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

Heavy Rainfall in the Southern Plains and Mississippi Valley; Thunderstorms in Eastern Colorado on Thursday

A multiple day heavy rainfall event will begin to set up from the Southern Plains into the Mississippi Valley Thursday, peaking in intensity over the holiday weekend. Widely scattered thunderstorms are expected to develop across eastern Colorado Thursday afternoon and evening. Large hail will be the primary hazard. Read More >

Current conditions at

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

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

Clear

48°F

9°C

Humidity 31%
Wind Speed WSW 9 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 20 May 09:35 PM MDT
Extended Forecast for

2 Miles W Rock Springs WY

  • Tonight

    Tonight: Mostly cloudy, with a low around 34. Southwest wind 5 to 8 mph.

    Low: 34 °F

    Mostly Cloudy

  • Thursday

    Thursday: Scattered rain and snow showers before 9am, then rain showers. Some thunder is also possible. High near 54. West southwest wind 5 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 54 °F

    Rain/Snow
    Likely then
    Showers

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 11pm, then a slight chance of showers between 11pm and midnight. Mostly cloudy, with a low around 30. North northeast wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 60%.

    Low: 30 °F

    Showers
    Likely then
    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 57. Light and variable wind.

    High: 57 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 34. Light and variable wind.

    Low: 34 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 69. Light southwest wind becoming west 8 to 13 mph in the morning. Winds could gust as high as 23 mph.

    High: 69 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 40. Southwest wind 6 to 11 mph.

    Low: 40 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 34. Southwest wind 5 to 8 mph.
Thursday
Scattered rain and snow showers before 9am, then rain showers. Some thunder is also possible. High near 54. West southwest wind 5 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Thursday Night
Showers likely and possibly a thunderstorm before 11pm, then a slight chance of showers between 11pm and midnight. Mostly cloudy, with a low around 30. North northeast wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 60%.
Friday
Mostly sunny, with a high near 57. Light and variable wind.
Friday Night
Partly cloudy, with a low around 34. Light and variable wind.
Saturday
Sunny, with a high near 69. Light southwest wind becoming west 8 to 13 mph in the morning. Winds could gust as high as 23 mph.
Saturday Night
Mostly clear, with a low around 40. Southwest wind 6 to 11 mph.
Sunday
Sunny, with a high near 76.
Sunday Night
Partly cloudy, with a low around 42.
Memorial Day
Sunny, with a high near 78.
Monday Night
Partly cloudy, with a low around 44.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 72. Breezy.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 42. Breezy.
Wednesday
Sunny, with a high near 70. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles W Rock Springs WY
 41.6°N 109.25°W (Elev. 6398 ft)
Last Update:
9:18 pm MDT May 20, 2026
Forecast Valid:
9pm MDT May 20, 2026-6pm MDT May 27, 2026
 
Forecast Discussion
 
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Additional Resources

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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