What is today's weather forecast for Old Lyme, CT?

Today's forecast for Old Lyme shows a low of 25 degrees Fahrenheit. Mostly cloudy, then gradually becoming clear, with a low around 25.

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

The 7-day forecast for Old Lyme shows highs from 36 to 53 degrees and lows from 22 to 31 degrees Fahrenheit. Expect precipitation on 3 days with chances of 20% or higher.

Will it rain in Old Lyme, CT this week?

Yes, rain is possible in Old Lyme this week. Precipitation chances: Thursday (90% chance), Friday (90% chance), Tuesday (30% chance).

How accurate is the Old Lyme weather forecast?

WeatherForYou provides highly accurate Old Lyme 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.

Old Lyme, CT Weather Forecast and Current Conditions

Current Conditions From Nearby Local Station

Switch to Metric Units

28°F
Feels Like 28°F

Humidity 76% Dew Point 21°F Wind Calm Barometer 30.32 in.

Report from a personal weather station 2.1 mi. NW of central Old Lyme
at 4:37 PM Tue, Dec 16, 2025

Point Forecast at a Glance

TueDec 16

WedDec 17

ThuDec 18

FriDec 19

90%

SatDec 20

SunDec 21

MonDec 22

Jump to detailed forecast ↓

7-Day Temperature Trend

Week Ahead Summary

Variable high temperatures through the week, ranging from 36°F to 53°F. Some rain possible with at least 2 days showing precipitation chances of 20% or higher.

Climate Context

Temperatures are expected to be near normal for this time of year, with highs around 43°F and lows around 28°F.

This Date in Weather History

1835 - New England experienced one of their coldest days of record. At noon on that bitterly cold Wednesday the mercury stood at four degrees below at Boston, 15 degrees below at Norfolk CT, and 17 degrees below at Hanover NH. The temperature at Boston was 12 degrees below zero by sunset. Gale force winds accompanied the severe cold, and that night a great New York City fire destroyed much of the financial district.

Old Lyme, CT 7 Day Weather Forecast Details

Tuesday Dec 16

Night: Mostly cloudy, then gradually becoming clear, with a low around 25. Calm wind becoming southwest around 6 mph after midnight.

Wednesday Dec 17

Day: Mostly sunny, with a high near 44. Wind chill values between 25 and 35. Southwest wind 8 to 13 mph, with gusts as high as 25 mph.

Night: Mostly clear, with a low around 26. West wind 5 to 8 mph becoming calm after midnight. Winds could gust as high as 23 mph.

Thursday Dec 18

Day: Mostly sunny, with a high near 53. Calm wind becoming south 5 to 8 mph in the afternoon.

Night: Rain, mainly after 1am. Temperature rising to around 50 by 4am. South wind 5 to 13 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Friday Dec 19

Day: Rain, mainly before 1pm. Temperature rising to near 54 by 10am, then falling to around 45 during the remainder of the day. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.

Night: Partly cloudy, with a low around 26.

Saturday Dec 20

Day: Mostly sunny, with a high near 42.

Night: Mostly cloudy, with a low around 31.

Sunday Dec 21

Day: Partly sunny, with a high near 46.

Night: Partly cloudy, with a low around 24.

Monday Dec 22

Day: Mostly sunny, with a high near 36.

Night: Partly cloudy, with a low around 22.

Tuesday Dec 23

Day: A chance of rain and snow. Partly sunny, with a high near 41. Chance of precipitation is 30%.

About Old Lyme, CT

Old Lyme is a coastal town in New London County, Connecticut, United States, bounded on the west by the Connecticut River, on the south by the Long Island Sound, on the east by the town of East Lyme, and on the north by the town of Lyme. The town is part of the Lower Connecticut River Valley Planning Region.The main street of the town, Lyme Street, is a historic district with several homes once owned by sea captains. The town has had for many years a thriving art community. Its principal institutions include the Florence Griswold Museum, the Lyme Art Association, and the Lyme Academy of Fine Arts. The town is named after Lyme Regis, England. Several seasonal beach communities are in Old Lyme, such as Point O' Woods, Hawk's Nest, and Miami Beach. Several hundred people rent seasonal cottages and beach front homes from late May through mid October in Old Lyme. Hartford Avenue, the main street through beach area, features several small stores and a carousel for young children. The town of Old Lyme contains several villages, including Black Hall, Laysville, Soundview, and South Lyme. The total population of the town was 7,628 at the 2020 census.

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

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