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Decatur, IL

42°F
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Decatur

Illinois

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Decatur, IL Weather
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Today

 WinterCast Hourly Daily Radar MinuteCast Monthly Air Quality Health & Activities
Wind Advisory

Current Weather

5:00 PM

42°F
RealFeel® 38°
RealFeel Shade™ 37°
Air Quality Fair
Wind ENE 4 mph
Wind Gusts 9 mph
Light rain More Details

MINUTECAST®

Rain for at least 60 min

WinterCast

Friday Morning - Friday Afternoon

A coating to an inch
Snow
1 Upcoming Storm See More

Current Air Quality

Today

2/8

20
AQI

Fair

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

Based on Current Pollutants

More Details

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Current Air Quality

Our current air quality index (AQI) provides information on the quality of air that you are breathing and its impact on your health. There are at least six different pollutants that we track that impact the cleanliness of air and your health.

Health & Activities
See all
Tree Pollen
Low
The risk of tree pollen symptoms is low.
Ragweed Pollen
Low
The risk for ragweed pollen symptoms is low.
Mold
Low
The risk of mold allergy symptoms is low.
Grass Pollen
Low
The risk of grass pollen symptoms is low.
Dust & Dander
Moderate
The risk of dust and dander allergy symptoms is moderate. Closing your windows on windy days can help prevent outside dust or dander from getting into your home.
Arthritis
Low
The risk of experiencing weather-related arthritis pain is low.
Sinus Pressure
Moderate
The risk of weather-related sinus pressure is moderate. Make sure you stay hydrated.
Common Cold
Low
The risk of catching a cold is low.
Flu
Low
The risk of catching the flu is low.
Migraine
Low
The risk of suffering from a weather-related migraine is low.
Asthma
Low
The risk of asthma symptoms is low.
Fishing
Poor
Fishing conditions are poor.
Running
Good
Conditions for running are good. Be sure to wear sunscreen and UV-protective activewear.
Golf
Fair
Conditions for golfing are fair. Be prepared for 'invisible hazards' like wind that can make the game more challenging.
Biking & Cycling
Fair
Conditions for cycling are fair. Know the surfaces you'll be riding on to ensure your ride is as safe as possible with your available gear.
Beach & Pool
Poor
Conditions for a day at the beach or pool are poor. Stay out of the water if there is a chance of lightning. Only swim in water temperatures below 55 degrees if you have the proper gear.
Stargazing
Poor
Conditions for stargazing are poor.
Hiking
Poor
Conditions for hiking are poor.
Lawn Mowing
Poor
Conditions for lawn mowing are poor. Avoid mowing your lawn when it is wet, or temperatures are too cold.
Composting
Poor
Composting conditions are poor. Keep your compost area covered.
Outdoor Entertaining
Poor
Conditions for outdoor entertaining will be poor. Consider moving your party indoors or under some form of cover.
Air Travel
Ideal
Conditions for flying are ideal. Have a safe trip.
Driving
Fair
Conditions for driving are fair. Keep up with your car maintenance, such as inspecting your windshield wipers and checking your tire treads.
Mosquitos
Low
The risk for mosquito activity are low.
Indoor Pests
High
The risk for pest activity is high. Replacing outdoor lights with yellow bug lights can attract less insects near your home.
Outdoor Pests
Moderate
The risk for pest activity is moderate. Do not leave garbage or food open and unattended.
See all

TODAY’S WEATHER FORECAST

2/8
44°Hi
RealFeel® 42°
Overcast with afternoon rain

TONIGHT’S WEATHER FORECAST

2/8
41°Lo
RealFeel® 29°
Rain; a thunderstorm late

TOMORROW’S WEATHER FORECAST

2/9
50°/ 30°
RealFeel® 39°
Windy; a few morning showers

Looking Ahead

Snow and ice from Friday morning into Friday evening will total a coating to an inch

Snowfall Probability

Snow expected Friday - see amounts

Decatur Weather Radar

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World North America United States Illinois Decatur

Weather Near Decatur:

  • Champaign, IL
  • Peoria, IL
  • Springfield, IL
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