As of 05:09 EDT

Weather in Old Lyme, CT

54°

Old Lyme, Friday, 9 October, 05:09

Clear. Feels like 53°. High 69°, low 51°.

Pressure30.03 inHg

Wind0 mph N

Humidity88%

Visibility6.2 mi

Dew point49°

Fri, 09October

69°/51°

Sat, 10October

66°/48°

Sun, 11October

61°/48°

Mon, 12October

66°/57°

Tue, 13October

69°/55°

Wed, 14October

64°/51°

Thu, 15October

57°/46°

	00:00	02:00	04:00	06:00	08:00	10:00	12:00	14:00	16:00	18:00	20:00	22:00

Temperature	68°	52°	53°	53°	53°	61°	68°	69°	68°	61°	55°	52°
Feels like	68°	50°	51°	52°	51°	60°	66°	67°	66°	60°	53°	50°
Pressure, inHg	30.09	30.09	30.09	30.03	30.06	30.12	30.09	30.09	30.09	30.15	30.18	30.24
Wind, mph	6.1	6.1	6.1	1.7	3.2	3.1	5.1	6.1	4.6	2.3	2.6	2.8
Humidity, %	39%	39%	39%	87%	82%	63%	39%	33%	38%	54%	66%	59%
Precipitation	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in
Visibility	—	—	—	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi

	00:00	02:00	04:00	06:00	08:00	10:00	12:00	14:00	16:00	18:00	20:00	22:00

Temperature	52°	51°	49°	48°	50°	58°	63°	66°	65°	59°	52°	50°
Feels like	50°	49°	47°	47°	47°	57°	61°	64°	63°	58°	50°	50°
Pressure, inHg	30.27	30.27	30.30	30.36	30.42	30.47	30.47	30.45	30.45	30.45	30.47	30.47
Wind, mph	2.6	3.3	2.4	1.8	2.8	2	1.6	2.3	2.1	0.7	0.2	0.4
Humidity, %	64%	64%	73%	82%	79%	60%	42%	36%	37%	64%	75%	82%
Precipitation	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in
Visibility	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi

	00:00	02:00	04:00	06:00	08:00	10:00	12:00	14:00	16:00	18:00	20:00	22:00

Temperature	49°	48°	48°	50°	55°	61°	61°	56°	57°	56°	56°	58°
Feels like	49°	47°	48°	49°	54°	60°	60°	56°	57°	56°	56°	59°
Pressure, inHg	30.47	30.47	30.47	30.45	30.42	30.42	30.39	30.33	30.27	30.21	30.12	30.03
Wind, mph	1.1	1.6	1.1	1.7	2.1	3.9	3.8	2.9	2.4	1.5	3.6	4.1
Humidity, %	83%	84%	91%	95%	84%	63%	62%	91%	99%	100%	100%	99%
Precipitation	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0.04 in	0.01 in	0.03 in	0.01 in	0 in
Visibility	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	2.4 mi	3.7 mi	3.3 mi	3.9 mi	2.5 mi

	00:00	02:00	04:00	06:00	08:00	10:00	12:00	14:00	16:00	18:00	20:00	22:00

Temperature	60°	61°	61°	60°	59°	60°	63°	66°	66°	64°	60°	58°
Feels like	60°	61°	61°	61°	60°	60°	64°	66°	66°	64°	60°	58°
Pressure, inHg	29.91	29.83	29.74	29.65	29.62	29.62	29.62	29.62	29.65	29.68	29.74	29.74
Wind, mph	5	4.7	4.7	4.1	4.3	4.8	5.5	5.7	3.7	3.1	2.9	2.8
Humidity, %	99%	99%	100%	100%	99%	98%	88%	76%	76%	81%	89%	92%
Precipitation	0.03 in	0.11 in	0.04 in	0.01 in	0 in	0.04 in	0.01 in	0 in	0 in	0 in	0 in	0 in
Visibility	2.3 mi	2.3 mi	2.1 mi	6.2 mi	6.2 mi	4.1 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi	6.2 mi

