Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™

St. Johns, IL

26°F
Location Chevron down
Location News Videos
Use Current Location
Recent

St. Johns

Illinois

26°
No results found.
Try searching for a city, zip code or point of interest.
Create Account Unlock extended daily forecasts and additional saved locations — all with your free account.
Let's Go Chevron right
Have an account already? Login
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
Sunday, January 18

Current Weather

6:43 PM

26°F
Clear
RealFeel® 20°
Very Cold
RealFeel Guide
Very Cold
10° to 24°
Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.
LEARN MORE
RealFeel®
20°
Wind
SSW 7 mph
Wind Gusts
13 mph
Humidity
50%
Indoor Humidity
23% (Very Dry)
Dew Point
9° F
Pressure
↑ 30.08 in
Cloud Cover
9%
Visibility
22 mi
Cloud Ceiling
40000 ft

Day

1/18
27°Hi
RealFeel® 20°
Very Cold
RealFeel Guide
Very Cold
10° to 24°
Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.
LEARN MORE
RealFeel Shade™ 20°
Very Cold
RealFeel Guide
Very Cold
10° to 24°
Caution advised. Older adults, infants, and those with sensitive medical conditions, should be well dressed to protect from hypothermia and frostbite. Coat, hat, gloves and a scarf are appropriate.
LEARN MORE
Partly sunny and cold; breezy this afternoon

Max UV Index2.0 (Low)

AccuLumen Brightness Index™7 (Bright)

WindSW 9 mph

Wind Gusts21 mph

Probability of Precipitation1%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover30%

Morning

Afternoon

Night

1/18
13°Lo
RealFeel® 3°
Bitterly Cold
RealFeel Guide
Bitterly Cold
-10° to 9°
Caution advised. Frostbite to exposed skin within 15 minutes. Hypothermia likely without protective clothing.
LEARN MORE
A couple of flurries this evening; otherwise, partly cloudy and cold, becoming breezy late

WindWNW 13 mph

Wind Gusts25 mph

Probability of Precipitation55%

Probability of Thunderstorms0%

Precipitation0.00 in

Snow

Hours of Precipitation2

Cloud Cover29%

Evening

Overnight

Sun & Moon

9 hrs 53 mins
Rise 7:11 AM
Set 5:04 PM
New Moon
Rise 7:22 AM
Set 4:57 PM

Temperature History

1/18
High
Low
Forecast
27°
13°
Average
41°
23°
Last Year
43°
27°
Record
70°
1923
-20°
1977

Further Ahead

Hourly

Daily

Monthly

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Winter Weather

Stormy late-January setup raises risk for snow and ice impacts

6 hours ago

Climate

Western US faces worsening snow drought, with California the exception

1 day ago

Winter Weather

Clipper storm to spread snow over Upper Midwest, Northeast

4 hours ago

Winter Weather

1 dead after 5 pileups on snowy roads in New York, Pennsylvania

2 days ago

Weather Forecasts

Dry, warm weather to hold west of Rockies, but fog may cause problems

5 hours ago

 More Stories

Featured Stories

Climate

Why this famous iceberg turned blue and what it says about melting ice

2 days ago

Astronomy

NASA to roll out Artemis II rocket ahead of astronaut moon launch

2 days ago

Recreation

Death of 2 Florida students highlights risks of sand collapse

3 days ago

Astronomy

March’s total lunar eclipse will turn the moon red, here’s when to see...

4 days ago

Recreation

Rare and majestic sand sculptures only exist for minutes

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
© 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

...

...

...