Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
A major nor'easter and blizzard threatens to shut down travel. See the snow forecast. Chevron right
California expecting new snowstorm after measuring 100+ inches. Get the forecast. Chevron right

McHenry, IL

27°F
Location Chevron down
Location News Videos
Use Current Location
Recent

McHenry

Illinois

27°
No results found.
Try searching for a city, zip code or point of interest.
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
McHenry, IL Weather
Today WinterCast Local {stormName} Tracker Hourly Daily 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 WinterCast Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities
Saturday, February 21

Current Weather

5:32 PM

27°F
Cloudy
RealFeel® 25°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
RealFeel Shade™ 25°
Cold
RealFeel Guide
Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
RealFeel®
25°
RealFeel Shade™
25°
Max UV Index
0.2 (Low)
Wind
NW 5 mph
Wind Gusts
9 mph
Humidity
70%
Indoor Humidity
29% (Very Dry)
Dew Point
18° F
Pressure
↑ 30.16 in
Cloud Cover
92%
Visibility
12 mi
Cloud Ceiling
26000 ft

Day

2/21
28°Hi
RealFeel® 25°
Very Cold
RealFeel Guide
Very Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
RealFeel Shade™ 25°
Very Cold
RealFeel Guide
Very Cold
25° to 39°
Coats and hats are appropriate, consider gloves and a scarf.
LEARN MORE
Mostly cloudy; breezy this afternoon

Max UV Index1.0 (Low)

AccuLumen Brightness Index™1 (Dark)

WindWNW 9 mph

Wind Gusts23 mph

Probability of Precipitation1%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover92%

Morning

Afternoon

Night

2/21
20°Lo
RealFeel® 2°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
Snow and flurries at times beginning late evening, accumulating a coating to an inch; breezy late

WindNW 13 mph

Wind Gusts21 mph

Probability of Precipitation88%

Probability of Thunderstorms0%

Precipitation0.01 in

Snow0.30 in

Hours of Precipitation5

Cloud Cover99%

Evening

Overnight

Sun & Moon

10 hrs 52 mins
Rise 6:41 AM
Set 5:33 PM
Waxing Crescent
Rise 8:24 AM
Set 10:44 PM

Temperature History

2/21
High
Low
Forecast
28°
20°
Average
33°
16°
Last Year
25°
14°

Further Ahead

Hourly

Daily

Monthly

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Winter Weather

Major nor'easter, blizzard to rage from NYC to Boston and Delaware

2 hours ago

Severe Weather

Likely tornadoes destroy homes, wrap mobile homes around trees

1 day ago

Winter Weather

Atmospheric river to blast West Coast with more flooding, heavy snow

6 hours ago

Weather Forecasts

From 80s F to freezing: Florida faces cold blast, growing fire danger

3 hours ago

Weather Forecasts

El Nino is brewing: Here’s what it means for US weather in 2026

1 day ago

 More Stories

Featured Stories

Winter Weather

Search teams working to recover bodies of skiers killed in avalanche

2 days ago

Weather Forecasts

Wildfire season to ramp up early as drought covers over 40% of the US

3 days ago

Weather News

Bald eagle rescued from floating ice on New York's Hudson River

2 days ago

Climate

75% of global coffee supply faces rising extreme heat, analysis says

2 days ago

Travel

The island with an air-conditioned ‘forest’ to cope with summers

2 days ago
World North America United States Illinois McHenry

Weather Near McHenry:

  • 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

...

...

...