Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Jefferson River Valley (JVWM)

Lat: 45.79778°NLon: 112.16528°WElev: 4415.0ft.

NA

74°F

23°C

Humidity 42%
Wind Speed S 8 MPH
Barometer NA
Dewpoint 50°F (10°C)
Visibility NA
Last update 19 Aug 11:45 AM MDT
Extended Forecast for

8 Miles NNW Waterloo MT

  • This Afternoon

    This Afternoon: Sunny, with a high near 83. South southwest wind around 8 mph becoming west northwest. Winds could gust as high as 18 mph.

    High: 83 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 52. Northwest wind 3 to 8 mph.

    Low: 52 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 88. Light and variable wind becoming south 5 to 8 mph in the morning. Winds could gust as high as 21 mph.

    High: 88 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 57. East wind around 5 mph becoming light and variable  in the evening.

    Low: 57 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 88. Calm wind becoming east southeast around 5 mph in the afternoon.

    High: 88 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers.  Mostly cloudy, with a low around 59. East wind around 6 mph becoming calm  after midnight.

    Low: 59 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after noon.  Mostly cloudy, with a high near 82. Light southwest wind becoming west southwest 5 to 10 mph in the afternoon. Winds could gust as high as 23 mph.  Chance of precipitation is 50%.

    High: 82 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 54. West southwest wind 6 to 8 mph, with gusts as high as 20 mph.

    Low: 54 °F

    Chance
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: A slight chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

This Afternoon
Sunny, with a high near 83. South southwest wind around 8 mph becoming west northwest. Winds could gust as high as 18 mph.
Tonight
Mostly clear, with a low around 52. Northwest wind 3 to 8 mph.
Thursday
Sunny, with a high near 88. Light and variable wind becoming south 5 to 8 mph in the morning. Winds could gust as high as 21 mph.
Thursday Night
Partly cloudy, with a low around 57. East wind around 5 mph becoming light and variable in the evening.
Friday
Mostly sunny, with a high near 88. Calm wind becoming east southeast around 5 mph in the afternoon.
Friday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 59. East wind around 6 mph becoming calm after midnight.
Saturday
A chance of showers, with thunderstorms also possible after noon. Mostly cloudy, with a high near 82. Light southwest wind becoming west southwest 5 to 10 mph in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 50%.
Saturday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 54. West southwest wind 6 to 8 mph, with gusts as high as 20 mph.
Sunday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 81.
Sunday Night
Partly cloudy, with a low around 51.
Monday
Sunny, with a high near 81.
Monday Night
A slight chance of showers. Mostly cloudy, with a low around 54.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles NNW Waterloo MT
 45.81°N 112.27°W (Elev. 5138 ft)
10:36 am MDT Aug 19, 2026
12pm MDT Aug 19, 2026-6pm MDT Aug 25, 2026
 
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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