Hourly Weather Forecast - Crystal Lake, IL

12 AM
40°F
10%
9mph
NNE
Partly Cloudy
Humidity
69%
Feels like
34°F
Dew Point
31°F
1 AM
38°F
10%
10mph
NE
Partly Cloudy
Humidity
68%
Feels like
32°F
Dew Point
29°F
2 AM
37°F
10%
10mph
NE
Partly Cloudy
Humidity
62%
Feels like
30°F
Dew Point
25°F

Today's High Temperature Outlook

Early Spring Heat Wave Zaps Southwest

Much of the Southwest will observe record-breaking heat through the weekend, with high temperatures reminiscent of mid-summer!

Weekend Weather Outlook

Weekend Weather Outlook

Weekly Drought Map for March 19, 2026

Active Weather, Drought Improvements for Eastern Half; Drying Persists Elsewhere

(Image provided by Pixabay.com)

Lightning Safety

A tree knocked over after a storm produced high winds. (provided by PublicDomainPictures via Pixabay.com)

Strong Winds in the Springtime

Story image: WeatherBug user Pat S. captures a plant blooming in Columbia, Md., on February 24, 2017.

When Does Spring Begin?

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Today's National Outlook

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Allergy Forecast

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