Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Hurricane Simon churns near Mexico with Trudy strengthening nearby. Click for details. Chevron right
Coldest air of the season may bring snowflakes to the Northeast. Click for more. Chevron right

Groton, CT

77°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Groton

Connecticut

77°
No results found.
Try searching for a city, zip code or point of interest.
Get Premium+
Create Your Account Unlock extended daily and hourly forecasts — all with your free account.
Let's Go Chevron right
Have an account already? Log In
settings
Help
Groton, CT Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

News & Features

Astronomy

Business

Climate

Health

Recreation

Sports

Travel

For Business

Warnings

Data Suite

Forensics

Advertising

Superior Accuracy™

Video

Winter Center

Today

Hourly

10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

View hourly forecasts 10-days ahead

Activate Your Premium+ Subscription

Chevron right

1 PM

78°
RealFeel® 78°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 50%
Chevron down
Showers

RealFeel Shade™75°

WindW 8 mph

Air QualityFair

Max UV Index2.6 (Moderate)

Wind Gusts17 mph

Humidity65%

Indoor Humidity65% (Humid)

Dew Point65° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover76%

Rain0.01 in

Visibility10 mi

Cloud Ceiling30000 ft

2 PM

78°
RealFeel® 77°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 42%
Chevron down
Showers

RealFeel Shade™77°

WindW 9 mph

Air QualityFair

Max UV Index1.0 (Low)

Wind Gusts18 mph

Humidity61%

Indoor Humidity61% (Humid)

Dew Point64° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover98%

Visibility10 mi

Cloud Ceiling10000 ft

3 PM

78°
RealFeel® 80°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 38%
Chevron down
Partly sunny

RealFeel Shade™76°

WindW 8 mph

Air QualityFair

Max UV Index2.8 (Moderate)

Wind Gusts18 mph

Humidity61%

Indoor Humidity61% (Humid)

Dew Point64° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

78°
RealFeel® 79°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 35%
Chevron down
Partly sunny

RealFeel Shade™77°

WindW 8 mph

Air QualityFair

Max UV Index2.0 (Low)

Wind Gusts20 mph

Humidity60%

Indoor Humidity60% (Humid)

Dew Point64° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover34%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

77°
RealFeel® 76°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 34%
Chevron down
Mostly sunny

RealFeel Shade™75°

WindW 8 mph

Air QualityFair

Max UV Index1.3 (Low)

Wind Gusts20 mph

Humidity63%

Indoor Humidity63% (Humid)

Dew Point63° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover29%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

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

RealFeel Shade™72°

WindWNW 8 mph

Air QualityFair

Max UV Index0.4 (Low)

Wind Gusts16 mph

Humidity67%

Indoor Humidity67% (Slightly Humid)

Dew Point62° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover39%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

71°
RealFeel® 69°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 25%
Chevron down
Partly cloudy

WindNW 8 mph

Air QualityFair

Wind Gusts16 mph

Humidity71%

Indoor Humidity71% (Slightly Humid)

Dew Point61° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

68°
RealFeel® 65°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 7%
Chevron down
Mostly cloudy

WindNW 8 mph

Air QualityFair

Wind Gusts14 mph

Humidity73%

Indoor Humidity72% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

65°
RealFeel® 63°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 7%
Chevron down
Mostly cloudy

WindNW 8 mph

Air QualityFair

Wind Gusts13 mph

Humidity74%

Indoor Humidity67% (Slightly Humid)

Dew Point57° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

63°
RealFeel® 60°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 7%
Chevron down
Mostly cloudy

WindNW 8 mph

Air QualityFair

Wind Gusts13 mph

Humidity75%

Indoor Humidity62% (Ideal Humidity)

Dew Point55° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

61°
RealFeel® 58°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 7%
Chevron down
Mostly cloudy

WindNW 8 mph

Air QualityFair

Wind Gusts12 mph

Humidity75%

Indoor Humidity58% (Ideal Humidity)

Dew Point53° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for Groton

AccuWeather's hourly forecast for Groton provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 78° with a RealFeel® of 78°, showers with a 50% 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.

Further Ahead

Tomorrow

Friday

10-Day

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Weather Forecasts

Coldest air of the season so far on the way for Northeast

6 hours ago

Hurricane

Hurricane Simon is lingering; new threat brewing from Trudy in Mexico

3 hours ago

Winter Weather

See it: Early snow blankets the West as Great Falls piles up 16 inches

21 hours ago

Severe Weather

Flooding downpours and severe storms to target the Plains

1 hour ago

Weather Forecasts

Santa Ana winds to bring heat, wildfire risk to Southern California

2 hours ago

More Stories

Featured Stories

Astronomy

NASA rover breaks Mars record after slow-mo 28-mile trek

1 hour ago

Weather News

Flooding washes away homes, bridges, damages power station in Nepal

2 days ago

Recreation

Utah ultramarathon canceled after heavy rain leaves about 70 stranded

23 hours ago

Recreation

Text from lost hiker sparks overnight search in California redwood par...

1 day ago

Weather News

Hilarious animal photos from this year’s Comedy Wildlife Awards

3 days ago

World North America United States Connecticut Groton

Weather Near Groton:

  • Hartford, CT
  • New Haven, CT
  • Waterbury, CT
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
© 2026 AccuWeather, Inc. "AccuWeather" and sun design are registered trademarks of AccuWeather, Inc. All Rights Reserved.
Terms of Use | Privacy Policy | Cookie Policy | About Your Privacy Do Not Sell or Share My Personal Information | Data Sources

...

...

...