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

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Hazardous Weather Conditions

Current conditions at

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

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

heavy rain

52°F

11°C

Humidity 76%
Wind Speed S 11 MPH
Barometer 30.22 in (1023.37 mb)
Dewpoint 45°F (7°C)
Visibility 1.75 mi
Last update 19 Sep 03:20 PM MDT
Extended Forecast for

16 Miles NNW Reliance WY

  • This Afternoon

    This Afternoon: Showers likely and possibly a thunderstorm before 5pm, then a chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 63. West wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    High: 63 °F

    Showers
    Likely

  • Tonight

    Tonight: A chance of showers and thunderstorms before midnight, then a slight chance of showers between midnight and 3am. Mostly cloudy, with a low around 36. West wind 3 to 8 mph. Chance of precipitation is 40%.

    Low: 36 °F

    Chance
    Showers

  • Sunday

    Sunday: Patchy fog before 8am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 62. West wind 3 to 8 mph.

    High: 62 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 36. Calm wind becoming east around 6 mph.

    Low: 36 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 66. Light and variable wind.

    High: 66 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 39. Light and variable wind.

    Low: 39 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 70. Calm wind becoming south southwest around 6 mph in the afternoon.

    High: 70 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 42. Chance of precipitation is 40%.

    Low: 42 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Showers likely and possibly a thunderstorm before 5pm, then a chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 63. West wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Tonight
A chance of showers and thunderstorms before midnight, then a slight chance of showers between midnight and 3am. Mostly cloudy, with a low around 36. West wind 3 to 8 mph. Chance of precipitation is 40%.
Sunday
Patchy fog before 8am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 62. West wind 3 to 8 mph.
Sunday Night
Partly cloudy, with a low around 36. Calm wind becoming east around 6 mph.
Monday
Sunny, with a high near 66. Light and variable wind.
Monday Night
Partly cloudy, with a low around 39. Light and variable wind.
Tuesday
Mostly sunny, with a high near 70. Calm wind becoming south southwest around 6 mph in the afternoon.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 42. Chance of precipitation is 40%.
Wednesday
Mostly sunny, with a high near 69.
Wednesday Night
Mostly clear, with a low around 41.
Thursday
Sunny, with a high near 72.
Thursday Night
Partly cloudy, with a low around 43.
Friday
Mostly sunny, with a high near 72.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
16 Miles NNW Reliance WY
 41.88°N 109.26°W (Elev. 6883 ft)
Last Update:
3:21 pm MDT Sep 19, 2026
Forecast Valid:
3pm MDT Sep 19, 2026-6pm MDT Sep 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation