Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Newsletters
  • Advertising
  • Superior Accuracy™
Dangerous heat wave to impact 170 million people in Midwest and Northeast. Details here Chevron right

Saint Charles, IL

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

Saint Charles

Illinois

66°
No results found.
Try searching for a city, zip code or point of interest.
settings
Saint Charles, 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

Newsletters

Advertising

Superior Accuracy™

Video

Winter Center

Today Hourly

Daily

Radar MinuteCast Monthly Air Quality Health & Activities
Heat Advisory

June 20 - August 3

Fri 6/20

85° /71°
80%
Times of clouds and sun, breezy and humid with a couple of brief showers, mainly midday

RealFeel®84°

RealFeel Shade™82°

Max UV Index7 (High)

WindSSW 16 mph

Sat 6/21

96° /73°
3%
Mostly sunny; windy, warmer and humid; start of an extended heat wave; stay hydrated
alerts

Heat Advisory

10:00 AM Saturday - 12:00 AM Tuesday

RealFeel®101°

RealFeel Shade™98°

Max UV Index11 (Extreme)

WindSSW 20 mph

Sun 6/22

96° /71°
4%
Windy, hot and humid with sunshine mixing with some clouds; stay hydrated when outside in the heat
alerts

Heat Advisory

10:00 AM Saturday - 12:00 AM Tuesday

RealFeel®101°

RealFeel Shade™97°

Max UV Index11 (Extreme)

WindSSW 16 mph

Mon 6/23

97° /72°
13%
Windy and very hot with blazing sunshine; stay hydrated when outside in the heat
alerts

Heat Advisory

10:00 AM Saturday - 12:00 AM Tuesday

RealFeel®98°

RealFeel Shade™94°

Max UV Index11 (Extreme)

WindSW 15 mph

Tue 6/24

91° /69°
25%
Sun and areas of high clouds and hot; caution advised if doing strenuous activities outside

RealFeel®98°

RealFeel Shade™93°

Max UV Index6 (High)

WindSW 8 mph

Wed 6/25

91° /71°
88%
Partial sunshine with a couple of showers and a thunderstorm; hot and humid

RealFeel®101°

RealFeel Shade™95°

Max UV Index11 (Extreme)

WindSW 8 mph

Thu 6/26

90° /69°
25%
Hot and humid with sunshine and a few clouds

RealFeel®96°

RealFeel Shade™90°

Max UV Index11 (Extreme)

WindSW 13 mph

Fri 6/27

87° /68°
63%
More clouds than sun with a couple of thunderstorms in the afternoon

RealFeel®86°

RealFeel Shade™84°

Max UV Index5 (Moderate)

WindWSW 10 mph

Sat 6/28

84° /65°
65%
Humid; a couple of showers in the morning, then times of clouds and sun in the afternoon

RealFeel®92°

RealFeel Shade™89°

Max UV Index6 (High)

WindW 6 mph

Sun 6/29

85° /66°
0%
Humid with times of clouds and sun

RealFeel®95°

RealFeel Shade™92°

Max UV Index10 (Very High)

WindWNW 1 mph

Mon 6/30

85° /63°
61%
Periods of rain

RealFeel®85°

RealFeel Shade™83°

Max UV Index3 (Moderate)

WindW 6 mph

Tue 7/1

83° /65°
1%
Mostly sunny and less humid

RealFeel®87°

RealFeel Shade™80°

Max UV Index10 (Very High)

WindNNW 8 mph

Wed 7/2

84° /65°
40%
A morning shower in the area; otherwise, mostly sunny

RealFeel®88°

RealFeel Shade™81°

Max UV Index10 (Very High)

WindENE 8 mph

Thu 7/3

83° /63°
25%
Mostly cloudy

RealFeel®83°

RealFeel Shade™81°

Max UV Index4 (Moderate)

WindNE 4 mph

Fri 7/4

80° /65°
10%
Mostly sunny and less humid

RealFeel®87°

RealFeel Shade™80°

Max UV Index10 (Very High)

WindENE 4 mph

Sat 7/5

81° /66°
25%
Sunny and humid

RealFeel®89°

RealFeel Shade™84°

Max UV Index10 (Very High)

WindSW 4 mph

Sun 7/6

84° /67°
65%
Rather cloudy and humid; a couple of showers and a thunderstorm in the afternoon

RealFeel®91°

RealFeel Shade™91°

Max UV Index4 (Moderate)

WindSSW 2 mph

Mon 7/7

83° /67°
58%
Considerable cloudiness with a couple of thunderstorms; humid

RealFeel®90°

RealFeel Shade™90°

Max UV Index3 (Moderate)

WindW 4 mph

Tue 7/8

83° /66°
55%
A brief thunderstorm in the morning; otherwise, partly sunny and humid

RealFeel®88°

RealFeel Shade™81°

Max UV Index10 (Very High)

WindWNW 12 mph

Wed 7/9

79° /62°
20%
Partly sunny and less humid

RealFeel®83°

RealFeel Shade™76°

Max UV Index10 (Very High)

WindWNW 9 mph

Thu 7/10

79° /62°
25%
Brilliant sunshine

RealFeel®84°

RealFeel Shade™77°

Max UV Index10 (Very High)

WindW 7 mph

Fri 7/11

80° /63°
56%
A passing shower in the morning; otherwise, times of clouds and sun

RealFeel®85°

RealFeel Shade™79°

Max UV Index9 (Very High)

WindS 4 mph

Sat 7/12

80° /65°
63%
Mostly cloudy and humid with a couple of showers and a thunderstorm

RealFeel®84°

RealFeel Shade™82°

Max UV Index2 (Low)

