Thunderstorms and Heavy Rainfall in the Southeast, Montana, and Iowa; Lowell Begins to Impact Hawaii

Strong thunderstorms with damaging winds and heavy rain are expected across portions of the Southeast. Thunderstorms may produce large hail across portions of Montana. Heavy rainfall could produce flash flooding across Iowa and vulnerable areas in Utah. Lowell will bring heavy rain, dangerous swells and rip currents to portions of Hawaii. Sweltering heat persists across the South-Central US. Read More >

Current conditions at

Rock Springs, Rock Springs-Sweetwater County Airport (KRKS)

Lat: 41.59417°NLon: 109.06528°WElev: 6759.0ft.

Clear

70°F

21°C

Humidity 26%
Wind Speed ENE 4 MPH
Barometer 30.22 in (1023.37 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 06 Sep 10:20 AM MDT
Extended Forecast for

Reliance WY

  • Today

    Today: A slight chance of showers between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm.  Increasing clouds, with a high near 81. Breezy, with a light and variable wind becoming west southwest 11 to 16 mph in the afternoon. Winds could gust as high as 24 mph.  Chance of precipitation is 50%.

    High: 81 °F

    Sunny then
    Chance
    Showers and
    Breezy

  • Tonight

    Tonight: Showers and thunderstorms likely before midnight, then a chance of showers between midnight and 4am.  Mostly cloudy, with a low around 53. Breezy, with a west southwest wind 7 to 16 mph becoming south after midnight. Winds could gust as high as 24 mph.  Chance of precipitation is 60%.

    Low: 53 °F

    Showers
    Likely and
    Breezy

  • Labor Day

    Labor Day: Sunny, with a high near 72. Breezy, with a south wind 6 to 11 mph becoming west 16 to 21 mph in the afternoon. Winds could gust as high as 31 mph.

    High: 72 °F

    Sunny and
    Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 44. Breezy, with a west wind 15 to 20 mph becoming light west southwest  after midnight. Winds could gust as high as 30 mph.

    Low: 44 °F

    Partly Cloudy
    and Breezy
    then Mostly
    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 74. Light west southwest wind becoming west 8 to 13 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 74 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 46. West northwest wind 6 to 11 mph becoming light west  in the evening. Winds could gust as high as 21 mph.

    Low: 46 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 77. Light west southwest wind becoming west northwest 6 to 11 mph in the afternoon. Winds could gust as high as 24 mph.

    High: 77 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

Detailed Forecast

Today
A slight chance of showers between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm. Increasing clouds, with a high near 81. Breezy, with a light and variable wind becoming west southwest 11 to 16 mph in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 50%.
Tonight
Showers and thunderstorms likely before midnight, then a chance of showers between midnight and 4am. Mostly cloudy, with a low around 53. Breezy, with a west southwest wind 7 to 16 mph becoming south after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 60%.
Labor Day
Sunny, with a high near 72. Breezy, with a south wind 6 to 11 mph becoming west 16 to 21 mph in the afternoon. Winds could gust as high as 31 mph.
Monday Night
Mostly clear, with a low around 44. Breezy, with a west wind 15 to 20 mph becoming light west southwest after midnight. Winds could gust as high as 30 mph.
Tuesday
Sunny, with a high near 74. Light west southwest wind becoming west 8 to 13 mph in the afternoon. Winds could gust as high as 25 mph.
Tuesday Night
Partly cloudy, with a low around 46. West northwest wind 6 to 11 mph becoming light west in the evening. Winds could gust as high as 21 mph.
Wednesday
Mostly sunny, with a high near 77. Light west southwest wind becoming west northwest 6 to 11 mph in the afternoon. Winds could gust as high as 24 mph.
Wednesday Night
Partly cloudy, with a low around 51.
Thursday
Sunny, with a high near 79.
Thursday Night
Mostly clear, with a low around 50. Breezy.
Friday
Sunny, with a high near 79.
Friday Night
Partly cloudy, with a low around 50.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 74. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
Reliance WY
 41.67°N 109.2°W (Elev. 6549 ft)
8:46 am MDT Sep 6, 2026
10am MDT Sep 6, 2026-6pm MDT Sep 12, 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