Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Hottest day yet as heat wave intensifies in the eastern US. Click for the forecast. Chevron right
4th of July forecast: Where will storms disrupt outdoor plans? Chevron right

Lerna, IL

80°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Lerna

Illinois

80°
No results found.
Try searching for a city, zip code or point of interest.
Get Premium+
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
Lerna, 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
2
Extreme Heat Warning

Today's Weather

Fri, Jul 3

Uncomfortably humid with intervals of clouds and sun; a thunderstorm in spots in the afternoon Hi: 92°

Tonight: Clouds breaking with a thunderstorm; warm and very humid Lo: 74°

Current Weather

1:46 AM

80°F
RealFeel® 90°
Clear More Details
Heat Index 85°
Wind S 4 mph
Wind Gusts 4 mph
Air Quality Fair

Lerna Weather Radar

Lerna 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

2 AM 78°
rain drop 4%
3 AM 78°
rain drop 4%
4 AM 77°
rain drop 4%
5 AM 75°
rain drop 4%
6 AM 77°
rain drop 4%
7 AM 78°
rain drop 4%
8 AM 81°
rain drop 5%
9 AM 84°
rain drop 5%
10 AM 86°
rain drop 6%
11 AM 87°
rain drop 7%
12 PM 88°
rain drop 7%
1 PM 90°
rain drop 11%

10-Day Weather Forecast

Today

7/3

92° 74°

A t-storm around in the p.m.

Night: Humid with a thunderstorm
55%

Sat

7/4

92° 72°

Humid; an afternoon t-storm

Partly cloudy, warm and humid
55%

Sun

7/5

86° 68°

A t-storm around in the p.m.

A thunderstorm around early
55%

Mon

7/6

84° 66°

Humid with decreasing clouds

Mainly clear and humid
25%

Tue

7/7

82° 68°

Partly sunny and humid

Partly cloudy and humid
25%

Wed

7/8

84° 69°

Humid with a t-storm or two

Humid; showers around late
62%

Thu

7/9

87° 68°

Some rain and a thunderstorm

A strong thunderstorm late
55%

Fri

7/10

86° 69°

Humid with a stray t-storm

Partly cloudy and humid
55%

Sat

7/11

83° 69°

Humid with a t-storm in spots

A stray shower late; humid
55%

Sun

7/12

83° 70°

Humid; morning rain

Mainly clear and humid
74%

Sun & Moon

14 hrs 54 mins
Rise 5:30 AM
Set 8:24 PM
Waning Gibbous
Rise 10:49 PM
Set 9:54 AM

Air Quality

See More
Air Quality Fair

The air quality is generally acceptable for most individuals. However, sensitive groups may experience minor to moderate symptoms from long-term exposure.

Allergy Outlook

See All
Tree Pollen Low 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 Moderate Data is not supported in this location Dust & Dander Extreme Data is not supported in this location

Top Stories

Weather Forecasts

Fourth of July week furnace: Dangerous heat dome for 250 million

10 hours ago

Weather News

America 250 events are being canceled, reshaped as heat dome grips US

18 hours ago

Weather Forecasts

Heat furnace to flip from eastern to western U.S. next week

7 hours ago
Live Blog

Live: World Cup 2026 weather updates

LATEST ENTRY

USA wins first World Cup knockout match in decades, advances to Round of 16

16 hours ago

Severe Weather

Thunderstorms to circle massive heat furnace into Fourth of July

5 hours ago

 More Stories

Featured Stories

Astronomy

Asteroid Day marks 1908 impact as scientists ready for new discoveries

2 days ago

Weather News

Chicks fly from nest of famous California eagles Jackie and Shadow

2 days ago

Astronomy

A viral sunset and dueling meteor showers are coming in July

2 days ago

Recreation

Girl survives rabid bat attack after receiving lifesaving treatment

14 hours ago

Weather News

2 climbers scale Empire State Building during dangerous heat wave

1 day ago
World North America United States Illinois Lerna

Weather Near Lerna:

  • 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 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

...

...

...