Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Polar vortex to unleash frigid air before end of January. Get the details. Chevron right
Accumulating snow to blanket part of Northeast this week. See the forecast. Chevron right

Potomac, IL

42°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Potomac

Illinois

42°
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
Potomac, 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 WinterCast Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities
Wednesday, January 14

Day

1/14
34°Hi
RealFeel® 17°
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™ 17°
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
A couple of rain or snow showers in the morning; otherwise, cloudy, windy and colder; watch for icy spots

Max UV Index1.0 (Low)

AccuLumen Brightness Index™1 (Dark)

WindNNW 20 mph

Wind Gusts41 mph

Probability of Precipitation73%

Probability of Thunderstorms0%

Precipitation0.05 in

Rain0.02 in

Snow0.30 in

Hours of Precipitation2

Hours of Rain1

Cloud Cover96%

Morning

Afternoon

Night

1/14
14°Lo
RealFeel® -7°
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
Cloudy, windy and colder

WindNNW 21 mph

Wind Gusts41 mph

Probability of Precipitation25%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover95%

Evening

Overnight

Sun & Moon

9 hrs 36 mins
Rise 7:13 AM
Set 4:49 PM
Waning Crescent
Rise 4:04 AM
Set 1:00 PM

Temperature History

1/14
High
Low
Forecast
34°
14°
Average
35°
19°
Last Year
22°
1°
Record
65°
1928
-9°
1997

Further Ahead

Hourly

Daily

Monthly

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Winter Weather

Snow returns with colder air in northeast U.S. beyond midweek

9 hours ago

Weather Forecasts

Florida to have freezing weather as temperatures tumble in Southeast

10 hours ago

Astronomy

Crew-11 astronauts set for early return as NASA eyes California weathe...

10 hours ago

Winter Weather

Polar vortex to usher in much colder air to central and eastern U.S.

9 hours ago

Winter Weather

January Thaw: The midwinter warmup that makes it feel like spring

1 day ago

 More Stories

Featured Stories

Weather News

Kilauea’s latest eruption sent lava 800 feet high

13 hours ago

Weather News

Wildfires scorch up to 52,000 acres in Argentina's Patagonia

14 hours ago
Live Blog

Lightning over Milan, like you've never seen it

LATEST ENTRY

ISS astronaut captures surreal photo of lightning and Milan at night

1 day ago

Weather News

Japan dives into New Year with prayers and an icy plunge

1 day ago

Astronomy

SpaceX launches Twilight rideshare with NASA, 3D-printing missions

1 day ago
World North America United States Illinois Potomac

Weather Near Potomac:

  • 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
© 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

...

...

...