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Heat dome collapse to spark thunderstorms. Get the forecast.

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Belleville, IL

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Belleville, IL Weather

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2 PM

96°

RealFeel® 105°

Very Hot

RealFeel Guide

Very Hot

101° to 107°

Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.

47%

Thunderstorms

Extreme Heat Warning

12:00 PM Sunday - 8:00 PM Saturday

RealFeel Shade™99°

Heat Index106°

WindS 8 mph

Air QualityPoor

Max UV Index5.5 (High)

Wind Gusts10 mph

Humidity49%

Indoor Humidity49% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover89%

Rain0.01 in

Visibility10 mi

Cloud Ceiling30000 ft

3 PM

96°

RealFeel® 107°

Very Hot

RealFeel Guide

Very Hot

101° to 107°

Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.

46%

Intermittent clouds

Extreme Heat Warning

12:00 PM Sunday - 8:00 PM Saturday

RealFeel Shade™101°

Heat Index106°

WindSSE 9 mph

Air QualityPoor

Max UV Index6.5 (High)

Wind Gusts12 mph

Humidity48%

Indoor Humidity48% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

94°

RealFeel® 102°

Very Hot

RealFeel Guide

Very Hot

101° to 107°

Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.

54%

Mostly cloudy w/ t-storms

Extreme Heat Warning

12:00 PM Sunday - 8:00 PM Saturday

RealFeel Shade™99°

Heat Index109°

WindSSE 9 mph

Air QualityPoor

Max UV Index1.7 (Low)

Wind Gusts13 mph

Humidity59%

Indoor Humidity59% (Dangerously Humid)

Dew Point78° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Rain0.11 in

Visibility4 mi

Cloud Ceiling2000 ft

5 PM

91°

RealFeel® 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.

39%

Intermittent clouds

Extreme Heat Warning

12:00 PM Sunday - 8:00 PM Saturday

RealFeel Shade™95°

Heat Index99°

WindSSE 9 mph

Air QualityPoor

Max UV Index2.9 (Moderate)

Wind Gusts12 mph

Humidity56%

Indoor Humidity56% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

88°

RealFeel® 95°

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.

33%

Intermittent clouds

Extreme Heat Warning

12:00 PM Sunday - 8:00 PM Saturday

RealFeel Shade™93°

Heat Index96°

WindSSE 9 mph

Air QualityPoor

Max UV Index1.8 (Low)

Wind Gusts10 mph

Humidity62%

Indoor Humidity62% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

88°

RealFeel® 94°

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.

39%

Intermittent clouds

Extreme Heat Warning

12:00 PM Sunday - 8:00 PM Saturday

RealFeel Shade™93°

Heat Index96°

WindSSE 9 mph

Air QualityPoor

Max UV Index1.0 (Low)

Wind Gusts10 mph

Humidity62%

Indoor Humidity62% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™4 (Dull)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

86°

RealFeel® 93°

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.

51%

Thunderstorms

Extreme Heat Warning

12:00 PM Sunday - 8:00 PM Saturday

RealFeel Shade™93°

Heat Index98°

WindS 7 mph

Air QualityFair

Max UV Index0.1 (Low)

Wind Gusts8 mph

Humidity74%

Indoor Humidity74% (Extremely Humid)

Dew Point77° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover76%

Rain0.12 in

Visibility4 mi

Cloud Ceiling2000 ft

9 PM

84°

RealFeel® 91°

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.

47%

Mostly cloudy

Extreme Heat Warning

12:00 PM Sunday - 8:00 PM Saturday

Heat Index91°

WindS 7 mph

Air QualityFair

Wind Gusts8 mph

Humidity73%

Indoor Humidity73% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling2000 ft

10 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.

40%

Mostly cloudy

Extreme Heat Warning

12:00 PM Sunday - 8:00 PM Saturday

Heat Index86°

WindS 6 mph

Air QualityFair

Wind Gusts7 mph

Humidity79%

Indoor Humidity79% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

80°

RealFeel® 86°

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.

33%

Mostly cloudy

Extreme Heat Warning

12:00 PM Sunday - 8:00 PM Saturday

Heat Index84°

WindS 6 mph

Air QualityFair

Wind Gusts7 mph

Humidity83%

Indoor Humidity83% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for Belleville

AccuWeather's hourly forecast for Belleville provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 96° with a RealFeel® of 105°, thunderstorms with a 47% 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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