Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Dangerous storms loom for millions from Texas to the Northeast. Click for the forecast. Chevron right
Heat wave brings summerlike weather to the East. See how hot it will get this week. Chevron right

Percy, IL

70°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Percy

Illinois

70°
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
Percy, 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

Today's Weather

Tue, May 19

Mostly cloudy and humid with a couple of showers and a t-storm; breezy this morning; thunderstorms can bring flash flooding and localized damaging wind gusts Hi: 79°

Tonight: A heavy thunderstorm around this evening; otherwise, cloudy Lo: 60°

Current Weather

9:01 AM

70°F
RealFeel® 71°
Cloudy More Details
RealFeel Shade™ 69°
Wind SSW 5 mph
Wind Gusts 9 mph
Air Quality Excellent

MINUTECAST®

Rain starting in 5 min

Now
10:01 AM

Looking Ahead

Thunderstorms, some heavy, this morning through this evening

Percy Weather Radar

Percy Weather Radar
Static Radar Temporarily Unavailable
Thank you for your patience as we work to get everything up and running again.
Refresh Page
Clouds
Temperature

Hourly Weather

10 AM 75°
rain drop 64%
11 AM 77°
rain drop 49%
12 PM 79°
rain drop 47%
1 PM 79°
rain drop 51%
2 PM 78°
rain drop 53%
3 PM 78°
rain drop 49%
4 PM 78°
rain drop 46%
5 PM 76°
rain drop 49%
6 PM 73°
rain drop 49%
7 PM 71°
rain drop 57%
8 PM 70°
rain drop 40%
9 PM 69°
rain drop 34%

10-Day Weather Forecast

Today

5/19

79° 60°

A shower and t-storm; humid

Night: A heavy t-storm early; cloudy
90%

Wed

5/20

69° 56°

Cooler; a shower in the a.m.

Partly cloudy
55%

Thu

5/21

72° 57°

Partly sunny and pleasant

A shower and t-storm late
25%

Fri

5/22

72° 62°

A shower and t-storm; humid

Clouds and a t-storm in spots
88%

Sat

5/23

76° 62°

Cloudy, a thunderstorm; humid

Mostly cloudy
55%

Sun

5/24

76° 63°

Humid with a t-storm in spots

Cloudy with showers
30%

Mon

5/25

78° 63°

Intervals of clouds and sun

Occasional late-night rain
25%

Tue

5/26

77° 66°

Humid with periods of rain

Humid with rain and a t-storm
62%

Wed

5/27

79° 65°

Humid with rain and a t-storm

Humid with rain and a t-storm
68%

Thu

5/28

78° 66°

Humid with rain and a t-storm

Humid with occasional rain
69%

Sun & Moon

14 hrs 21 mins
Rise 5:45 AM
Set 8:06 PM
Waxing Crescent
Rise 8:06 AM
Set 11:52 PM

Air Quality

See More
Air Quality Excellent

The air quality is ideal for most individuals; enjoy your normal outdoor activities.

Allergy Outlook

See All
Tree Pollen Very High Data is not supported in this location Ragweed Pollen Low Data is not supported in this location Mold Low Data is not supported in this location Grass Pollen Low Data is not supported in this location Dust & Dander Moderate Data is not supported in this location

Top Stories

Severe Weather

Dangerous storms loom for millions from Texas to the Northeast

4 hours ago

Weather Forecasts

Heat wave to complete spring weather whiplash, worsen drought in East

4 hours ago

Storm chaser captures towering tornado developing in central Nebraska

14 hours ago 0:30

Severe Weather

Tornadoes charge through Plains, Midwest, ripping apart homes in Nebra...

19 hours ago

Weather Forecasts

Memorial Day weekend: Downpours, storms from Texas to New England

4 hours ago

 More Stories

Featured Stories

Astronomy

SpaceX poised for first Starship flight test of 2026 following delays

21 minutes ago

Why some tornado warnings are more dangerous

1 day ago 0:56

Severe Weather

10 types of tornadoes that occur in the US

1 day ago

Severe Weather

Does a green sky mean a tornado is coming?

1 day ago

Climate

Turkmenistan's fiery 'Gates of Hell' crater is dimming

4 days ago
World North America United States Illinois Percy

Weather Near Percy:

  • O'Fallon, MO
  • St. Charles, MO
  • St. Louis, MO
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

...

...

...