Live Weather & Forecast
Weather in Seymour
Connecticut, United States · Real-time conditions & 3-day outlook
18°C
Feels like 18°C
65°F / Feels 65°F
Overcast
Seymour, Connecticut
🌙 Nighttime
Updated: 2026-04-12 05:00
Humidity
99%
Wind
32.4 km/h S
Wind Gust
51.5 km/h
Pressure
1013 mb
Visibility
16 km
UV Index
0
(Low)
Precipitation
5.22 mm
Cloud Cover
100%
Dew Point
17.6°C
Wind Degree
176°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
137.9 μg/m³
NO₂
2.3 μg/m³
O₃
64 μg/m³
SO₂
0.9 μg/m³
PM 2.5
1.2 μg/m³
PM 10
1.2 μg/m³
Weather Alerts 1
Met
· Severe · Future
Severe Thunderstorm Watch issued April 12 at 1:03AM CDT until April 12 at 8:00AM CDT by NWS Fort Worth TX
THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 101 IN EFFECT UNTIL 8 AM CDT THIS MORNING FOR THE FOLLOWING AREAS IN TEXAS THIS WATCH INCLUDES 19 COUNTIES IN CENTRAL TEXAS BELL BOSQUE COMANCHE CORYELL FALLS HAMILTON LAMPASAS MCLENNAN MILAM MILLS IN NORTH CENTRAL TEXAS EASTLAND...
Today's Hourly Forecast
24-hour breakdown for Seymour, Connecticut
12 AM
20°
Light rain
1 AM
20°
Moderate rain
2 AM
20°
Heavy rain
3 AM
20°
Light rain
4 AM
19°
Patchy rain nearby
5 AM
18°
Overcast
6 AM
19°
Light drizzle
7 AM
19°
Patchy light rain
8 AM
20°
Sunny
9 AM
21°
Partly Cloudy
10 AM
21°
Sunny
11 AM
22°
Partly Cloudy
12 PM
23°
Partly Cloudy
1 PM
24°
Sunny
2 PM
25°
Sunny
3 PM
26°
Sunny
4 PM
28°
Sunny
5 PM
28°
Sunny
6 PM
29°
Sunny
7 PM
27°
Sunny
8 PM
26°
Sunny
9 PM
25°
Clear
10 PM
24°
Clear
11 PM
23°
Clear
3-Day Forecast
Daily overview for Seymour, Connecticut
Today
Heavy rain
29°
/
19°
🌧️ 88% chance of rain
💧 Avg. humidity: 79%
💨 Max wind: 34.9 km/h
🌧️ Total precip: 29.82 mm
☀️ UV Index: 1.9
🌅 Sunrise: 07:10 AM
🌇 Sunset: 08:06 PM
🌙 Waning Crescent
🌑 Moon: 33% lit
Mon, Apr 13
Overcast
33°
/
19°
🌧️ 0% chance of rain
💧 Avg. humidity: 67%
💨 Max wind: 37.8 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 2.2
🌅 Sunrise: 07:09 AM
🌇 Sunset: 08:07 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Thundery outbreaks in nearby
29°
/
21°
🌧️ 0% chance of rain
💧 Avg. humidity: 70%
💨 Max wind: 38.5 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.9
🌅 Sunrise: 07:08 AM
🌇 Sunset: 08:07 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Best Time to Visit Seymour
Plan your trip to Seymour, United States around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Seymour?
Current conditions in Seymour: Overcast, temperature 18°C, humidity 99%.
What is the best time to visit Seymour?
The best time to visit Seymour is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Seymour?
Seymour is located at approximately 33.6° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Seymour?
The wettest period in Seymour is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Seymour?
For visits to Seymour during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Seymour in?
Seymour is located in United States, in the state of Connecticut.
What are the public holidays in Seymour in 2026?
View the 2026 public holidays for Seymour on our Holidays page.
What are the GPS coordinates used for the weather forecast in Seymour?
The weather forecast for Seymour uses coordinates 33.5942, -99.2603.