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

Heavy Rainfall and Flooding Threats in the Midwest and Ohio Valley; Heat Continues in the Plains and Southeast

An active pattern will continue to bring heavy to excessive rainfall and flash flooding threats to the Midwest and Ohio Valley over the next couple of days. Dangerous heat continues across the central/southern Plains and Southeast U.S. into next week. There is potential for record-tying/breaking temperatures with many areas forecast to see their hottest temperatures so far this year. Read More >

Hazardous Weather Conditions

Current conditions at

Perryville Regional Airport (KPCD)

Lat: 37.87°NLon: 89.86°WElev: 372ft.

Fair

79°F

26°C

Humidity 86%
Wind Speed Calm
Barometer 29.93 in
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 14 Aug 3:15 am CDT
Extended Forecast for

Rockwood IL

Extreme Heat Warning August 14, 03:36am until August 15, 09:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 14, 03:36am until August 15, 09:00pm

    NOW until 9:00pm Sat

    Extreme Heat Warning

  • Overnight

    Low: 75 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 96. Heat index values as high as 107. South wind around 5 mph becoming light and variable in the afternoon.

    High: 96 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 75. South wind 3 to 5 mph.

    Low: 75 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 97. Heat index values as high as 107. Light southwest wind.

    High: 97 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 75. South wind 3 to 5 mph.

    Low: 75 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 98.

    High: 98 °F

    Hot

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 72.

    Low: 72 °F

    Chance
    T-storms then
    Chance
    Showers

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.

    High: 87 °F

    Slight Chance
    T-storms

Detailed Forecast

Overnight
Mostly clear, with a low around 75. South wind around 6 mph.
Friday
Mostly sunny, with a high near 96. Heat index values as high as 107. South wind around 5 mph becoming light and variable in the afternoon.
Friday Night
Mostly clear, with a low around 75. South wind 3 to 5 mph.
Saturday
Sunny and hot, with a high near 97. Heat index values as high as 107. Light southwest wind.
Saturday Night
Mostly clear, with a low around 75. South wind 3 to 5 mph.
Sunday
Sunny and hot, with a high near 98.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 72.
Monday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
Monday Night
Partly cloudy, with a low around 67.
Tuesday
Sunny, with a high near 88.
Tuesday Night
Mostly clear, with a low around 70.
Wednesday
Mostly sunny, with a high near 94.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Rockwood IL
 37.85°N 89.67°W (Elev. 600 ft)
Last Update:
3:11 am CDT Aug 14, 2026
Forecast Valid:
3am CDT Aug 14, 2026-6pm CDT Aug 20, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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