Severe Thunderstorms in the Northern Plains and Upper Midwest; Critical Fire Weather in the West; Dangerous Heat in the Central and Eastern U.S.

Severe thunderstorms are likely today across the northern Plains and into the upper Mississippi Valley. Gusty winds and dry conditions will result in widespread critical fire weather through Saturday across parts of the Four Corners region and the Great Basin. A significant and dangerous heat wave will expand from the Central U.S. into the Eastern U.S this weekend through much of next week. Read More >

Current conditions at

Aurora Municipal Airport (KARR)

Lat: 41.77°NLon: 88.48°WElev: 696ft.

Fair

82°F

28°C

Humidity 74%
Wind Speed SW 20 G 30 mph
Barometer 29.87 in (1010.9 mb)
Dewpoint 73°F (23°C)
Visibility 7.00 mi
Heat Index87°F (31°C)
Last update 21 Jun 7:52 am CDT
Extended Forecast for

Somonauk IL

Heat Advisory June 21, 10:00am until June 24, 12:00am
Click here for hazard details and duration
Heat Advisory
  • Today

    Today: Sunny, with a high near 93. Heat index values as high as 103. Breezy, with a south southwest wind 15 to 25 mph, with gusts as high as 40 mph.

    High: 93 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Clear, with a low around 76. Breezy, with a south southwest wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 35 mph.

    Low: 76 °F

    Clear and
    Breezy then
    Clear

  • Sunday

    Sunday: Sunny, with a high near 94. Heat index values as high as 103. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 94 °F

    Sunny then
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Clear, with a low around 75. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 75 °F

    Clear

  • Monday

    Monday: Sunny and hot, with a high near 97. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 97 °F

    Hot

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am.  Partly cloudy, with a low around 74.

    Low: 74 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 93.

    High: 93 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms.  Mostly sunny, with a high near 91.

    High: 91 °F

    Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 93. Heat index values as high as 103. Breezy, with a south southwest wind 15 to 25 mph, with gusts as high as 40 mph.
Tonight
Clear, with a low around 76. Breezy, with a south southwest wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 35 mph.
Sunday
Sunny, with a high near 94. Heat index values as high as 103. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Clear, with a low around 75. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Monday
Sunny and hot, with a high near 97. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 74.
Tuesday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Somonauk IL
 41.61°N 88.69°W
3:56 am CDT Jun 21, 2025
7am CDT Jun 21, 2025-6pm CDT Jun 27, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database