What is today's weather forecast for Seymour, CT?

Today's forecast for Seymour shows a high of 39 degrees and a low of 11 degrees Fahrenheit. Sunny, with a high near 39.

What is the 7-day weather forecast for Seymour, CT?

The 7-day forecast for Seymour shows highs from 32 to 42 degrees and lows from 11 to 26 degrees Fahrenheit. Expect precipitation on 3 days with chances of 20% or higher.

Will it rain in Seymour, CT this week?

Yes, rain is possible in Seymour this week. Precipitation chances: Friday (30% chance), Saturday (20% chance), Tuesday (30% chance).

How accurate is the Seymour weather forecast?

WeatherForYou provides highly accurate Seymour forecasts using National Weather Service data and current conditions from the nearest available weather stations, often miles closer than regional airports, for the most precise local forecasts.

Seymour, CT Weather Forecast and Current Conditions

Current Conditions From Nearby Local Station

Switch to Metric Units

41°F
Feels Like 38°F

Humidity 54% Dew Point 26°F Wind WNW 5 MPH Gusts 5 Barometer 29.85 in.

Solar Rad 204 w/m²

Report from a personal weather station 1.2 mi. S of central Seymour
at 2:40 PM Thu, Dec 4, 2025

Point Forecast at a Glance

ThuDec 4

FriDec 5

SatDec 6

20%

SunDec 7

MonDec 8

TueDec 9

WedDec 10

7-Day Temperature Trend

Week Ahead Summary

High temperatures remain relatively stable through the week, ranging from 32°F to 42°F. Some precipitation possible with wintry mix on at least one day.

Climate Context

This week's forecast shows temperatures running 4°F below the historical average for December. Normal highs for this period are around 42°F with lows around 27°F.

This Date in Weather History

1972 - Winds gusting to 70 mph sent the temperature at Livingston, MT, plunging from 52 degrees to 18 degrees in just twenty minutes.

Seymour, CT 7 Day Weather Forecast Details

Thursday Dec 4

Day: Sunny, with a high near 39. Wind chill values between 25 and 30. West wind around 15 mph, with gusts as high as 26 mph.

Night: Mostly clear, with a low around 11. Northwest wind 6 to 11 mph becoming light north after midnight. Winds could gust as high as 23 mph.

Friday Dec 5

Day: Sunny, with a high near 32. Wind chill values between 10 and 20. Calm wind becoming south around 6 mph.

Night: A 30 percent chance of snow after 1am. Mostly cloudy, with a steady temperature around 26. Calm wind.

Saturday Dec 6

Day: A slight chance of rain and snow before 10am, then a slight chance of rain between 10am and 1pm. Mostly cloudy, with a high near 42. Calm wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 20%.

Night: Partly cloudy, with a low around 25.

Sunday Dec 7

Day: Partly sunny, with a high near 41.

Night: Mostly cloudy, with a low around 21.

Monday Dec 8

Day: Sunny, with a high near 33.

Night: Mostly clear, with a low around 12.

Tuesday Dec 9

Day: Partly sunny, with a high near 35.

Night: A 30 percent chance of snow. Mostly cloudy, with a low around 26.

Wednesday Dec 10

Day: Mostly cloudy, with a high near 42.

About Seymour, CT

Seymour is a town located in New Haven County, Connecticut, United States. The town is part of the Naugatuck Valley Planning Region. The population was 16,748 at the 2020 census. Seymour is bordered by the towns of Oxford and Beacon Falls to the north, Bethany and Woodbridge to the east, Ansonia and Derby to the south, and Shelton to the west.

Content from Wikipedia, licensed under CC BY-SA 3.0.

How We Provide Better Local Weather

Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.

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