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

Hazardous Weather Conditions

Current conditions at

Chicago / West Chicago, Dupage Airport (KDPA)

Lat: 41.9°NLon: 88.25°WElev: 758ft.

Mostly Cloudy

29°C

84°F

Humidity 49%
Wind Speed S 28 G 46 km/h
Barometer 1009.0 mb (29.82 in)
Dewpoint 17°C (63°F)
Visibility 16 km
Heat Index29°C (85°F)
Last update 17 May 2:52 pm CDT
Extended Forecast for

Crystal Lake IL

  • This Afternoon

    This Afternoon: A 20 percent chance of showers before 4pm. Mostly cloudy, with a high near 29. South southwest wind around 30 km/h, with gusts as high as 60 km/h.

    High: 29 °C

    Slight Chance
    Showers

  • Tonight

    Tonight: A 30 percent chance of showers after 5am. Partly cloudy, with a low around 19. South southwest wind 25 to 30 km/h, with gusts as high as 45 km/h.

    Low: 19 °C

    Partly Cloudy
    then Chance
    Showers

  • Monday

    Monday: A chance of showers and thunderstorms before 7am, then showers likely and possibly a thunderstorm between 7am and noon, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 27. Breezy, with a south southwest wind 30 to 35 km/h, with gusts as high as 45 km/h. Chance of precipitation is 70%. New rainfall amounts between 5 and 7.5 mm possible.

    High: 27 °C

    Showers
    Likely and
    Breezy then
    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 18. South southwest wind 25 to 30 km/h, with gusts as high as 45 km/h. Chance of precipitation is 70%.

    Low: 18 °C

    Chance
    T-storms then
    Showers
    Likely

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers after 4pm. Mostly cloudy, with a high near 26. Breezy, with a south southwest wind 25 to 35 km/h becoming west in the afternoon. Winds could gust as high as 55 km/h. Chance of precipitation is 60%.

    High: 26 °C

    Showers
    Likely and
    Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 8.

    Low: 8 °C

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 16.

    High: 16 °C

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 5.

    Low: 5 °C

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 17.

    High: 17 °C

    Mostly Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers before 4pm. Mostly cloudy, with a high near 29. South southwest wind around 30 km/h, with gusts as high as 60 km/h.
Tonight
A 30 percent chance of showers after 5am. Partly cloudy, with a low around 19. South southwest wind 25 to 30 km/h, with gusts as high as 45 km/h.
Monday
A chance of showers and thunderstorms before 7am, then showers likely and possibly a thunderstorm between 7am and noon, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 27. Breezy, with a south southwest wind 30 to 35 km/h, with gusts as high as 45 km/h. Chance of precipitation is 70%. New rainfall amounts between 5 and 7.5 mm possible.
Monday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 18. South southwest wind 25 to 30 km/h, with gusts as high as 45 km/h. Chance of precipitation is 70%.
Tuesday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers after 4pm. Mostly cloudy, with a high near 26. Breezy, with a south southwest wind 25 to 35 km/h becoming west in the afternoon. Winds could gust as high as 55 km/h. Chance of precipitation is 60%.
Tuesday Night
Partly cloudy, with a low around 8.
Wednesday
Mostly sunny, with a high near 16.
Wednesday Night
Partly cloudy, with a low around 5.
Thursday
Mostly sunny, with a high near 17.
Thursday Night
Mostly cloudy, with a low around 8.
Friday
Partly sunny, with a high near 21.
Friday Night
Mostly cloudy, with a low around 10.
Saturday
Partly sunny, with a high near 23.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Crystal Lake IL
 42.23°N 88.36°W
Last Update:
2:41 pm CDT May 17, 2026
Forecast Valid:
3pm CDT May 17, 2026-6pm CDT May 23, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation