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Hottest day yet as heat wave intensifies in the eastern US. Click for the forecast. Chevron right
4th of July forecast: Where will storms disrupt outdoor plans? Chevron right

Waterbury, CT

74°F
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Waterbury

Connecticut

74°
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Waterbury, CT Weather
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7 AM

77°
RealFeel® 84°
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 0%
Chevron down
Sunny
alerts

Extreme Heat Warning

12:00 PM Wednesday - 9:00 PM Saturday

RealFeel Shade™82°

WindWNW 6 mph

Air QualityFair

Max UV Index1.3 (Low)

Wind Gusts7 mph

Humidity86%

Indoor Humidity86% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover8%

Visibility10 mi

Cloud Ceiling30000 ft

8 AM

81°
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 0%
Chevron down
Mostly sunny
alerts

Extreme Heat Warning

12:00 PM Wednesday - 9:00 PM Saturday

RealFeel Shade™86°

Heat Index86°

WindWNW 6 mph

Air QualityFair

Max UV Index2.2 (Low)

Wind Gusts7 mph

Humidity75%

Indoor Humidity75% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

9 AM

86°
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.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny
alerts

Extreme Heat Warning

12:00 PM Wednesday - 9:00 PM Saturday

RealFeel Shade™90°

Heat Index92°

WindWNW 7 mph

Air QualityFair

Max UV Index3.4 (Moderate)

Wind Gusts9 mph

Humidity65%

Indoor Humidity65% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

10 AM

89°
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.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny
alerts

Extreme Heat Warning

12:00 PM Wednesday - 9:00 PM Saturday

RealFeel Shade™93°

Heat Index96°

WindWNW 7 mph

Air QualityFair

Max UV Index4.8 (Moderate)

Wind Gusts12 mph

Humidity58%

Indoor Humidity58% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

11 AM

92°
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.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny
alerts

Extreme Heat Warning

12:00 PM Wednesday - 9:00 PM Saturday

RealFeel Shade™95°

Heat Index99°

WindWNW 8 mph

Air QualityFair

Max UV Index7.3 (High)

Wind Gusts14 mph

Humidity51%

Indoor Humidity51% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

12 PM

95°
RealFeel® 106°
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.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny
alerts

Extreme Heat Warning

12:00 PM Wednesday - 9:00 PM Saturday

RealFeel Shade™97°

Heat Index102°

WindWNW 8 mph

Air QualityPoor

Max UV Index9.5 (Very High)

Wind Gusts16 mph

Humidity46%

Indoor Humidity46% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

1 PM

97°
RealFeel® 108°
Dangerous Heat
RealFeel Guide
Dangerous Heat
108° to 115°
Caution advised. 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 0%
Chevron down
Mostly sunny
alerts

Extreme Heat Warning

12:00 PM Wednesday - 9:00 PM Saturday

RealFeel Shade™98°

Heat Index104°

WindWNW 8 mph

Air QualityPoor

Max UV Index10.4 (Very High)

Wind Gusts18 mph

Humidity42%

Indoor Humidity42% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

2 PM

99°
RealFeel® 109°
Dangerous Heat
RealFeel Guide
Dangerous Heat
108° to 115°
Caution advised. 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 1%
Chevron down
Mostly sunny
alerts

Extreme Heat Warning

12:00 PM Wednesday - 9:00 PM Saturday

RealFeel Shade™100°

Heat Index106°

WindWNW 9 mph

Air QualityPoor

Max UV Index9.5 (Very High)

Wind Gusts17 mph

Humidity39%

Indoor Humidity39% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

3 PM

100°
RealFeel® 108°
Dangerous Heat
RealFeel Guide
Dangerous Heat
108° to 115°
Caution advised. 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 1%
Chevron down
Mostly sunny
alerts

Extreme Heat Warning

12:00 PM Wednesday - 9:00 PM Saturday

RealFeel Shade™101°

Heat Index107°

WindWNW 9 mph

Air QualityPoor

Max UV Index7.3 (High)

Wind Gusts18 mph

Humidity37%

Indoor Humidity37% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

98°
RealFeel® 104°
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.
LEARN MORE
rain drop 1%
Chevron down
Mostly sunny
alerts

Extreme Heat Warning

12:00 PM Wednesday - 9:00 PM Saturday

RealFeel Shade™99°

Heat Index104°

WindWNW 9 mph

Air QualityPoor

Max UV Index4.8 (Moderate)

Wind Gusts18 mph

Humidity38%

Indoor Humidity38% (Very Humid)

Dew Point69° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

97°
RealFeel® 101°
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.
LEARN MORE
rain drop 0%
Chevron down
Mostly sunny
alerts

Extreme Heat Warning

12:00 PM Wednesday - 9:00 PM Saturday

RealFeel Shade™98°

Heat Index102°

WindW 9 mph

Air QualityPoor

Max UV Index3.4 (Moderate)

Wind Gusts18 mph

Humidity39%

Indoor Humidity39% (Very Humid)

Dew Point68° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

94°
RealFeel® 97°
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 0%
Chevron down
Partly sunny
alerts

Extreme Heat Warning

12:00 PM Wednesday - 9:00 PM Saturday

RealFeel Shade™95°

Heat Index98°

WindW 8 mph

Air QualityFair

Max UV Index2.2 (Low)

Wind Gusts16 mph

Humidity44%

Indoor Humidity44% (Very Humid)

Dew Point69° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover40%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

90°
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.
LEARN MORE
rain drop 3%
Chevron down
Partly sunny
alerts

Extreme Heat Warning

12:00 PM Wednesday - 9:00 PM Saturday

RealFeel Shade™93°

Heat Index96°

WindW 7 mph

Air QualityFair

Max UV Index1.3 (Low)

Wind Gusts14 mph

Humidity51%

Indoor Humidity51% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™7 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

88°
RealFeel® 96°
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 51%
Chevron down
Partly sunny w/ t-storms
alerts

Extreme Heat Warning

12:00 PM Wednesday - 9:00 PM Saturday

RealFeel Shade™96°

Heat Index100°

WindW 6 mph

Air QualityFair

Max UV Index0.4 (Low)

Wind Gusts12 mph

Humidity72%

Indoor Humidity72% (Dangerously Humid)

Dew Point78° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover25%

Rain0.04 in

Visibility6 mi

Cloud Ceiling30000 ft

9 PM

85°
RealFeel® 89°
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 clear
alerts

Extreme Heat Warning

12:00 PM Wednesday - 9:00 PM Saturday

Heat Index90°

WindW 6 mph

Air QualityFair

Wind Gusts9 mph

Humidity64%

Indoor Humidity64% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

82°
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.
LEARN MORE
rain drop 35%
Chevron down
Mostly clear
alerts

Extreme Heat Warning

12:00 PM Wednesday - 9:00 PM Saturday

Heat Index86°

WindW 6 mph

Air QualityFair

Wind Gusts7 mph

Humidity70%

Indoor Humidity70% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

82°
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 19%
Chevron down
Mostly clear
alerts

Extreme Heat Warning

12:00 PM Wednesday - 9:00 PM Saturday

Heat Index87°

WindW 5 mph

Air QualityFair

Wind Gusts6 mph

Humidity75%

Indoor Humidity75% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for Waterbury

AccuWeather's hourly forecast for Waterbury provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 77° with a RealFeel® of 84°, sunny with a 0% 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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