Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Tropical rainstorm brings torrential downpours and dangerous flash flooding to Louisiana Chevron right
Flash flood risk to focus on parts of central US. Get the forecast Chevron right

Round Lake Beach, IL

66°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Round Lake Beach

Illinois

66°
No results found.
Try searching for a city, zip code or point of interest.
settings
Round Lake Beach, 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 Hourly

Daily

 Radar MinuteCast Monthly Air Quality Health & Activities

July 19 - September 1

Sat 7/19

83° /68°
99%
Mostly cloudy and humid with a couple of showers and a heavy thunderstorm around into the early afternoon; storms can bring flash flooding and damaging winds

RealFeel®90°

RealFeel Shade™87°

Max UV Index2 (Low)

WindSW 8 mph

Sun 7/20

75° /62°
5%
Less humid; cloudy in the morning followed by clouds giving way to some sun in the afternoon

RealFeel®80°

RealFeel Shade™73°

Max UV Index6 (High)

WindNE 8 mph

Mon 7/21

78° /65°
6%
Sun and areas of high clouds in the morning, then mostly cloudy in the afternoon

RealFeel®84°

RealFeel Shade™77°

Max UV Index8 (Very High)

WindE 9 mph

Tue 7/22

87° /72°
41%
Clouds and sun with a thunderstorm in spots; warmer and humid

RealFeel®95°

RealFeel Shade™88°

Max UV Index10 (Very High)

WindSSW 7 mph

Wed 7/23

90° /74°
80%
Times of sun and clouds with a thunderstorm; very warm and humid

RealFeel®101°

RealFeel Shade™96°

Max UV Index5 (Moderate)

WindSW 9 mph

Thu 7/24

88° /71°
1%
Remaining very warm and humid with plenty of sunshine

RealFeel®96°

RealFeel Shade™91°

Max UV Index9 (Very High)

WindSW 12 mph

Fri 7/25

82° /70°
62%
Considerable cloudiness with a couple of thunderstorms; very humid

RealFeel®94°

RealFeel Shade™93°

Max UV Index2 (Low)

WindN 2 mph

Sat 7/26

85° /69°
71%
Humid with rain and a thunderstorm

RealFeel®93°

RealFeel Shade™92°

Max UV Index2 (Low)

WindSSE 4 mph

Sun 7/27

85° /69°
40%
A thunderstorm in spots in the morning; otherwise, sunshine and some clouds

RealFeel®94°

RealFeel Shade™85°

Max UV Index9 (Very High)

WindNNE 5 mph

Mon 7/28

84° /68°
3%
Partly sunny and humid

RealFeel®95°

RealFeel Shade™87°

Max UV Index6 (High)

WindSSE 4 mph

Tue 7/29

82° /66°
40%
A thunderstorm in spots in the morning; otherwise, variable cloudiness

RealFeel®85°

RealFeel Shade™79°

Max UV Index6 (High)

WindSSW 8 mph

Wed 7/30

81° /65°
66%
Cloudy with a couple of thunderstorms, especially late in the day

RealFeel®81°

RealFeel Shade™80°

Max UV Index2 (Low)

WindNNE 5 mph

Thu 7/31

82° /63°
25%
Mostly cloudy

RealFeel®84°

RealFeel Shade™84°

Max UV Index4 (Moderate)

WindSW 4 mph

Fri 8/1

82° /66°
65%
Humid with variable cloudiness; a couple of afternoon showers and a thunderstorm

RealFeel®89°

RealFeel Shade™89°

Max UV Index4 (Moderate)

WindW 5 mph

Sat 8/2

83° /62°
55%
Cloudy with a touch of rain

RealFeel®80°

RealFeel Shade™80°

Max UV Index2 (Low)

WindNE 13 mph

Sun 8/3

76° /61°
20%
Sunshine and a few clouds

RealFeel®79°

RealFeel Shade™72°

Max UV Index9 (Very High)

WindENE 10 mph

Mon 8/4

75° /60°
10%
Mostly sunny

RealFeel®84°

RealFeel Shade™73°

Max UV Index9 (Very High)

WindENE 5 mph

Tue 8/5

75° /59°
25%
Turning out cloudy

RealFeel®77°

RealFeel Shade™75°

Max UV Index4 (Moderate)

WindE 2 mph

Wed 8/6

76° /61°
25%
Some sun, then increasing clouds

RealFeel®78°

RealFeel Shade™75°

Max UV Index6 (High)

WindS 5 mph

Thu 8/7

77° /66°
70%
Humid with considerable cloudiness; showers in the morning followed by a couple of showers and a thunderstorm in the afternoon

RealFeel®79°

RealFeel Shade™79°

Max UV Index2 (Low)

WindS 8 mph

Fri 8/8

77° /66°
40%
Humid with times of clouds and sun; a thundershower in spots in the afternoon

RealFeel®81°

RealFeel Shade™78°

Max UV Index6 (High)

WindNNE 7 mph

Sat 8/9

78° /65°
55%
Partly sunny with a thundershower in the afternoon

RealFeel®84°

RealFeel Shade™78°

Max UV Index8 (Very High)

WindNNE 6 mph

Sun 8/10

77° /64°
25%
Times of clouds and sun

RealFeel®78°

RealFeel Shade™76°

Max UV Index4 (Moderate)

