Extreme Heat Across the Southern U.S.; Flash Flooding Threats in the Mid-Atlantic, Northeast, and Four Corners Region

Dangerous and extreme heat will remain across portions of the southern U.S. this week. Heavy rainfall may bring significant flash flooding across portions of the Mid-Atlantic and Northeast through the night, and additional flash flooding concerns across New England on Wednesday. Monsoonal thunderstorms will bring a flash flood risk to the Four Corners region, especially in burn scar areas Read More >

Current conditions at

Mount Pleasant, Mount Pleasant Municipal Airport (KMPZ)

Lat: 40.95° N Lon: 91.51° W Elev: 735 ft.

Fair

72°F

22°C

Humidity 94%
Wind Speed E 3 mph
Barometer 29.92 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 28 Jul 11:55 pm CDT
Detailed forecast for

Jefferson County

Tonight
Partly cloudy. Lows in the upper 60s. East winds around 5 mph.
Wednesday
Sunny with highs in the upper 80s. Southeast winds around 5 mph.
Wednesday Night
Clear with lows in the mid 60s. Southeast winds around 5 mph.
Thursday
Mostly sunny. Humid with highs in the mid 80s. South winds 5 to 10 mph.
Thursday Night
Mostly cloudy. Showers likely after midnight. Humid with lows in the mid 60s. Southeast winds 5 to 10 mph. Chance of rain 70 percent.
Friday
A chance of thunderstorms. Showers. Highs around 80. Chance of rain 80 percent.
Friday Night
A chance of thunderstorms in the evening. Showers likely. Lows in the mid 60s. Chance of rain 70 percent.
Saturday
A chance of showers in the morning. Partly sunny. Highs in the upper 70s. Chance of rain 50 percent.
Saturday Night And Sunday
Mostly clear. Lows in the lower 60s. Highs in the lower 80s.
Sunday Night
Clear. Lows in the lower 60s.
Monday Through Tuesday
Mostly clear. Highs in the mid 80s. Lows in the mid 60s.



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837 PM CDT Tue Jul 28 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database