Dangerous Heat and Humidity Over The East

A very hot and humid airmass will persist over much of the east over the next couple of days. Afternoon high temperatures are forecast to reach 95 to 100 degrees with heat index values ranging from 100 to 110 degrees. The dangerous heat wave will impact major I-95 cities from North Carolina to New York. Read More >

Current conditions at

Chicago / Wheeling, Pal-Waukee Airport (KPWK)

Lat: 42.12°NLon: 87.9°WElev: 646ft.

Mostly Cloudy

84°F

29°C

Humidity 49%
Wind Speed E 6 mph
Barometer 30.00 in (1015.2 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 25 Jul 2:52 pm CDT
Extended Forecast for

Crystal Lake IL

  • This
    Afternoon

    This Afternoon: Sunny, with a high near 86. Northwest wind around 10 mph.

    Sunny

    High: 86 °F

  • Tonight

    Tonight: Patchy fog after 4am.  Otherwise, clear, with a low around 64. Northwest wind around 5 mph.

    Clear then
    Patchy Fog

    Low: 64 °F

  • Tuesday

    Tuesday: Patchy fog before 8am.  Otherwise, sunny, with a high near 86. North northwest wind around 5 mph becoming calm.

    Patchy Fog
    then Sunny

    High: 86 °F

  • Tuesday
    Night

    Tuesday Night: Mostly clear, with a low around 67. Calm wind.

    Mostly Clear

    Low: 67 °F

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 86. Calm wind becoming west northwest around 5 mph.

    Slight Chance
    T-storms

    High: 86 °F

  • Wednesday
    Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 68.

    Chance
    T-storms

    Low: 68 °F

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 81.

    Chance
    T-storms

    High: 81 °F

  • Thursday
    Night

    Thursday Night: A chance of showers.  Mostly cloudy, with a low around 65.

    Chance
    Showers

    Low: 65 °F

  • Friday

    Friday: A chance of showers and thunderstorms.  Partly sunny, with a high near 80.

    Chance
    Showers

    High: 80 °F

Detailed Forecast

This Afternoon
Sunny, with a high near 86. Northwest wind around 10 mph.
Tonight
Patchy fog after 4am. Otherwise, clear, with a low around 64. Northwest wind around 5 mph.
Tuesday
Patchy fog before 8am. Otherwise, sunny, with a high near 86. North northwest wind around 5 mph becoming calm.
Tuesday Night
Mostly clear, with a low around 67. Calm wind.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86. Calm wind becoming west northwest around 5 mph.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
Thursday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 81.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 65.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 80.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 81.
Saturday Night
Partly cloudy, with a low around 61.
Sunday
Mostly sunny, with a high near 82.
Click Map For Forecast
Point Forecast:
Crystal Lake IL
 42.23°N 88.33°W
1:25 pm CDT Jul 25, 2016
3pm CDT Jul 25, 2016-6pm CDT Jul 31, 2016
 
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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