Severe Thunderstorms and Heavy Rainfall for the Southwest; Heat Spreads Across the Center of the Nation

Moisture will continue to move into areas of the West. This will increase showers and thunderstorms coverage and intensity, with the risk of flash flooding and damaging wind gusts. Meanwhile, heat across the Southwest will expand into the center of the nation this weekend into early next week. Trends favor this heat will spread across the Ohio Valley, mid-Atlantic next week. Read More >

Hazardous Weather Conditions

Current conditions at

Chicago / Wheeling, Pal-Waukee Airport (KPWK)

Lat: 42.12°NLon: 87.9°WElev: 646ft.

Thunderstorm in Vicinity Light Rain

73°F

23°C

Humidity 69%
Wind Speed SW 12 G 18 mph
Barometer 29.99 in (1015.2 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 30 Aug 5:52 am CDT
Extended Forecast for

Crystal Lake IL

  • Today

    Today: A 50 percent chance of showers and thunderstorms, mainly after 2pm.  Mostly cloudy, with a high near 83. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 83 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers and thunderstorms after 4am.  Mostly cloudy, with a low around 70. South wind around 10 mph, with gusts as high as 15 mph.  Chance of precipitation is 20%.

    Low: 70 °F

    Slight Chance
    T-storms

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms before 7am.  Partly sunny, with a high near 88. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 88 °F

    Chance
    Showers then
    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 72. Southwest wind around 5 mph, with gusts as high as 10 mph.

    Low: 72 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers before 1pm.  Mostly sunny, with a high near 90. Southwest wind 5 to 10 mph.

    High: 90 °F

    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 73.

    Low: 73 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers after 1am.  Partly cloudy, with a low around 70.

    Low: 70 °F

    Partly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms before 1pm.  Mostly sunny, with a high near 86.

    High: 86 °F

    Chance
    T-storms

Detailed Forecast

Today
A 50 percent chance of showers and thunderstorms, mainly after 2pm. Mostly cloudy, with a high near 83. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tonight
A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 70. South wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 20%.
Monday
A 30 percent chance of showers and thunderstorms before 7am. Partly sunny, with a high near 88. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Monday Night
Mostly cloudy, with a low around 72. Southwest wind around 5 mph, with gusts as high as 10 mph.
Tuesday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 90. Southwest wind 5 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 73.
Wednesday
Mostly sunny, with a high near 91.
Wednesday Night
A chance of showers after 1am. Partly cloudy, with a low around 70.
Thursday
A chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 86.
Thursday Night
A chance of showers after 1am. Partly cloudy, with a low around 68.
Friday
A chance of showers. Mostly sunny, with a high near 84.
Friday Night
Partly cloudy, with a low around 67.
Saturday
A chance of showers. Mostly sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
Crystal Lake IL
 42.25°N 88.3°W
4:25 am CDT Aug 30, 2026
6am CDT Aug 30, 2026-6pm CDT Sep 5, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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