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 >

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

80°F

27°C

Humidity 82%
Wind Speed S 6 mph
Barometer 29.92 in
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 14 Aug 4:35 am CDT
Extended Forecast for

Irving ILSimilar City Names

Heat Advisory August 14, 04:48am until August 15, 09:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 14, 04:48am until August 15, 09:00pm

    NOW until 9:00pm Sat

    Heat Advisory

  • Overnight

    Low: 72 °F

    Mostly Cloudy

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms, mainly before 9am.  Mostly cloudy, then gradually becoming sunny, with a high near 92. Heat index values as high as 108. Light and variable wind becoming southeast around 5 mph.

    High: 92 °F

    Chance
    T-storms then
    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 73. Calm wind becoming east around 5 mph in the evening.

    Low: 73 °F

    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms, mainly between 9am and 10am.  Mostly sunny, with a high near 93. Heat index values as high as 109. Light and variable wind becoming southwest around 6 mph in the morning.

    High: 93 °F

    Slight Chance
    T-storms then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 74. Light southwest wind.

    Low: 74 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 92.

    High: 92 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am.  Mostly cloudy, with a low around 69.

    Low: 69 °F

    Chance
    T-storms

  • Monday

    Monday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

Detailed Forecast

Overnight
Mostly cloudy, with a low around 72. South wind around 5 mph.
Friday
A 30 percent chance of showers and thunderstorms, mainly before 9am. Mostly cloudy, then gradually becoming sunny, with a high near 92. Heat index values as high as 108. Light and variable wind becoming southeast around 5 mph.
Friday Night
Mostly clear, with a low around 73. Calm wind becoming east around 5 mph in the evening.
Saturday
A 20 percent chance of showers and thunderstorms, mainly between 9am and 10am. Mostly sunny, with a high near 93. Heat index values as high as 109. Light and variable wind becoming southwest around 6 mph in the morning.
Saturday Night
Mostly clear, with a low around 74. Light southwest wind.
Sunday
Mostly sunny, with a high near 92.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 69.
Monday
Mostly sunny, with a high near 83.
Monday Night
Partly cloudy, with a low around 63.
Tuesday
Sunny, with a high near 84.
Tuesday Night
Mostly clear, with a low around 67.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Thursday
Mostly sunny, with a high near 83.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Irving ILSimilar City Names
 39.22°N 89.41°W (Elev. 653 ft)
4:06 am CDT Aug 14, 2026
4am CDT Aug 14, 2026-6pm CDT Aug 20, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database