Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
A tropical rainstorm is forecast to rapidly strengthen to a major Pacific hurricane. Click for details. Chevron right
Weekend downpours to soak Midwest, part of Northeast. Click for the forecast. Chevron right

Round Lake, IL

63°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Round Lake

Illinois

63°
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
Round 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
Sunday, September 20

Day

9/20
65°Hi
RealFeel® 62°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
RealFeel Shade™ 61°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
Rain; watch for lingering flooding
alerts

Beach Hazards Statement

7:00 AM Sunday - 7:00 PM Tuesday

Max UV Index1.0 (Low)

AccuLumen Brightness Index™1 (Dark)

WindNE 12 mph

Wind Gusts28 mph

Probability of Precipitation100%

Probability of Thunderstorms24%

Precipitation0.49 in

Rain Amount0.49 in

Total Hours of Precipitation8

Total Hours of Rain8

Cloud Cover100%

Morning

Afternoon

Night

9/20
59°Lo
RealFeel® 55°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
Cloudy
alerts

Beach Hazards Statement

7:00 AM Sunday - 7:00 PM Tuesday

WindNE 9 mph

Wind Gusts27 mph

Probability of Precipitation25%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover96%

Evening

Overnight

Sun & Moon

12 hrs 16 mins
Rise 6:37 AM
Set 6:53 PM
Waxing Gibbous
Rise 4:04 PM
Set 1:01 AM

Temperature History

9/20
High
Low
Forecast
65°
59°
Average
73°
52°
Last Year
80°
65°

Further Ahead

Hourly

10-Day

Monthly

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Weather Forecasts

Downpours, flood risk to extend into another week across Midwest, East

2 hours ago

Hurricane

Tropical Storm Fay becomes Atlantic's sixth named storm

2 hours ago

Recreation

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

1 day ago

Hurricane

Pacific tropical rainstorm to rapidy strengthen and threaten Mexico

3 hours ago

Weather Forecasts

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

7 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 Round Lake

Weather Near Round 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

...

...

...