Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

Current conditions at

Pontiac Municipal Airport (KPNT)

Lat: 40.92°NLon: 88.62°WElev: 650ft.

Fair

63°F

17°C

Humidity 100%
Wind Speed NW 3 mph
Barometer 30.00 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 27 Aug 6:55 am CDT
Extended Forecast for

Cornell IL

  • Today

    Today: Sunny, with a high near 82. Calm wind becoming north northwest around 5 mph in the afternoon. Winds could gust as high as 10 mph.

    High: 82 °F

    Sunny

  • Tonight

    Tonight: Patchy fog after 2am.  Otherwise, mostly clear, with a low around 60. North northwest wind around 5 mph becoming calm.

    Low: 60 °F

    Mostly Clear
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 8am.  Otherwise, sunny, with a high near 82. Calm wind.

    High: 82 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 60. Calm wind.

    Low: 60 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 82. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 15 mph.

    High: 82 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 67.

    Low: 67 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 72.

    Low: 72 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 82. Calm wind becoming north northwest around 5 mph in the afternoon. Winds could gust as high as 10 mph.
Tonight
Patchy fog after 2am. Otherwise, mostly clear, with a low around 60. North northwest wind around 5 mph becoming calm.
Friday
Patchy fog before 8am. Otherwise, sunny, with a high near 82. Calm wind.
Friday Night
Partly cloudy, with a low around 60. Calm wind.
Saturday
Mostly sunny, with a high near 82. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 15 mph.
Saturday Night
Mostly cloudy, with a low around 67.
Sunday
Mostly sunny, with a high near 88.
Sunday Night
Partly cloudy, with a low around 72.
Monday
Mostly sunny, with a high near 90.
Monday Night
A chance of showers after 1am. Partly cloudy, with a low around 73.
Tuesday
Mostly sunny, with a high near 90.
Tuesday Night
A chance of showers. Partly cloudy, with a low around 72.
Wednesday
Mostly sunny, with a high near 90.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Cornell IL
 41°N 88.73°W
3:11 am CDT Aug 27, 2026
7am CDT Aug 27, 2026-6pm CDT Sep 2, 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