	00:00	02:00	04:00	06:00	08:00	10:00	12:00	14:00	16:00	18:00	20:00	22:00

Temperature	57°	56°	55°	55°	58°	61°	64°	66°	65°	65°	64°	64°
Feels like	57°	56°	55°	54°	58°	61°	64°	66°	66°	65°	65°	64°
Pressure, inHg	29.77	29.80	29.80	29.83	29.83	29.83	29.83	29.83	29.83	29.83	29.83	29.83
Wind, mph	3	3.3	3	3.3	3.3	3.3	3.3	3.3	3.3	3.3	3.3	3.3
Humidity, %	93%	94%	96%	71%	71%	71%	71%	71%	71%	71%	71%	71%
Precipitation	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in
Visibility	6.2 mi	6.2 mi	6.2 mi	—	—	—	—	—	—	—	—	—

	00:00	02:00	04:00	06:00	08:00	10:00	12:00	14:00	16:00	18:00	20:00	22:00

Temperature	61°	52°	55°	58°	59°	60°	61°	61°	61°	61°	60°	56°
Feels like	61°	51°	55°	58°	59°	59°	60°	60°	60°	60°	58°	55°
Pressure, inHg	29.91	29.91	29.91	29.91	29.91	29.91	29.91	29.91	29.91	29.91	29.91	29.91
Wind, mph	4.6	4.6	4.6	4.6	4.6	4.6	4.6	4.6	4.6	4.6	4.6	4.6
Humidity, %	72%	72%	72%	72%	72%	72%	72%	72%	72%	72%	72%	72%
Precipitation	0.01 in	0.01 in	0.01 in	0.01 in	0.01 in	0.01 in	0.01 in	0.01 in	0.01 in	0.01 in	0.01 in	0.01 in
Visibility	—	—	—	—	—	—	—	—	—	—	—	—

	00:00	02:00	04:00	06:00	08:00	10:00	12:00	14:00	16:00	18:00	20:00	22:00

Temperature	54°	52°	49°	46°	48°	50°	53°	54°	54°	55°	55°	54°
Feels like	54°	49°	45°	42°	44°	47°	49°	51°	52°	52°	52°	52°
Pressure, inHg	30.27	30.27	30.27	30.27	30.27	30.27	30.27	30.27	30.27	30.27	30.27	30.27
Wind, mph	4.8	4.8	4.8	4.8	4.8	4.8	4.8	4.8	4.8	4.8	4.8	4.8
Humidity, %	42%	42%	42%	42%	42%	42%	42%	42%	42%	42%	42%	42%
Precipitation	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in	0 in
Visibility	—	—	—	—	—	—	—	—	—	—	—	—

See detailed hourly forecast

Sun and moon today

Day length — 11 h 24 min

Sunrise — 06:54

Sunset — 18:18

Sunrise and sunset in local time

Waning crescent, 4%

Sunrise — —

Sunset — —

Old Lyme, CT climate by month

The annual average temperature in Old Lyme, CT is 51.6°. The warmest month is July (average high 77.9°), and the coldest is January (average low 25.3°). About 47.0 inches of precipitation fall per year, most of it in December (4.5 in). Figures are 60-year climate normals and records from 66 years of observations.

Month	High	Low	Precipitation	Wet days	Record high	Record low
January	36.6°	25.3°	3.7 in	10	61° (2020)	-5.1° (2018)
February	37.7°	26°	3.4 in	9	63.9° (2023)	-8.3° (2016)
March	44.1°	32.3°	4.2 in	11	66.4° (2025)	2.8° (1967)
April	53.1°	41°	3.9 in	11	77.4° (2002)	17.2° (1982)
May	61.9°	50.4°	3.9 in	12	86.2° (2021)	34.3° (2020)
June	71.3°	60.2°	3.7 in	11	93.7° (2025)	45.1° (2000)
July	77.9°	67.1°	3.5 in	10	93.6° (2011)	52.5° (1988)
August	77.2°	66.8°	4.3 in	11	91.8° (1975)	50.4° (1982)
September	71.1°	60.7°	4.0 in	9	88.7° (1983)	42.3° (2000)
October	61.2°	50.9°	4.0 in	9	80.6° (2019)	29.1° (2020)
November	51.4°	41.1°	3.8 in	10	74.3° (2024)	14.5° (2018)
December	42°	31.6°	4.5 in	11	66.4° (1998)	-2.6° (1980)