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As of 04:30 EDT

Weather in Old Lyme, CT

73°Current weather

Old Lyme, Sunday, 9 August, 04:30

Clear. Feels like 75°. High 89°, low 73°.

Pressure29.91 inHg
Wind7.4 mph W
Humidity89%
Visibility6.2 mi
Dew point70°

10-day forecast for Old Lyme, CT: 60° to 89°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.

89°
Best day: Sunday, August 9
80° · 0.14 in
Worst day: Thursday, August 13

Tap any day below to see morning, afternoon, evening and overnight.

Mon, 1086° / 69°0.04Light rain
MorningMostly clear74°feels 74°
AfternoonMostly clear85°feels 86°
EveningPartly cloudy76°feels 77°
OvernightClear70°feels 70°
86 °Light rain

Old Lyme, Monday, 10 August

Light rain. High 86°, low 69°.

Pressure30.00 inHg
Wind4.9 mph SW
Humidity51%
Visibility6.2 mi
Dew point57°
Tue, 1181° / 71°0.11Light rain
MorningOvercast72°feels 73°
AfternoonOvercast79°feels 79°
EveningPartly cloudy75°feels 75°
OvernightPartly cloudy73°feels 75°
81 °Light rain

Old Lyme, Tuesday, 11 August

Light rain. High 81°, low 71°.

Pressure29.83 inHg
Wind7.4 mph NW
Humidity83%
Visibility6.2 mi
Dew point70°
Wed, 1273° / 68°0Overcast
MorningOvercast70°feels 70°
AfternoonOvercast72°feels 72°
EveningOvercast71°feels 72°
OvernightOvercast69°feels 69°
73 °Overcast

Old Lyme, Wednesday, 12 August

Overcast. High 73°, low 68°.

Pressure29.77 inHg
Wind2.7 mph E
Humidity63%
Visibility6.2 mi
Dew point61°
Thu, 1380° / 67°0.14Light rain
MorningLight rain71°feels 72°
AfternoonLight rain75°feels 75°
EveningLight rain78°feels 77°
OvernightOvercast69°feels 70°
80 °Light rain

Old Lyme, Thursday, 13 August

Light rain. High 80°, low 67°.

Pressure29.68 inHg
Wind15.9 mph NW
Humidity82%
Visibility—
Dew point67°
Fri, 1475° / 60°0Clear
MorningClear63°feels 62°
AfternoonClear70°feels 68°
EveningClear73°feels 72°
OvernightClear62°feels 61°
75 °Clear

Old Lyme, Friday, 14 August

Clear. High 75°, low 60°.

Pressure29.94 inHg
Wind15.9 mph W
Humidity47%
Visibility—
Dew point47°
Sat, 1577° / 60°0Clear
MorningClear63°feels 62°
AfternoonClear71°feels 70°
EveningClear75°feels 74°
OvernightClear65°feels 64°
77 °Clear

Old Lyme, Saturday, 15 August

Clear. High 77°, low 60°.

Pressure30.00 inHg
Wind18.6 mph NW
Humidity46%
Visibility—
Dew point46°
Sun, 1677° / 62°0Overcast
MorningOvercast66°feels 65°
AfternoonOvercast75°feels 74°
EveningOvercast74°feels 74°
OvernightOvercast66°feels 65°
77 °Overcast

Old Lyme, Sunday, 16 August

Overcast. High 77°, low 62°.

Pressure30.12 inHg
Wind10.3 mph NW
Humidity46%
Visibility—
Dew point51°
Mon, 1775° / 64°0.06Light rain
MorningLight rain66°feels 65°
AfternoonLight rain72°feels 72°
EveningLight rain74°feels 74°
OvernightLight rain68°feels 68°
75 °Light rain

Old Lyme, Monday, 17 August

Light rain. High 75°, low 64°.

Pressure30.03 inHg
Wind14.5 mph S
Humidity53%
Visibility—
Dew point53°
Tue, 1874° / 63°0.06Light rain
MorningLight rain66°feels 66°
AfternoonLight rain73°feels 73°
EveningLight rain74°feels 74°
OvernightLight rain71°feels 71°
74 °Light rain

Old Lyme, Tuesday, 18 August

Light rain. High 74°, low 63°.

Pressure30.03 inHg
Wind11.3 mph SW
Humidity59%
Visibility—
Dew point56°

About this forecast

How reliable is a 10-day forecast?

The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.

What does the time-of-day table show?

Temperature in Old Lyme, CT around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.

How is the best day chosen?

We weigh the daytime high against precipitation: a warm, dry day scores highest.