance
    Showers then
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 39. West southwest wind 15 to 20 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 24 mph.

    Low: 39 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 78. West southwest wind 5 to 9 mph.

    High: 78 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 45. Southwest wind 5 to 9 mph.

    Low: 45 °F

    Mostly Clear

  • Tuesday

    Tuesday: A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 77.

    High: 77 °F

    Sunny then
    Chance
    Showers

Detailed Forecast

This Afternoon
A slight chance of rain before 3pm, then a slight chance of showers and thunderstorms after 3pm. Mostly cloudy, with a high near 76. Southwest wind 11 to 14 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.
Tonight
A chance of showers and thunderstorms before 9pm, then a chance of rain after 9pm. Mostly cloudy, with a low around 49. Southwest wind 6 to 11 mph becoming east after midnight. Chance of precipitation is 40%.
Saturday
Rain likely, then showers and possibly a thunderstorm after noon. High near 73. West southwest wind 6 to 11 mph becoming northeast in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 80%.
Saturday Night
Showers and thunderstorms likely before 2am, then showers likely and possibly a thunderstorm between 2am and 3am, then rain likely after 3am. Mostly cloudy, with a low around 41. Southwest wind 6 to 9 mph becoming north after midnight. Chance of precipitation is 70%.
Sunday
A chance of showers and thunderstorms before 9am, then a chance of rain between 9am and noon. Mostly sunny, with a high near 66. Breezy, with a west wind 7 to 12 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 50%.
Sunday Night
Mostly clear, with a low around 39. West southwest wind 15 to 20 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 24 mph.
Monday
Sunny, with a high near 78. West southwest wind 5 to 9 mph.
Monday Night
Mostly clear, with a low around 45. Southwest wind 5 to 9 mph.
Tuesday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 77.
Tuesday Night
Showers likely and possibly a thunderstorm before midnight, then a slight chance of showers. Mostly cloudy, with a low around 45.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 73.
Wednesday Night
Mostly cloudy, with a low around 43.
Thursday
A chance of showers. Partly sunny, with a high near 69.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Dewey MT
 45.78°N 112.85°W (Elev. 5600 ft)
Last Update:
12:31 pm MDT Aug 28, 2026
Forecast Valid:
12pm MDT Aug 28, 2026-6pm MDT Sep 3, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation