Excessive Rainfall and Potential Tropical Cyclone in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce locally considerable flash flooding over parts of the northwestern Gulf Coast, lower Mississippi River Valley, and Deep South through Thursday. Potential Tropical Cyclone One is forecast to become a tropical storm (Arthur) as it moves along or just off the northwestern Gulf coast through Wednesday. An outbreak of severe weather is forecast in the Midwest Wednesday. Read More >

Current conditions at

I80/US30 - Peru Hill (KCMS)

Lat: 41.54958° N Lon: 109.60197° W Elev: 6407.0 ft.

NA

61°F

16°C

Humidity 23%
Wind Speed W 4 MPH
Barometer NA
Dewpoint 23°F (-5°C)
Visibility 1.24 mi
Last update 17 Jun 03:12 AM MDT
Detailed forecast for

Rock Springs and Green River

Rest Of Tonight
Clear, breezy with lows in the mid 50s. West winds 15 to 20 mph with gusts up to 30 mph.
Wednesday
Sunny, windy with highs in the lower 80s. West winds 20 to 30 mph with gusts up to 40 mph.
Wednesday Night
Clear, breezy with lows in the mid 40s. West winds 20 to 25 mph with gusts up to 35 mph, diminishing to around 10 mph with gusts up to 20 mph after midnight.
Thursday
Mostly sunny and breezy. Highs in the lower 80s. West winds around 10 mph with gusts up to 20 mph, increasing to 15 to 20 mph with gusts up to 30 mph in the afternoon.
Thursday Night
Mostly clear and breezy. Lows in the upper 40s. Northwest winds 15 to 20 mph with gusts up to 30 mph in the evening.
Juneteenth
Mostly sunny. Highs in the mid 80s.
Friday Night
Partly cloudy. Lows in the lower 50s.
Saturday
Partly cloudy and windy. Highs around 80.
Saturday Night
Partly cloudy in the evening, then clearing. Breezy with lows in the mid 40s.
Sunday
Mostly sunny. A slight chance of. Highs around 80.
Sunday Night
Partly cloudy in the evening, then clearing. A slight chance of thunderstorms in the evening. A slight chance of showers. Lows in the mid 40s. Chance of rain 20 percent.
Monday
Mostly sunny. Highs around 80.
Monday Night
Mostly clear. Lows in the upper 40s.
Tuesday
Sunny. Highs in the mid 80s.



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133 AM MDT Wed Jun 17 2026
 
 

Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database