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Greenwich, CT

86°F
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Greenwich, CT Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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10 AM

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.
LEARN MORE
rain drop 13%
Chevron down
Partly sunny
alerts

Air Quality Alert

4:07 PM Wednesday - 11:00 PM Thursday

RealFeel Shade™88°

Heat Index91°

WindW 9 mph

Air QualityFair

Max UV Index4.8 (Moderate)

Wind Gusts12 mph

Humidity61%

Indoor Humidity61% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

11 AM

87°
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 13%
Chevron down
Intermittent clouds
alerts

Air Quality Alert

4:07 PM Wednesday - 11:00 PM Thursday

RealFeel Shade™90°

Heat Index93°

WindW 9 mph

Air QualityFair

Max UV Index6.4 (High)

Wind Gusts14 mph

Humidity58%

Indoor Humidity58% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover69%

Visibility10 mi

Cloud Ceiling30000 ft

12 PM

89°
RealFeel® 98°
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 13%
Chevron down
Intermittent clouds
alerts

Heat Advisory

12:00 PM Thursday - 8:00 PM Friday
alerts

Air Quality Alert

4:07 PM Wednesday - 11:00 PM Thursday

RealFeel Shade™91°

Heat Index94°

WindW 9 mph

Air QualityFair

Max UV Index7.5 (High)

Wind Gusts14 mph

Humidity55%

Indoor Humidity55% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling24900 ft

1 PM

90°
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 17%
Chevron down
Intermittent clouds
alerts

Heat Advisory

12:00 PM Thursday - 8:00 PM Friday
alerts

Air Quality Alert

4:07 PM Wednesday - 11:00 PM Thursday

RealFeel Shade™92°

Heat Index96°

WindW 9 mph

Air QualityFair

Max UV Index7.4 (High)

Wind Gusts14 mph

Humidity53%

Indoor Humidity53% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling19800 ft

2 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.
LEARN MORE
rain drop 30%
Chevron down
Intermittent clouds
alerts

Heat Advisory

12:00 PM Thursday - 8:00 PM Friday
alerts

Air Quality Alert

4:07 PM Wednesday - 11:00 PM Thursday

RealFeel Shade™93°

Heat Index97°

WindWNW 9 mph

Air QualityFair

Max UV Index6.0 (High)

Wind Gusts14 mph

Humidity51%

Indoor Humidity51% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling14700 ft

3 PM

92°
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 30%
Chevron down
Intermittent clouds
alerts

Heat Advisory

12:00 PM Thursday - 8:00 PM Friday
alerts

Air Quality Alert

4:07 PM Wednesday - 11:00 PM Thursday

RealFeel Shade™94°

Heat Index98°

WindWNW 9 mph

Air QualityFair

Max UV Index4.7 (Moderate)

Wind Gusts12 mph

Humidity48%

Indoor Humidity48% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling16100 ft

4 PM

92°
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 34%
Chevron down
Intermittent clouds
alerts

Heat Advisory

12:00 PM Thursday - 8:00 PM Friday
alerts

Air Quality Alert

4:07 PM Wednesday - 11:00 PM Thursday

RealFeel Shade™93°

Heat Index97°

WindWNW 9 mph

Air QualityFair

Max UV Index3.2 (Moderate)

Wind Gusts12 mph

Humidity49%

Indoor Humidity49% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling17600 ft

5 PM

89°
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.
LEARN MORE
rain drop 47%
Chevron down
Intermittent clouds
alerts

Heat Advisory

12:00 PM Thursday - 8:00 PM Friday
alerts

Air Quality Alert

4:07 PM Wednesday - 11:00 PM Thursday

RealFeel Shade™90°

Heat Index94°

WindWNW 9 mph

Air QualityFair

Max UV Index2.4 (Low)

Wind Gusts12 mph

Humidity53%

Indoor Humidity53% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling19100 ft

6 PM

86°
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 51%
Chevron down
Mostly cloudy w/ t-storms
alerts

Heat Advisory

12:00 PM Thursday - 8:00 PM Friday
alerts

Air Quality Alert

4:07 PM Wednesday - 11:00 PM Thursday

RealFeel Shade™89°

Heat Index95°

WindWNW 9 mph

Air QualityFair

Max UV Index0.7 (Low)

Wind Gusts10 mph

Humidity69%

Indoor Humidity69% (Extremely Humid)

Dew Point75° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Rain0.28 in

Visibility3 mi

Cloud Ceiling2000 ft

7 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 43%
Chevron down
Intermittent clouds
alerts

Heat Advisory

12:00 PM Thursday - 8:00 PM Friday
alerts

Air Quality Alert

4:07 PM Wednesday - 11:00 PM Thursday

RealFeel Shade™86°

Heat Index86°

WindW 8 mph

Air QualityFair

Max UV Index0.9 (Low)

Wind Gusts9 mph

Humidity68%

Indoor Humidity68% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling19100 ft

8 PM

81°
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 51%
Chevron down
Thunderstorms
alerts

Heat Advisory

12:00 PM Thursday - 8:00 PM Friday
alerts

Air Quality Alert

4:07 PM Wednesday - 11:00 PM Thursday

RealFeel Shade™83°

Heat Index86°

WindSW 7 mph

Air QualityFair

Max UV Index0.1 (Low)

Wind Gusts9 mph

Humidity79%

Indoor Humidity79% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover76%

Rain0.15 in

Visibility4 mi

Cloud Ceiling2000 ft

9 PM

79°
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 47%
Chevron down
Mostly cloudy
alerts

Heat Advisory

12:00 PM Thursday - 8:00 PM Friday
alerts

Air Quality Alert

4:07 PM Wednesday - 11:00 PM Thursday

Heat Index80°

WindWSW 7 mph

Air QualityFair

Wind Gusts8 mph

Humidity77%

Indoor Humidity77% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

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

Heat Advisory

12:00 PM Thursday - 8:00 PM Friday
alerts

Air Quality Alert

4:07 PM Wednesday - 11:00 PM Thursday

WindWSW 7 mph

Air QualityFair

Wind Gusts9 mph

Humidity82%

Indoor Humidity82% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

77°
RealFeel® 80°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 34%
Chevron down
Mostly cloudy
alerts

Heat Advisory

12:00 PM Thursday - 8:00 PM Friday

WindW 7 mph

Air QualityFair

Wind Gusts8 mph

Humidity83%

Indoor Humidity83% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for Greenwich

AccuWeather's hourly forecast for Greenwich provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 86° with a RealFeel® of 93°, partly sunny with a 13% 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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