WindN 4 mph

Mon 8/11

77° /64°
10%
Mostly sunny

RealFeel®86°

RealFeel Shade™77°

Max UV Index8 (Very High)

WindS 5 mph

Tue 8/12

80° /66°
25%
Humid with clouds and sun

RealFeel®82°

RealFeel Shade™82°

Max UV Index5 (Moderate)

WindSSW 8 mph

Wed 8/13

82° /66°
25%
Mostly sunny and humid

RealFeel®88°

RealFeel Shade™85°

Max UV Index8 (Very High)

WindSSW 8 mph

Thu 8/14

83° /67°
59%
A passing morning shower; otherwise, partly sunny and humid

RealFeel®90°

RealFeel Shade™88°

Max UV Index8 (Very High)

WindSSW 12 mph

Fri 8/15

83° /67°
65%
Humid with more clouds than sun; a couple of afternoon showers and a thunderstorm

RealFeel®96°

RealFeel Shade™89°

Max UV Index8 (Very High)

WindW 5 mph

Sat 8/16

82° /66°
5%
Less humid with plenty of sun

RealFeel®90°

RealFeel Shade™82°

Max UV Index8 (Very High)

WindNNE 5 mph

Sun 8/17

81° /66°
5%
Humid with plenty of sun

RealFeel®90°

RealFeel Shade™82°

Max UV Index8 (Very High)

WindSE 6 mph

Mon 8/18

83° /67°
5%
Brilliant sunshine and humid

RealFeel®93°

RealFeel Shade™89°

Max UV Index8 (Very High)

WindS 7 mph

Tue 8/19

84° /68°
5%
Humid with plenty of sunshine

RealFeel®92°

RealFeel Shade™88°

Max UV Index8 (Very High)

WindSSW 9 mph

Wed 8/20

82° /67°
65%
Cloudy and humid; a couple of afternoon showers and a thunderstorm

RealFeel®88°

RealFeel Shade™88°

Max UV Index2 (Low)

WindSW 7 mph

Thu 8/21

83° /67°
38%
Uncomfortably humid with sun followed by increasing clouds; a thunderstorm in spots in the afternoon

RealFeel®98°

RealFeel Shade™94°

Max UV Index7 (High)

WindSSW 4 mph

Fri 8/22

84° /66°
55%
Partly sunny and uncomfortably humid; a thunderstorm in the afternoon

RealFeel®100°

RealFeel Shade™96°

Max UV Index7 (High)

WindSE 2 mph

Sat 8/23

84° /67°
25%
Cloudy and uncomfortably humid

RealFeel®93°

RealFeel Shade™93°

Max UV Index2 (Low)

WindS 6 mph

Sun 8/24

83° /68°
20%
Humid with plenty of sunshine

RealFeel®89°

RealFeel Shade™85°

Max UV Index7 (High)

WindSSW 10 mph

Mon 8/25

85° /67°
20%
Uncomfortably humid with sun and some clouds

RealFeel®97°

RealFeel Shade™90°

Max UV Index7 (High)

WindENE 5 mph

Tue 8/26

84° /67°
25%
Partly sunny and uncomfortably humid

RealFeel®99°

RealFeel Shade™94°

Max UV Index7 (High)

WindENE 5 mph

Wed 8/27

84° /66°
39%
Uncomfortably humid with intervals of clouds and sunshine; a thunderstorm in spots in the afternoon

RealFeel®97°

RealFeel Shade™93°

Max UV Index4 (Moderate)

WindENE 2 mph

Thu 8/28

82° /66°
65%
Turning cloudy and uncomfortably humid; a couple of showers and a thunderstorm in the afternoon

RealFeel®97°

RealFeel Shade™88°

Max UV Index7 (High)

WindNNE 4 mph

Fri 8/29

74° /56°
56%
Mostly cloudy with a little rain in the afternoon

RealFeel®75°

RealFeel Shade™70°

Max UV Index6 (High)

WindENE 10 mph

Sat 8/30

73° /55°
59%
Periods of rain

RealFeel®69°

RealFeel Shade™69°

Max UV Index2 (Low)

WindENE 10 mph

Sun 8/31

73° /55°
25%
Low clouds

RealFeel®71°

RealFeel Shade™71°

Max UV Index2 (Low)

WindNE 9 mph

Mon 9/1

75° /54°
1%
Mostly sunny

RealFeel®76°

RealFeel Shade™72°

Max UV Index6 (High)

WindNE 8 mph

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Severe Weather

When water hits like a tornado: The violent force of flash flooding

1 day ago

Weather Forecasts

Flash flood risk to focus on parts of central US into next week

10 hours ago

Weather News

Lightning strike scorches Florida golf green

10 hours ago

Weather Forecasts

When will the Northeast get relief from the heat and humidity?

10 hours ago

Weather News

Why the search for the missing in Texas may take months

11 hours ago

 More Stories

Featured Stories

Recreation

Felix Baumgartner, known for jump from stratosphere, dies in crash

14 hours ago

Weather News

Curious Colorado bear rescued from storm drain

16 hours ago

Weather News

Dinosaur fossil found underneath a Denver museum’s parking lot

1 day ago

Weather News

Dolphin rescued from shallow lagoon in South Carolina

7 hours ago

Weather News

What happens when an octopus engages with art?

7 hours ago
World North America United States Illinois Round Lake Beach

Weather Near Round Lake Beach:

  • 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
© 2025 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

...

...

...