Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Heaviest rain to focus north of Southern California for midday, afternoon New Year's Day. Click for details. Chevron right

Lake Forest, IL

12°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Lake Forest

Illinois

12°
No results found.
Try searching for a city, zip code or point of interest.
settings
Lake Forest, 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
Thursday, January 1

Day

1/1
21°Hi
RealFeel® 14°
Very Cold
RealFeel Guide
Very Cold
10° to 24°
Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.
LEARN MORE
RealFeel Shade™ 14°
Very Cold
RealFeel Guide
Very Cold
10° to 24°
Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.
LEARN MORE
Colder with some sun, then turning cloudy; a couple of afternoon flurries

Max UV Index2.0 (Low)

AccuLumen Brightness Index™4 (Dull)

WindWNW 7 mph

Wind Gusts12 mph

Probability of Precipitation55%

Probability of Thunderstorms0%

Precipitation0.00 in

Hours of Precipitation2

Cloud Cover81%

Morning

Afternoon

Night

1/1
15°Lo
RealFeel® 7°
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
Partly cloudy

WindWNW 8 mph

Wind Gusts12 mph

Probability of Precipitation2%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover35%

Evening

Overnight

Sun & Moon

9 hrs 10 mins
Rise 7:20 AM
Set 4:30 PM
Waxing Gibbous
Rise 2:23 PM
Set 6:58 AM

Temperature History

1/1
High
Low
Forecast
21°
15°
Average
33°
20°
Last Year
34°
24°
Record
N/A
-8°
2018

Further Ahead

Hourly

Daily

Monthly

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Travel

New Year’s travel forecast: Wintry Northeast, rain spreads West

1 hour ago

Weather Forecasts

California facing more rain, travel problems starting off 2026

2 hours ago

Winter Weather

Bomb cyclone spawns blizzard, tornadoes from Midwest to Northeast

20 hours ago

Winter Weather

80 inches of snow in Juneau, Alaska smashes record, sinks boats

21 hours ago

Travel

New Year's Forecast: Travel woes for Midwest, Northeast and California

1 day ago

 More Stories

Featured Stories

Kangaroos given water after thousands of acres burn in wildfire

10 hours ago 0:11

Astronomy

Top rocket launches of 2025 you had to see to believe

1 day ago

Astronomy

1st meteor shower of 2026 to peak this weekend

13 hours ago

New Year's celebrations from around the world

21 hours ago 0:35

Astronomy

These are the top 3 astronomy stories of 2025

1 day ago
World North America United States Illinois Lake Forest

Weather Near Lake Forest:

  • 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 RealFeel® and RealFeel Shade™ 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 RealFeel® and RealFeel Shade™ 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

...

...

...