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

Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. 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.

Clear

80°F

27°C

Humidity 16%
Wind Speed SW 6 MPH
Barometer 30.17 in (1021.67 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 17 Aug 04:54 PM MDT
Extended Forecast for

4 Miles NNE Reliance WY

  • This Afternoon

    This Afternoon: A 10 percent chance of showers and thunderstorms. Mostly sunny, with a high near 77. Breezy, with a south southwest wind around 15 mph, with gusts as high as 23 mph.

    High: 77 °F

    Slight Chance
    T-storms and
    Breezy

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 53. West southwest wind 6 to 11 mph becoming light and variable in the evening.

    Low: 53 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 81. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 81 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 51. West wind around 5 mph becoming calm in the evening.

    Low: 51 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 87. Calm wind becoming west around 6 mph in the afternoon.

    High: 87 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 53. Light and variable wind.

    Low: 53 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 90. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 90 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

  • Thursday

    Thursday: A 10 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

This Afternoon
A 10 percent chance of showers and thunderstorms. Mostly sunny, with a high near 77. Breezy, with a south southwest wind around 15 mph, with gusts as high as 23 mph.
Tonight
A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 53. West southwest wind 6 to 11 mph becoming light and variable in the evening.
Monday
Sunny, with a high near 81. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Monday Night
Mostly clear, with a low around 51. West wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 87. Calm wind becoming west around 6 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 53. Light and variable wind.
Wednesday
Sunny, with a high near 90. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 56.
Thursday
A 10 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 87.
Thursday Night
A 10 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 54.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 84.
Friday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 52.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 84.
Saturday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 53.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNE Reliance WY
 41.74°N 109.18°W (Elev. 6818 ft)
Last Update:
3:28 pm MDT Aug 17, 2025
Forecast Valid:
5pm MDT Aug 17, 2025-6pm MDT Aug 24, 2025
 
Forecast Discussion
 
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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