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 >

Current conditions at

St George Regional Airport (KSGU)

Lat: 37.0451° N Lon: 113.50561° W Elev: 2872.0 ft.

Clear

86°F

30°C

Humidity 23%
Wind Speed N 5 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 17 Aug 11:05 AM MDT
Detailed forecast for

Southern Mountains

Today
Sunny. Highs around 70.
Tonight
Clear. Lows around 50.
Monday
Sunny. Highs in the mid 70s.
Monday Night
Clear. Lows in the lower 50s.
Tuesday
A 10 percent chance of showers and thunderstorms in the afternoon. Sunny. Highs in the mid 70s.
Tuesday Night
A 10 percent chance of showers and thunderstorms in the evening. Mostly clear. Lows in the mid 50s.
Wednesday
Sunny in the morning, then partly sunny with a 40 percent chance of showers and thunderstorms in the afternoon. Highs in the upper 70s.
Wednesday Night
Mostly cloudy with a chance of rain showers in the evening, then mostly clear after midnight. Lows in the upper 50s. Chance of showers 30 percent.
Thursday
Sunny in the morning, then partly sunny with a 50 percent chance of showers and thunderstorms in the afternoon. Highs in the upper 70s.
Thursday Night
Mostly cloudy with a chance of rain showers in the evening, then partly cloudy after midnight. Lows in the upper 50s. Chance of showers 40 percent.
Friday
Partly cloudy in the morning, then mostly cloudy with rain showers likely and a chance of thunderstorms in the afternoon. Highs in the upper 70s. Chance of precipitation 70 percent.
Friday Night
Mostly cloudy with a chance of rain showers in the evening, then partly cloudy after midnight. Lows in the mid 50s. Chance of showers 50 percent.
Saturday
Partly cloudy in the morning, then mostly cloudy with rain showers likely and a chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of precipitation 70 percent. =



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305 AM MDT Sun Aug 17 2025
 
 

Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database