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Decatur, IL

81°F
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Decatur

Illinois

81°
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Decatur, IL Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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3 PM

83°
RealFeel® 92°
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
rain drop 49%
Chevron down
Mostly sunny

RealFeel Shade™84°

Heat Index86°

WindNNW 8 mph

Air QualityFair

Max UV Index7.4 (High)

Wind Gusts15 mph

Humidity63%

Indoor Humidity63% (Very Humid)

Dew Point69° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover10%

Visibility10 mi

Cloud Ceiling34000 ft

4 PM

82°
RealFeel® 90°
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
rain drop 45%
Chevron down
Mostly sunny

RealFeel Shade™84°

Heat Index86°

WindNNW 8 mph

Air QualityFair

Max UV Index4.9 (Moderate)

Wind Gusts16 mph

Humidity65%

Indoor Humidity65% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover15%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

81°
RealFeel® 88°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 47%
Chevron down
Mostly sunny

RealFeel Shade™84°

Heat Index85°

WindNNW 9 mph

Air QualityFair

Max UV Index3.4 (Moderate)

Wind Gusts16 mph

Humidity70%

Indoor Humidity70% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover19%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

80°
RealFeel® 81°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 51%
Chevron down
Mostly cloudy w/ t-storms

RealFeel Shade™81°

Heat Index84°

WindN 9 mph

Air QualityFair

Max UV Index0.8 (Low)

Wind Gusts16 mph

Humidity74%

Indoor Humidity74% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Rain0.05 in

Visibility5 mi

Cloud Ceiling4000 ft

7 PM

80°
RealFeel® 83°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 43%
Chevron down
Mostly sunny

RealFeel Shade™82°

Heat Index83°

WindN 9 mph

Air QualityFair

Max UV Index1.2 (Low)

Wind Gusts17 mph

Humidity72%

Indoor Humidity72% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™7 (Bright)

Cloud Cover27%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

79°
RealFeel® 80°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 51%
Chevron down
Partly sunny w/ t-storms

RealFeel Shade™80°

Heat Index83°

WindN 8 mph

Air QualityFair

Max UV Index0.3 (Low)

Wind Gusts16 mph

Humidity74%

Indoor Humidity74% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover23%

Rain0.04 in

Visibility7 mi

Cloud Ceiling30000 ft

9 PM

77°
RealFeel® 80°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 47%
Chevron down
Mostly clear

WindNNE 7 mph

Air QualityFair

Wind Gusts14 mph

Humidity78%

Indoor Humidity78% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover18%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

75°
RealFeel® 77°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 40%
Chevron down
Mostly clear

WindNNE 6 mph

Air QualityFair

Wind Gusts13 mph

Humidity85%

Indoor Humidity85% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover14%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

72°
RealFeel® 74°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 34%
Chevron down
Mostly clear

WindNNE 6 mph

Air QualityFair

Wind Gusts13 mph

Humidity91%

Indoor Humidity91% (Very Humid)

Dew Point69° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover28%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for Decatur

AccuWeather's hourly forecast for Decatur provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 83° with a RealFeel® of 92°, mostly sunny with a 49% chance of precipitation. Each hourly forecast includes wind speed, humidity, air quality, UV index, and the AccuLumen Brightness Index™, AccuWeather's measure of perceived outdoor light intensity. Forecasts are generated by proprietary systems developed by AccuWeather meteorologists since 1962.

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Weather Near Decatur:

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