Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Hazardous Weather Conditions

Current conditions at

Chicago, Chicago-O'Hare International Airport (KORD)

Lat: 41.98°NLon: 87.9°WElev: 666ft.

A Few Clouds

67°F

19°C

Humidity 97%
Wind Speed SW 3 mph
Barometer 29.91 in (1012.2 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 18 Aug 11:51 pm CDT
Extended Forecast for

3 Miles SSE Evanston IL

  • Overnight

    Overnight: A chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 4am.  Mostly cloudy, with a low around 67. West wind 5 to 10 mph.  Chance of precipitation is 30%.

    Low: 67 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 4pm.  Partly sunny, with a high near 75. Northwest wind 5 to 10 mph becoming northeast in the afternoon.

    High: 75 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 66. East wind 5 to 10 mph.

    Low: 66 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 76. East wind around 5 mph.

    High: 76 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 66. East southeast wind around 5 mph becoming south southwest after midnight.

    Low: 66 °F

    Mostly Clear

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers.  Partly cloudy, with a low around 67. Chance of precipitation is 30%.

    Low: 67 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

Detailed Forecast

Overnight
A chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 4am. Mostly cloudy, with a low around 67. West wind 5 to 10 mph. Chance of precipitation is 30%.
Wednesday
A 20 percent chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 75. Northwest wind 5 to 10 mph becoming northeast in the afternoon.
Wednesday Night
Partly cloudy, with a low around 66. East wind 5 to 10 mph.
Thursday
Sunny, with a high near 76. East wind around 5 mph.
Thursday Night
Mostly clear, with a low around 66. East southeast wind around 5 mph becoming south southwest after midnight.
Friday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 81.
Friday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 67. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 76.
Saturday Night
Mostly clear, with a low around 65.
Sunday
Sunny, with a high near 73.
Sunday Night
Partly cloudy, with a low around 64.
Monday
Mostly sunny, with a high near 74.
Monday Night
Partly cloudy, with a low around 66.
Tuesday
Mostly sunny, with a high near 77.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Evanston IL
 42.01°N 87.67°W
9:11 pm CDT Aug 18, 2026
12am CDT Aug 19, 2026-6pm CDT Aug 25, 2026
 
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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