Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Next week to bring another uptick in temps, humidity in the Northeast. Get the forecast. Chevron right

Saint Charles, IL

71°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Saint Charles

Illinois

71°
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
Saint Charles, 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

View hourly forecasts 10-days ahead

Activate Your Premium+ Subscription

Chevron right

2 AM

67°
RealFeel® 65°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 20%
Chevron down
Mostly cloudy

WindENE 6 mph

Air QualityFair

Wind Gusts7 mph

Humidity80%

Indoor Humidity77% (Slightly Humid)

Dew Point61° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover81%

Visibility10 mi

Cloud Ceiling28200 ft

3 AM

66°
RealFeel® 64°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 20%
Chevron down
Mostly cloudy

WindENE 6 mph

Air QualityPoor

Wind Gusts7 mph

Humidity85%

Indoor Humidity79% (Slightly Humid)

Dew Point61° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover87%

Visibility10 mi

Cloud Ceiling26400 ft

4 AM

66°
RealFeel® 64°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 20%
Chevron down
Cloudy

WindENE 6 mph

Air QualityPoor

Wind Gusts7 mph

Humidity85%

Indoor Humidity78% (Slightly Humid)

Dew Point61° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling24600 ft

5 AM

63°
RealFeel® 63°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 20%
Chevron down
Cloudy

WindENE 6 mph

Air QualityPoor

Wind Gusts7 mph

Humidity91%

Indoor Humidity78% (Slightly Humid)

Dew Point61° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover93%

Visibility10 mi

Cloud Ceiling18800 ft

6 AM

65°
RealFeel® 63°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 20%
Chevron down
Cloudy

RealFeel Shade™63°

WindENE 7 mph

Air QualityPoor

Max UV Index0.1 (Low)

Wind Gusts7 mph

Humidity86%

Indoor Humidity78% (Slightly Humid)

Dew Point61° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover97%

Visibility10 mi

Cloud Ceiling12900 ft

7 AM

67°
RealFeel® 65°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 16%
Chevron down
Cloudy

RealFeel Shade™65°

WindENE 7 mph

Air QualityPoor

Max UV Index0.4 (Low)

Wind Gusts7 mph

Humidity84%

Indoor Humidity80% (Slightly Humid)

Dew Point62° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover99%

Visibility10 mi

Cloud Ceiling7100 ft

8 AM

69°
RealFeel® 68°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 7%
Chevron down
Cloudy

RealFeel Shade™68°

WindENE 7 mph

Air QualityPoor

Max UV Index0.7 (Low)

Wind Gusts8 mph

Humidity77%

Indoor Humidity77% (Slightly Humid)

Dew Point62° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover100%

Visibility10 mi

Cloud Ceiling12900 ft

9 AM

72°
RealFeel® 72°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 7%
Chevron down
Cloudy

RealFeel Shade™70°

WindENE 8 mph

Air QualityFair

Max UV Index1.4 (Low)

Wind Gusts8 mph

Humidity72%

Indoor Humidity72% (Humid)

Dew Point63° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover98%

Visibility10 mi

Cloud Ceiling18800 ft

10 AM

75°
RealFeel® 76°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 7%
Chevron down
Cloudy

RealFeel Shade™73°

WindE 8 mph

Air QualityFair

Max UV Index2.4 (Low)

Wind Gusts9 mph

Humidity67%

Indoor Humidity67% (Humid)

Dew Point64° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover93%

Visibility10 mi

Cloud Ceiling24600 ft

11 AM

78°
RealFeel® 81°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 7%
Chevron down
Mostly cloudy

RealFeel Shade™76°

WindE 9 mph

Air QualityFair

Max UV Index4.2 (Moderate)

Wind Gusts10 mph

Humidity62%

Indoor Humidity62% (Humid)

Dew Point64° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover86%

Visibility10 mi

Cloud Ceiling24600 ft

12 PM

80°
RealFeel® 85°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 7%
Chevron down
Mostly cloudy

RealFeel Shade™78°

Heat Index80°

WindE 9 mph

Air QualityFair

Max UV Index6.4 (High)

Wind Gusts12 mph

Humidity59%

Indoor Humidity59% (Humid)

Dew Point64° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover78%

Visibility10 mi

Cloud Ceiling24600 ft

1 PM

81°
RealFeel® 87°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 6%
Chevron down
Mostly cloudy

RealFeel Shade™79°

Heat Index83°

WindE 10 mph

Air QualityFair

Max UV Index7.4 (High)

Wind Gusts13 mph

Humidity56%

Indoor Humidity56% (Humid)

Dew Point64° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover75%

Visibility10 mi

Cloud Ceiling24600 ft

2 PM

82°
RealFeel® 87°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 5%
Chevron down
Mostly cloudy

