Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
A nor'easter is brewing for the East Coast. Click for details. Chevron right
Tropical Storm Polo is forecast to rapidly strengthen to a major Pacific hurricane. Click for details. Chevron right

Crystal Lake, IL

59°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Crystal Lake

Illinois

59°
No results found.
Try searching for a city, zip code or point of interest.
Get Premium+
Create Your Account Unlock extended daily and hourly forecasts — all with your free account.
Let's Go Chevron right
Have an account already? Log In
settings
Help
Crystal Lake, IL Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps
News

News & Features

Astronomy

Business

Climate

Health

Recreation

Sports

Travel
For Business

Warnings

Data Suite

Forensics

Advertising

Superior Accuracy™

Video

Winter Center

Today

 Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

Today's Weather

Mon, Sep 21

Cool; breezy with areas of drizzle in the morning followed by a couple of showers in the afternoon Hi: 63°

Tonight: Partly to mostly cloudy with a shower in spots Lo: 53°

Current Weather

1:41 AM

59°F
RealFeel® 57°
Mostly cloudy More Details
Wind ENE 5 mph
Wind Gusts 12 mph
Air Quality Excellent

Crystal Lake Weather Radar

Crystal Lake Weather Radar
Static Radar Temporarily Unavailable
Thank you for your patience as we work to get everything up and running again.
Refresh Page
Clouds
Temperature

Hourly Weather

2 AM 60°
rain drop 40%
3 AM 60°
rain drop 37%
4 AM 59°
rain drop 34%
5 AM 58°
rain drop 34%
6 AM 59°
rain drop 37%
7 AM 59°
rain drop 40%
8 AM 59°
rain drop 42%
9 AM 60°
rain drop 38%
10 AM 60°
rain drop 38%
11 AM 61°
rain drop 42%
12 PM 61°
rain drop 38%
1 PM 61°
rain drop 38%

10-Day Weather Forecast

Today

9/21

63° 53°

A couple of afternoon showers

Night: Some clouds with a shower
85%

Tue

9/22

62° 50°

Breezy in the morning

Partly cloudy
12%

Wed

9/23

64° 50°

Cloudy

Clear
5%

Thu

9/24

66° 53°

Times of sun and clouds

Becoming cloudy
1%

Fri

9/25

69° 52°

Sun through high clouds

Partly cloudy
0%

Sat

9/26

71° 53°

A couple of afternoon showers

A couple of evening showers
59%

Sun

9/27

70° 53°

Plenty of sun

Clear
0%

Mon

9/28

72° 52°

Sunny

Clear
0%

Tue

9/29

70° 53°

Plenty of sun

Clear
0%

Wed

9/30

70° 51°

Plenty of sunshine

Clear
0%

Sun & Moon

12 hrs 14 mins
Rise 6:39 AM
Set 6:53 PM
Waxing Gibbous
Rise 4:37 PM
Set 2:08 AM

Air Quality

See More
Air Quality Excellent

The air quality is ideal for most individuals; enjoy your normal outdoor activities.

Allergy Outlook

See All
Tree Pollen Low Data is not supported in this location Ragweed Pollen Low Data is not supported in this location Mold Low Data is not supported in this location Grass Pollen Low Data is not supported in this location Dust & Dander Low Data is not supported in this location

Top Stories

Weather Forecasts

Upcoming nor'easter threatens flooding, gusty winds in mid-Atlantic

11 hours ago

Hurricane

Tropical Storm Fay becomes Atlantic's sixth named storm

3 hours ago

Recreation

Monarch butterflies are heading south. This map shows when be near you

2 days ago

Hurricane

Polo to rapidly strengthen and threaten Mexico's west coast

3 hours ago

Weather Forecasts

American monsoon surge to bring flood, wildfire risks to western US

10 hours ago

 More Stories

Featured Stories

Sports

New NASCAR tire rule puts rain strategy in teams’ hands

2 days ago

Severe Weather

Deadly monsoon flooding strikes Arizona

3 days ago

Recreation

Man and his dog found alive after 7 days in remote Wyoming wilderness

4 days ago

Climate

El Niño is coming for California's beachfront homes and highways

3 days ago

Travel

7 places on Earth that look AI-generated but are real

4 days ago
World North America United States Illinois Crystal Lake

Weather Near Crystal Lake:

  • Chicago, IL
  • Joliet, IL
  • Naperville, IL
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
© 2026 AccuWeather, Inc. "AccuWeather" and sun design are registered trademarks of AccuWeather, Inc. All Rights Reserved.
Terms of Use | Privacy Policy | Cookie Policy | About Your Privacy Do Not Sell or Share My Personal Information | Data Sources

...

...

...