Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
High-risk tornado outbreak unfolds across the Plains. Click for the forecast. Chevron right
Heat wave brings summerlike weather to the East. See how hot it will get this week. Chevron right

Haddam, CT

84°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Haddam

Connecticut

84°
No results found.
Try searching for a city, zip code or point of interest.
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
Haddam, 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
Air Quality Alert

Unlock extended 90-day forecasts

Activate Your Premium+ Subscription

Chevron right

May 18 - June 1

Mon 5/18

84° /62°
6%
Mostly sunny and very warm
alerts

Air Quality Alert

8:48 AM Monday - 11:00 PM Monday

RealFeel®95°

RealFeel Shade™83°

Max UV Index10.0 (Very High)

WindSSE 7 mph

Tue 5/19

90° /66°
25%
Mostly cloudy and remaining very warm

RealFeel®93°

RealFeel Shade™88°

Max UV Index8.0 (Very High)

WindSW 8 mph

Wed 5/20

95° /55°
57%
Hot with sun followed by increasing clouds; a thunderstorm in the afternoon; possible danger of dehydration and heatstroke while doing strenuous activities

RealFeel®100°

RealFeel Shade™93°

Max UV Index10.0 (Very High)

WindW 9 mph

Hours of Precipitation1

Hours of Rain1

Thu 5/21

70° /47°
7%
Mostly cloudy and less humid

RealFeel®76°

RealFeel Shade™68°

Max UV Index4.0 (Moderate)

WindNNW 6 mph

Fri 5/22

66° /49°
13%
Intervals of clouds and sunshine

RealFeel®78°

RealFeel Shade™65°

Max UV Index6.0 (High)

WindSE 6 mph

Sat 5/23

58° /50°
30%
A thick cloud cover and cooler with a couple of showers possible

RealFeel®52°

RealFeel Shade™51°

Max UV Index3.0 (Moderate)

WindESE 6 mph

Sun 5/24

63° /53°
30%
Considerable cloudiness with a couple of showers possible

RealFeel®61°

RealFeel Shade™60°

Max UV Index3.0 (Moderate)

WindENE 10 mph

Mon 5/25

73° /54°
30%
Times of clouds and sun with a couple of showers possible

RealFeel®76°

RealFeel Shade™72°

Max UV Index4.0 (Moderate)

WindN 4 mph

Tue 5/26

72° /53°
24%
Cloudy

RealFeel®72°

RealFeel Shade™72°

Max UV Index2.0 (Low)

WindS 4 mph

Wed 5/27

73° /56°
67%
Variable cloudiness with a couple of showers

RealFeel®77°

RealFeel Shade™71°

Max UV Index10.0 (Very High)

WindNNW 6 mph

Hours of Precipitation2.5

Hours of Rain2.5

Thu 5/28

74° /55°
2%
Partly sunny

RealFeel®79°

RealFeel Shade™71°

Max UV Index10.0 (Very High)

WindSW 7 mph

Fri 5/29

74° /56°
11%
Sunny

RealFeel®79°

RealFeel Shade™71°

Max UV Index10.0 (Very High)

WindSSW 7 mph

Sat 5/30

75° /57°
21%
Times of sun and clouds

RealFeel®80°

RealFeel Shade™73°

Max UV Index6.0 (High)

WindS 7 mph

Sun 5/31

76° /54°
25%
Mostly cloudy

RealFeel®77°

RealFeel Shade™76°

Max UV Index5.0 (Moderate)

WindWNW 7 mph

Mon 6/1

72° /56°
60%
Plenty of clouds; a shower in spots in the morning followed by a little rain in the afternoon

RealFeel®72°

RealFeel Shade™71°

Max UV Index3.0 (Moderate)

WindNE 6 mph

Hours of Precipitation2

Hours of Rain2

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Severe Weather

High-risk tornado outbreak unfolds across Plains into Monday night

2 hours ago

Weather Forecasts

Heat wave to complete spring weather whiplash, worsen drought in East

2 hours ago

Astronomy

Crescent moon is about to join Venus and Jupiter in evening sky

4 hours ago

Weather Forecasts

Wildfire risk to focus across the Southwest, Plains

7 hours ago

Winter Weather

Winter to return to Colorado, Wyoming with more May mountain snow

7 hours ago

 More Stories

Featured Stories

Astronomy

Watch an asteroid safely pass close to Earth on Monday

2 hours ago

Severe Weather

10 types of tornadoes that occur in the US

4 hours ago

Astronomy

SpaceX poised for first Starship flight test of 2026

2 days ago

Severe Weather

Does a green sky mean a tornado is coming?

4 hours ago

Climate

Turkmenistan's fiery 'Gates of Hell' crater is dimming

3 days ago
World North America United States Connecticut Haddam

Weather Near Haddam:

  • 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

...

...

...