RealFeel Shade™80°

Heat Index84°

WindE 10 mph

Air QualityFair

Max UV Index6.8 (High)

Wind Gusts14 mph

Humidity55%

Indoor Humidity55% (Humid)

Dew Point65° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover77%

Visibility10 mi

Cloud Ceiling26400 ft

3 PM

83°
RealFeel® 87°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 5%
Chevron down
Mostly cloudy

RealFeel Shade™82°

Heat Index85°

WindE 10 mph

Air QualityFair

Max UV Index4.8 (Moderate)

Wind Gusts15 mph

Humidity54%

Indoor Humidity54% (Humid)

Dew Point65° F

AccuLumen Brightness Index™4 (Dull)

Cloud Cover83%

Visibility10 mi

Cloud Ceiling28200 ft

4 PM

82°
RealFeel® 84°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 6%
Chevron down
Cloudy

RealFeel Shade™81°

Heat Index84°

WindE 10 mph

Air QualityFair

Max UV Index2.9 (Moderate)

Wind Gusts16 mph

Humidity56%

Indoor Humidity56% (Humid)

Dew Point65° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

81°
RealFeel® 82°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 7%
Chevron down
Cloudy

RealFeel Shade™80°

Heat Index83°

WindE 10 mph

Air QualityFair

Max UV Index1.7 (Low)

Wind Gusts15 mph

Humidity58%

Indoor Humidity58% (Humid)

Dew Point65° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling24900 ft

6 PM

80°
RealFeel® 79°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 7%
Chevron down
Cloudy

RealFeel Shade™79°

Heat Index82°

WindE 10 mph

Air QualityFair

Max UV Index0.9 (Low)

Wind Gusts14 mph

Humidity60%

Indoor Humidity60% (Humid)

Dew Point65° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover97%

Visibility10 mi

Cloud Ceiling19800 ft

7 PM

77°
RealFeel® 76°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 9%
Chevron down
Cloudy

RealFeel Shade™76°

WindE 10 mph

Air QualityFair

Max UV Index0.4 (Low)

Wind Gusts13 mph

Humidity64%

Indoor Humidity64% (Humid)

Dew Point64° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover98%

Visibility10 mi

Cloud Ceiling14700 ft

8 PM

75°
RealFeel® 74°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 14%
Chevron down
Partly sunny

RealFeel Shade™74°

WindENE 9 mph

Air QualityPoor

Max UV Index0.4 (Low)

Wind Gusts12 mph

Humidity67%

Indoor Humidity67% (Humid)

Dew Point64° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

74°
RealFeel® 72°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 14%
Chevron down
Partly cloudy

WindENE 8 mph

Air QualityPoor

Wind Gusts9 mph

Humidity68%

Indoor Humidity68% (Humid)

Dew Point63° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

72°
RealFeel® 70°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 18%
Chevron down
Partly cloudy

WindENE 8 mph

Air QualityPoor

Wind Gusts8 mph

Humidity71%

Indoor Humidity71% (Slightly Humid)

Dew Point62° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

70°
RealFeel® 65°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 51%
Chevron down
Partly cloudy w/ t-storms

WindE 7 mph

Air QualityPoor

Wind Gusts8 mph

Humidity77%

Indoor Humidity77% (Slightly Humid)

Dew Point62° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Rain0.04 in

Visibility6 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for St. Charles

AccuWeather's hourly forecast for St. Charles provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 67° with a RealFeel® of 65°, mostly cloudy with a 20% chance of precipitation. Each hourly forecast includes wind speed, humidity, air quality, UV index, and the AccuLumen Brightness Index™, AccuWeather's measure of perceived outdoor light intensity. Forecasts are generated by proprietary systems developed by AccuWeather meteorologists since 1962.

Further Ahead

Tomorrow

Tuesday

10-Day

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Weather Forecasts

Relief is coming to Northeast, but heat and humidity to bounce back

13 hours ago

Hurricane

More tropical activity brewing in the eastern Pacific after Amanda

11 hours ago

Weather News

Outer Banks home collapses into ocean for first time in months

2 days ago

Weather Forecasts

Torrential downpours to raise flash flood risk in south-central US

13 hours ago

Recreation

Firefly season is here: When to watch for summer’s flashing lights

1 day ago

 More Stories

Featured Stories

Health

Why Google wants to release 32 million mosquitoes in 2 states

1 day ago

Weather News

These trees can 'hold their breath' when volcanoes erupt in Hawaii

1 day ago

Astronomy

Sunset after 9pm: Why the sun, clock don't align around the solstice

1 day ago

Astronomy

Venus, Jupiter to shine incredibly close for 2 nights next week

1 day ago

Weather News

Record sargassum seaweed swamps Caribbean, U.S. beaches

3 days 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 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

...

...

...