Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Flash flood dangers far from over as storms reload across US. Details here Chevron right
Tropical rainstorm soaks Florida, could strengthen in Gulf before targeting Louisiana Chevron right

St. Johns, IL

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

St. Johns

Illinois

90°
No results found.
Try searching for a city, zip code or point of interest.
settings
St. Johns, 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

Forensics

Advertising

Superior Accuracy™

Video

Winter Center
Today Hourly Daily Radar MinuteCast Monthly Air Quality Health & Activities
Wednesday, July 16

Day

7/16
92°Hi
RealFeel® 109°
Dangerous Heat
RealFeel Guide
Dangerous Heat
108° to 115°
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
Turning cloudy and uncomfortably humid; a shower in places this afternoon

Max UV Index11 (Extreme)

AccuLumen Brightness Index™7 (Bright)

WindSW 7 mph

Wind Gusts16 mph

Probability of Precipitation40%

Probability of Thunderstorms10%

Precipitation0.05 in

Rain0.05 in

Hours of Precipitation0.5

Hours of Rain0.5

Cloud Cover58%

Morning

Afternoon

Night

7/16
74°Lo
RealFeel® 81°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
Mainly clear, warm and very humid

WindSSW 6 mph

Wind Gusts14 mph

Probability of Precipitation5%

Probability of Thunderstorms1%

Precipitation0.00 in

Cloud Cover13%

Evening

Overnight

Sun & Moon

14 hrs 32 mins
Rise 5:47 AM
Set 8:19 PM
Waning Gibbous
Rise 11:42 PM
Set 1:05 PM

Temperature History

7/16
High
Low
Forecast
92°
74°
Average
88°
68°
Last Year
83°
71°
Record
102°
1980
48°
1930

Further Ahead

Hourly

Daily

Monthly

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Weather News

Grand Canyon fires force closures

15 hours ago

 More Stories

Featured Stories

Astronomy

Noctilucent clouds shimmer in summer sky

2 days ago

Recreation

Yellowstone’s landscape shifts again with discovery of new hot pool

2 days ago

Weather News

Orcas are bringing humans gifts of food – but why?

5 days ago

Weather News

Giant shoes found spark mystery around the soldiers of ancient Rome

2 days ago

Weather News

It’s not just humans – chimpanzees also like to follow trends

2 days ago
World North America United States Illinois St. Johns

Weather Near St. Johns:

  • Cape Girardeau, MO
  • Carbondale, IL
  • Paducah, KY
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

...

...

...