Heat Persists in the South Central U.S. and Southwest; Heavy rains in the Desert Southwest and Central Plains

Sweltering heat remains across the South-Central Plains, Lower/Middle Mississippi Valley, and the Southwest this week with limited nighttime relief. Thunderstorms will bring heavy rainfall leading to localized flash flooding in portions of the Desert Southwest and central Plains. Isolated strong to severe thunderstorms are possible across portions of the central Plains into the Northeast. Read More >

Current conditions at

I80/US30 - Peru Hill (KCMS)

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

NA

66°F

19°C

Humidity 19%
Wind Speed WSW 6 MPH
Barometer NA
Dewpoint 23°F (-5°C)
Visibility 1.24 mi
Last update 09 Sep 11:26 AM MDT
Detailed forecast for

Rock Springs and Green River

Today
Mostly sunny and breezy. Highs in the upper 70s. West winds around 10 mph, increasing to 15 to 20 mph with gusts up to 30 mph this afternoon.
Tonight
Clear, breezy with lows in the lower 40s. West winds 15 to 20 mph with gusts up to 30 mph in the evening.
Thursday
Mostly sunny and breezy. Highs around 80. Southwest winds around 10 mph, becoming west 15 to 20 mph with gusts up to 30 mph in the afternoon.
Thursday Night
Partly cloudy and breezy. Lows in the upper 40s. West winds 15 to 20 mph with gusts up to 30 mph, becoming southwest around 10 mph after midnight.
Friday
Mostly cloudy in the morning, then becoming partly cloudy. Breezy with highs in the upper 70s. West winds 15 to 20 mph with gusts up to 35 mph.
Friday Night
Mostly clear in the evening, then becoming partly cloudy. Breezy with lows around 50.
Saturday
Partly cloudy. A slight chance of. Highs around 80.
Saturday Night
Partly cloudy and breezy. Lows around 50.
Sunday
Partly cloudy in the morning, then clearing. Breezy with highs around 70.
Sunday Night
Mostly clear and breezy. Lows around 40.
Monday
Sunny. Highs around 70.
Monday Night
Mostly clear. Lows around 40.
Tuesday
Mostly sunny. A slight chance of. Highs in the mid 70s.



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1017 AM MDT Wed Sep 9 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database