Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Newsletters
  • Advertising
  • Superior Accuracy™
Find out when the heat will end where you live Chevron right

Illiopolis, IL

90°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Illiopolis

Illinois

90°
No results found.
Try searching for a city, zip code or point of interest.
settings
Illiopolis, 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
Thursday, June 26

Current Weather

12:09 PM

90°F
Sunny
RealFeel® 104°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
RealFeel Shade™ 99°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
RealFeel®
104°
RealFeel Shade™
99°
Max UV Index
10 Very High
Wind
SW 5 mph
Wind Gusts
9 mph
Humidity
71%
Indoor Humidity
71% (Dangerously Humid)
Dew Point
79° F
Pressure
↔ 30.03 in
Cloud Cover
4%
Visibility
19 mi
Cloud Ceiling
40000 ft

Day

6/26
94°Hi
RealFeel® 106°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
RealFeel Shade™ 100°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
Mostly sunny, very hot and humid with a shower; caution advised if outside for extended periods of time
alerts

Heat Advisory

12:00 PM Saturday - 7:00 PM Thursday

Max UV Index11 (Extreme)

AccuLumen Brightness Index™9 (Very Bright)

WindSW 7 mph

Wind Gusts15 mph

Probability of Precipitation80%

Probability of Thunderstorms19%

Precipitation0.05 in

Rain0.05 in

Hours of Precipitation0.5

Hours of Rain0.5

Cloud Cover19%

Morning

Afternoon

Night

6/26
75°Lo
RealFeel® 80°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
Clear, very warm and humid
alerts

Heat Advisory

12:00 PM Saturday - 7:00 PM Thursday

WindS 6 mph

Wind Gusts16 mph

Probability of Precipitation5%

Probability of Thunderstorms1%

Precipitation0.00 in

Cloud Cover3%

Evening

Overnight

Sun & Moon

15 hrs 00 mins
Rise 5:29 AM
Set 8:29 PM
Waxing Crescent
Rise 6:24 AM
Set 10:08 PM

Temperature History

6/26
High
Low
Forecast
94°
75°
Average
85°
63°
Last Year
81°
65°
Record
101°
1954
46°
2004

Further Ahead

Hourly

Daily

Monthly

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Weather Forecasts

Heat dome to break down as downpours and thunderstorms erupt

47 minutes ago

Weather News

Baby rescued from 110-degree car in California

1 day ago

Hurricane

Southeast coast eyed for potential tropical impacts around July 4th

1 hour ago

Weather News

Lifeguard impaled by beach umbrella at Asbury Park

21 hours ago

Astronomy

Four astronauts launch as NASA grapples with leak issue

21 hours ago

 More Stories

Featured Stories

Weather News

What’s behind the decline of music festivals?

2 hours ago

Weather News

Rare event breathes life back into Australia’s arid outback

1 day ago

Weather News

Fossil reveals ‘Last of Us’-type fungus likely lived with dinosaurs

1 day ago

Climate

Your AI prompts could have a hidden environmental cost

3 days ago

Weather News

World’s most liveable city for 2025 revealed

2 days ago
World North America United States Illinois Illiopolis

Weather Near Illiopolis:

  • Champaign, IL
  • Decatur, IL
  • Springfield, 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

...

...

...