Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
After a snow-starved winter, Denver is facing a late-season snowstorm. See the timing. Chevron right
Thunderstorms to rattle central, eastern US this week. Get the forecast. Chevron right

Johnstown, IL

75°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Johnstown

Illinois

75°
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
Johnstown, 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
Tuesday, May 5

Day

5/5
60°Hi
RealFeel® 58°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
RealFeel Shade™ 56°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
Cooler with periods of rain and a thunderstorm

Max UV Index2.0 (Low)

AccuLumen Brightness Index™1 (Dark)

WindNNW 9 mph

Wind Gusts18 mph

Probability of Precipitation94%

Probability of Thunderstorms29%

Precipitation0.39 in

Rain0.39 in

Hours of Precipitation4

Hours of Rain4

Cloud Cover99%

Morning

Afternoon

Night

5/5
46°Lo
RealFeel® 41°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
Occasional rain in the evening; otherwise, cloudy

WindNNE 9 mph

Wind Gusts13 mph

Probability of Precipitation69%

Probability of Thunderstorms8%

Precipitation0.15 in

Rain0.15 in

Hours of Precipitation2

Hours of Rain2

Cloud Cover99%

Evening

Overnight

Sun & Moon

14 hrs 00 mins
Rise 5:50 AM
Set 7:50 PM
Waning Gibbous
Rise --
Set 8:01 AM

Temperature History

5/5
High
Low
Forecast
60°
46°
Average
71°
50°
Last Year
61°
47°

Further Ahead

Hourly

10-Day

Monthly

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Winter Weather

Late-season snowstorm to snarl travel in Denver, Rockies

3 hours ago

Severe Weather

Severe storms to rattle central, eastern US in first full week of May

3 hours ago

Weather News

Lightning may have sparked fire that destroyed Florida marine lab

1 hour ago

Astronomy

Halley's comet fuels Eta Aquarids lighting up the sky this week

6 hours ago

Weather Forecasts

Turbulent temperatures, more freezes ahead for Midwest, Northeast

4 hours ago

 More Stories

Featured Stories

Health

Melanoma survivor’s story underscores importance of early checks

7 hours ago

Weather News

Massive sea lion 'Chonkers' drawing crowds in San Francisco

8 hours ago

Weather News

Residents flee ash after Mayon Volcano erupts in the Philippines

8 hours ago

Weather News

Travel plans upended as Spirit Airlines shuts down

8 hours ago

Health

3 dead, 3 ill in suspected hantavirus outbreak on cruise ship

6 hours ago
World North America United States Illinois Johnstown

Weather Near Johnstown:

  • 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

...

...

...