Old Lyme, CT Weather Forecast
Lower Connecticut River Valley Planning Region, Connecticut
Live radar, warnings and storm tracking for Old Lyme, with free alerts the moment it counts.
The next few hours
Dry for the moment, with rain moving in this afternoon
It is 45°, but the wind is taking it down to 42° on exposed skin. The sky is overcast.
Pressure is easing down, 0.02 inHg over the last hour. The first rain arrives between 2 PM and 3 PM, with the best chance of it around 11 AM. That leaves a usable window outdoors until about 2 PM, and it closes quickly after that.
Taller, warmer bars mean heavier rain. Dotted means no reading for that hour.
Hour by hour
A long wet stretch ahead
Wet weather moves in around 2 PM. Total accumulation over the window comes to about 0.92 in.
The overnight low settles near 46°. Tomorrow reaches 58°, 10° warmer than today. It also gets muggier, so tomorrow will feel warmer than the number on its own suggests.
Sunrise and sunset
Next five days, scored 0 to 100The first day or two use the HRRR and NBM cloud layers. Later days only have total cloud, so treat them as a rough guide.
Know when sunset at this place will be worth a photo
We score every sunrise and sunset here from the cloud, haze and smoke forecast, and let you know when one is likely to light up. Sunrise the evening before, sunset a few hours ahead.
Seven-day outlook
32–59°F across the weekThe week runs between 32° and 58°, with tomorrow the warmest day of it. There is no real trend across it: one day looks much like the next. Friday is the wettest day, peaking near 100%. 4 of the 7 days stay dry.
Free alerts for Old Lyme
Every NWS warning, pushed to your phone, inbox or webhook the moment it is issued.
Old Lyme, CT at a glance
Old Lyme is home to about 7,696 people in Lower Connecticut River Valley Planning Region, across 23 square miles. It ranks 110th by population of 151 places in Connecticut with a forecast here. The nearest neighbour with its own forecast is Old Saybrook, 4 miles away.
- County
- Lower Connecticut River Valley Planning Region
- Population
- 7,696 2023 est.
- Land area
- 23 sq mi
- People per sq mi
- 334
- Forecast point
- 41.3123°N, 72.3057°W
How well can the network see Old Lyme?
The nearest Doppler radar is KOKX (New York City, NY), to the SW. Its lowest scan passes about 2,900 ft above Old Lyme. Close enough to see rotation in the low part of a storm, where tornadoes form. Old Lyme is closer to its radar than 52% of US cities.
The closest weather station is KSNC (Chester Arpt). Representative on most days, though a thunderstorm can hit one and miss the other.
Forecasts near Old Lyme
- Old Saybrook, CT4 mi
- East Lyme, CT5 mi
- Essex, CT6 mi
- Waterford, CT9 mi
- Westbrook, CT9 mi
- Deep River, CT10 mi
- New London, CT11 mi
- Chester, CT12 mi
Elsewhere in Connecticut
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