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Old Lyme CT Weather - Partly Cloudy - 53°F
Partly Cloudy
53°F
Updated 3:53 pm
Feels Like 50°F
Humidity 76%
Wind E 10 mph
Barometer  29.88 in
Dew Point 46°F
Old Lyme CT Weather - Partly Cloudy - 12°C
Partly Cloudy
12°C
Updated 3:53 pm
Feels Like 10°C
Humidity 76%
Wind E 16 km/h
Barometer  101.1 kPa
Dew Point 8°C
Old Lyme, CT Weather and Current Conditionsold lyme ct weather forecast

Old Lyme, CT Weather Forecast

Old Lyme Connecticut WeatherOld Lyme, Connecticut Weather Weather Forecast
14 day API weather forecast for Old Lyme, Connecticut. Note: The 7-day weather forecast for Old Lyme, CT is the most reliable and accurate weather forecast. This model should only be used as a likely scenario. It is difficult to predict weather more than 7 days ahead.
Old Lyme, CT Weather Forecast Dated: 353 PM Wed Mar 11 2026 (Old Lyme Time)
Wed, 11th
Old Lyme CT Weather  - Wednesday, Mar 11, 2026 - Patchy Rain Nearby
Lo: 6°C43°F
Hi: 14°C56°F
Chance of showers Wednesday, temperatures as high as 56°F14°C, low temperature around 43°F6°C, chance of rain 67%, wind out of the S 12 mph20 km/h. Barometric pressure 29.94 in1014 mb, visibility 6 mi10 km, humidity 91%.
Thu, 12th
Old Lyme CT Weather  - Thursday, Mar 12, 2026 - Patchy Rain Nearby
Lo: -0°C32°F
Hi: 10°C50°F
Chance of showers Thursday, temperatures as high as 50°F10°C, low temperature around 32°F-0°C, chance of rain 61%, wind out of the W 17 mph27 km/h. Barometric pressure 29.71 in1006 mb, visibility 5 mi8 km, humidity 76%.
Fri, 13th
Old Lyme CT Weather  - Friday, Mar 13, 2026 - Partly Cloudy
Lo: -1°C31°F
Hi: 4°C39°F
Partly Cloudy Friday, temperatures as high as 39°F4°C, low temperature around 31°F-1°C, wind out of the WSW 23 mph37 km/h. Barometric pressure 30.09 in1019 mb, visibility 6 mi9 km, humidity 58%.
Sat, 14th
Old Lyme CT Weather  - Saturday, Mar 14, 2026 - Partly Cloudy
Lo: -0°C32°F
Hi: 9°C49°F
Partly Cloudy Saturday, temperatures as high as 49°F9°C, low temperature around 32°F-0°C, wind out of the W 26 mph42 km/h. Barometric pressure 30 in1016 mb, visibility 6 mi10 km, humidity 65%.
Sun, 15th
Old Lyme CT Weather  - Sunday, Mar 15, 2026 - Patchy Rain Nearby
Lo: -1°C30°F
Hi: 2°C36°F
Chance of showers Sunday, temperatures as high as 36°F2°C, low temperature around 30°F-1°C, probability of precipitation 89%, wind out of the SSE 18 mph30 km/h. Barometric pressure 30.42 in1030 mb, visibility 5 mi8 km, humidity 63%.
Mon, 16th
Old Lyme CT Weather  - Monday, Mar 16, 2026 - Heavy Rain
Lo: 5°C40°F
Hi: 12°C53°F
Rain Monday, temperatures as high as 53°F12°C, low temperature around 40°F5°C, chance of rain 76%, wind out of the S 31 mph50 km/h. Barometric pressure 29.77 in1008 mb, visibility 5 mi8 km, humidity 95%.
Tue, 17th
Old Lyme CT Weather  - Tuesday, Mar 17, 2026 - Partly Cloudy
Lo: -2°C29°F
Hi: 3°C38°F
Partly Cloudy Tuesday, temperatures as high as 38°F3°C, low temperature around 29°F-2°C, wind out of the W 17 mph27 km/h. Barometric pressure 29.91 in1013 mb, visibility 6 mi10 km, humidity 57%.
Wed, 18th
Old Lyme CT Weather  - Wednesday, Mar 18, 2026 - Partly Cloudy
Lo: -3°C26°F
Hi: 1°C34°F
Partly Cloudy Wednesday, temperatures as high as 34°F1°C, low temperature around 26°F-3°C, wind out of the WSW 12 mph19 km/h. Barometric pressure 30.39 in1029 mb, visibility 6 mi10 km, humidity 44%.
Thu, 19th
Old Lyme CT Weather  - Thursday, Mar 19, 2026 - Partly Cloudy
Lo: -1°C30°F
Hi: 3°C37°F
Partly Cloudy Thursday, temperatures as high as 37°F3°C, low temperature around 30°F-1°C, wind out of the ESE 11 mph17 km/h. Barometric pressure 30.45 in1031 mb, visibility 6 mi10 km, humidity 59%.
Fri, 20th
Old Lyme CT Weather  - Friday, Mar 20, 2026 - Sunny
Lo: -2°C29°F
Hi: 4°C39°F
Sunny Friday, temperatures as high as 39°F4°C, low temperature around 29°F-2°C, wind out of the SE 11 mph17 km/h. Barometric pressure 30.39 in1029 mb, visibility 6 mi10 km, humidity 69%.
Sat, 21st
Old Lyme CT Weather  - Saturday, Mar 21, 2026 - Partly Cloudy
Lo: 3°C37°F
Hi: 9°C48°F
Partly Cloudy Saturday, temperatures as high as 48°F9°C, low temperature around 37°F3°C, wind out of the WSW 18 mph29 km/h. Barometric pressure 30.03 in1017 mb, visibility 6 mi10 km, humidity 82%.
Sun, 22nd
Old Lyme CT Weather  - Sunday, Mar 22, 2026 - Partly Cloudy
Lo: 3°C37°F
Hi: 8°C46°F
Partly Cloudy Sunday, temperatures as high as 46°F8°C, low temperature around 37°F3°C, wind out of the NW 10 mph16 km/h. Barometric pressure 30.12 in1020 mb, visibility 6 mi10 km, humidity 57%.
Mon, 23rd
Old Lyme CT Weather  - Monday, Mar 23, 2026 - Cloudy
Lo: 5°C41°F
Hi: 11°C52°F
Cloudy Monday, temperatures as high as 52°F11°C, low temperature around 41°F5°C, wind out of the SSW 9 mph14 km/h. Barometric pressure 30.06 in1018 mb, visibility 5 mi8 km, humidity 75%.
Tue, 24th
Old Lyme CT Weather  - Tuesday, Mar 24, 2026 - Partly Cloudy
Lo: 8°C46°F
Hi: 14°C58°F
Partly Cloudy Tuesday, temperatures as high as 58°F14°C, low temperature around 46°F8°C, wind out of the SSW 23 mph36 km/h. Barometric pressure 29.85 in1011 mb, visibility 4 mi6 km, humidity 90%.

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