Widespread Showers in the Eastern US; Severe Thunderstorms in the Plains; Heatwave in the Desert Southwest

Widespread showers and thunderstorms across much of the central and eastern U.S. will produce areas of excessive rainfall, especially in the southern Mid-Atlantic states. Scattered severe thunderstorms are expected from Montana into portions of the central/southern Plains this weekend. A heatwave will build in the Desert Southwest, in parts of Arizona, southeastern California, and southern Nevada. Read More >

Current conditions at

Jefferson River Valley (JVWM)

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

NA

72°F

22°C

Humidity 46%
Wind Speed E 3 MPH
Barometer NA
Dewpoint 51°F (11°C)
Visibility NA
Last update 14 Jun 12:00 PM MDT
Extended Forecast for

Waterloo MT

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms, mainly after 5pm.  Mostly sunny, with a high near 83. South southwest wind around 11 mph, with gusts as high as 22 mph.

    High: 83 °F

    Chance
    T-storms

  • Tonight

    Tonight: Mostly clear, with a low around 49. South southwest wind 5 to 9 mph becoming calm  after midnight. Winds could gust as high as 18 mph.

    Low: 49 °F

    Mostly Clear

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms after noon.  Partly sunny, with a high near 81. Calm wind becoming north 5 to 8 mph in the afternoon.

    High: 81 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 49. West southwest wind 5 to 10 mph becoming light and variable  after midnight.

    Low: 49 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms after noon.  Partly sunny, with a high near 76. Calm wind becoming northwest 5 to 8 mph in the afternoon.

    High: 76 °F

    Partly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm before midnight, then a slight chance of showers.  Mostly cloudy, with a low around 47. North wind 5 to 8 mph becoming west after midnight.  Chance of precipitation is 60%.

    Low: 47 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after noon.  Partly sunny, with a high near 72. West southwest wind 5 to 10 mph, with gusts as high as 18 mph.  Chance of precipitation is 40%.

    High: 72 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 45. Northwest wind 6 to 10 mph becoming southwest after midnight.

    Low: 45 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 83. South southwest wind around 11 mph, with gusts as high as 22 mph.
Tonight
Mostly clear, with a low around 49. South southwest wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 18 mph.
Sunday
A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 81. Calm wind becoming north 5 to 8 mph in the afternoon.
Sunday Night
A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 49. West southwest wind 5 to 10 mph becoming light and variable after midnight.
Monday
A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 76. Calm wind becoming northwest 5 to 8 mph in the afternoon.
Monday Night
Showers likely and possibly a thunderstorm before midnight, then a slight chance of showers. Mostly cloudy, with a low around 47. North wind 5 to 8 mph becoming west after midnight. Chance of precipitation is 60%.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 72. West southwest wind 5 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 40%.
Tuesday Night
Mostly clear, with a low around 45. Northwest wind 6 to 10 mph becoming southwest after midnight.
Wednesday
Sunny, with a high near 80.
Wednesday Night
Mostly clear, with a low around 47.
Juneteenth
Sunny, with a high near 84.
Thursday Night
Mostly clear, with a low around 48.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
Waterloo MT
 45.71°N 112.19°W (Elev. 4528 ft)
9:10 am MDT Jun 14, 2025
1pm MDT Jun 14, 2025-6pm MDT Jun 20, 2025
 
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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