WindSSW 9 mph

Sun 7/13

81° /60°
10%
Mostly sunny and less humid

RealFeel®88°

RealFeel Shade™79°

Max UV Index10 (Very High)

WindW 6 mph

Mon 7/14

79° /60°
20%
Increasing clouds

RealFeel®85°

RealFeel Shade™77°

Max UV Index10 (Very High)

WindESE 5 mph

Tue 7/15

79° /65°
70%
Cloudy with afternoon thunderstorms

RealFeel®81°

RealFeel Shade™81°

Max UV Index2 (Low)

WindSSE 10 mph

Wed 7/16

80° /67°
25%
Humid with intervals of clouds and sunshine

RealFeel®85°

RealFeel Shade™82°

Max UV Index3 (Moderate)

WindW 7 mph

Thu 7/17

81° /66°
10%
Mostly sunny and humid

RealFeel®91°

RealFeel Shade™85°

Max UV Index10 (Very High)

WindSW 4 mph

Fri 7/18

83° /68°
65%
Humid with more clouds than sun; an afternoon thunderstorm or two

RealFeel®89°

RealFeel Shade™87°

Max UV Index5 (Moderate)

WindS 9 mph

Sat 7/19

84° /67°
65%
Cloudy and uncomfortably humid; a couple of afternoon showers and a thunderstorm

RealFeel®92°

RealFeel Shade™92°

Max UV Index3 (Moderate)

WindSSW 10 mph

Sun 7/20

84° /66°
20%
Mostly sunny and humid

RealFeel®91°

RealFeel Shade™85°

Max UV Index10 (Very High)

WindNNW 7 mph

Mon 7/21

80° /64°
10%
Mostly sunny and less humid

RealFeel®87°

RealFeel Shade™80°

Max UV Index10 (Very High)

WindENE 5 mph

Tue 7/22

80° /67°
60%
A couple of showers in the morning; otherwise, mostly cloudy and humid

RealFeel®88°

RealFeel Shade™87°

Max UV Index3 (Moderate)

WindSSE 6 mph

Wed 7/23

85° /68°
25%
Very humid with clouds and sunshine

RealFeel®94°

RealFeel Shade™92°

Max UV Index5 (Moderate)

WindS 8 mph

Thu 7/24

86° /64°
60%
A couple of morning showers; otherwise, mostly cloudy and humid

RealFeel®91°

RealFeel Shade™89°

Max UV Index3 (Moderate)

WindN 7 mph

Fri 7/25

79° /63°
55%
Mostly cloudy and not as warm; a little rain in the morning followed by a thundershower in parts of the area in the afternoon

RealFeel®82°

RealFeel Shade™81°

Max UV Index3 (Moderate)

WindNNE 5 mph

Sat 7/26

80° /66°
25%
Humid with periods of clouds and sunshine

RealFeel®85°

RealFeel Shade™85°

Max UV Index5 (Moderate)

WindNNE 2 mph

Sun 7/27

83° /67°
25%
Humid with intervals of clouds and sunshine

RealFeel®90°

RealFeel Shade™88°

Max UV Index7 (High)

WindSSW 4 mph

Mon 7/28

86° /68°
25%
Humid with intervals of clouds and sunshine

RealFeel®92°

RealFeel Shade™90°

Max UV Index5 (Moderate)

WindS 7 mph

Tue 7/29

86° /68°
20%
Mostly sunny and very humid

RealFeel®96°

RealFeel Shade™94°

Max UV Index9 (Very High)

WindSSW 6 mph

Wed 7/30

85° /67°
39%
Mostly sunny and uncomfortably humid; a thunderstorm in spots in the afternoon

RealFeel®96°

RealFeel Shade™92°

Max UV Index9 (Very High)

WindSSW 7 mph

Thu 7/31

85° /67°
10%
Mostly sunny and uncomfortably humid

RealFeel®93°

RealFeel Shade™90°

Max UV Index9 (Very High)

WindSW 8 mph

Fri 8/1

79° /60°
0%
Mostly sunny

RealFeel®83°

RealFeel Shade™77°

Max UV Index9 (Very High)

WindNE 7 mph

Sat 8/2

79° /64°
0%
Partly sunny

RealFeel®84°

RealFeel Shade™78°

Max UV Index9 (Very High)

WindSE 5 mph

Sun 8/3

81° /61°
57%
A little morning rain; otherwise, cloudy

RealFeel®82°

RealFeel Shade™80°

Max UV Index2 (Low)

WindS 8 mph

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Weather Forecasts

Heat wave to push temps near 100 F across central, eastern US

1 hour ago

Weather News

What is a heat dome and how can it create 'ring of fire' storms?

1 day ago

Hurricane

Erick to continue as tropical rainstorm following major hurricane

10 hours ago

Health

‘Nimbus’ COVID-19 variant arrives in U.S. after China surge

26 minutes ago

Weather Forecasts

Major cooldown eyes West as fire weather increases for Great Basin

1 hour ago

More Stories

Featured Stories

Severe Weather

Rare high-elevation tornado confirmed at Pikes Peak

1 day ago

Astronomy

Summer solstice: Everything to know about the year's longest day

19 hours ago

Astronomy

Meteorological summer vs. astronomical summer explained

3 days ago

Weather News

5 times the American flag survived extreme weather

3 days ago

Weather News

First methane-powered sea spiders found crawling on the ocean floor

1 day ago

World North America United States Illinois Saint Charles

Weather Near Saint Charles:

  • 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

...

...

...