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

Strong Storms and Heavy Rainfall Threats; Dangerous Heat for Southern Plains into the Southwest

Thunderstorms, some severe, will impact areas of the Plains into the Midwest today. Rainfall can be locally heavy as well from these storms with isolated instances of flash flooding. Monsoonal flow will enhance rainfall across the Four Corners into the central Rockies today. Meanwhile, summer heat continues for the southern Plains, Southwest into southern California. Read More >

Hazardous Weather Conditions

Current conditions at

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

Lat: 41.98°NLon: 87.9°WElev: 666ft.

Mostly Cloudy

69°F

21°C

Humidity 66%
Wind Speed S 5 mph
Barometer 30.13 in (1020.1 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 25 Aug 8:51 am CDT
Extended Forecast for

Evanston IL

  • Today

    Today: Mostly sunny, with a high near 76. South southwest wind 5 to 10 mph becoming southeast in the afternoon.

    High: 76 °F

    Mostly Sunny

  • Tonight

    Tonight: A 20 percent chance of showers after 3am. Mostly cloudy, with a low around 66. South southwest wind 5 to 10 mph.

    Low: 66 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly between noon and 4pm. Mostly sunny, with a high near 83. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 83 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 66. West northwest wind 5 to 10 mph.

    Low: 66 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 76. North northeast wind 5 to 10 mph.

    High: 76 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 76. South southwest wind 5 to 10 mph becoming southeast in the afternoon.
Tonight
A 20 percent chance of showers after 3am. Mostly cloudy, with a low around 66. South southwest wind 5 to 10 mph.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly between noon and 4pm. Mostly sunny, with a high near 83. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday Night
A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 66. West northwest wind 5 to 10 mph.
Thursday
Sunny, with a high near 76. North northeast wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 66.
Friday
Sunny, with a high near 75.
Friday Night
Partly cloudy, with a low around 65.
Saturday
Mostly sunny, with a high near 79.
Saturday Night
Mostly cloudy, with a low around 69.
Sunday
Partly sunny, with a high near 83.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 72.
Monday
A chance of showers. Partly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Evanston IL
 42.03°N 87.69°W
Last Update:
9:31 am CDT Aug 25, 2026
Forecast Valid:
9am CDT Aug 25, 2026-6pm CDT Aug 31, 2026
 
Forecast Discussion
 
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Additional Resources

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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