Weather for Old Lyme, Connecticut
Current Weather
Humidity: 37%
Heat Index: 26.6°F
Feels Like: 21.2°F
Wind: ENE 3.1 mph
Wind Gusts: 9 mph
Wind Chill: 21.2°F
Dew Point: 21.2°F
Chance of Precipitation: 0%
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 10 mi
UV Index: 0
Five Day Weather Forecast
Fri
H: 32°F
L: 16°F
Sat
H: 30°F
L: 21°F
Sun
H: 37°F
L: 24°F
Mon
H: 44°F
L: 31°F
Tue
H: 30°F
L: 24°F
Air Quality
Nitrogen Dioxide: 8.35 μg/m3
Sulphur Dioxide: 2.45 μg/m3
Ozone: 69 μg/m3
Astronomical
Sun Transit: 11:50 AM
Sunset: 4:27 PM
Daylight: 9 hrs 13 mins
Moon Transit: 12:00 AM
Moonset: 11:16 PM
Moon Phase: First Quarter
Moon Illumination: 40.5%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM12:00 AM - 12:00 AM
Minor Periods
12:00 AM - 12:00 AM10:34 AM - 12:04 AM
Action Rating: 2 out of 5
Winter Weather Advisory issued December 26 at 2:33AM EST until December 27 at 1:00PM EST by NWS Upton NY
Effective: Fri December 26, 2025, 2:33 AM
Expires: Fri December 26, 2025, 7:00 PM
* WHAT...Snow expected. Total snow accumulations between 3 and 5 inches. * WHERE...Northern Middlesex, Northern New London, Southern Middlesex, and Southern New London Counties. * WHEN...From 7 PM this evening to 1 PM EST Saturday. * IMPACTS...Plan on slippery road conditions.
Slow down and use caution while traveling. Check local Department of Transportation information services for the latest road conditions.
Winter Storm Warning issued December 26 at 1:04PM EST until December 27 at 1:00PM EST by NWS Upton NY
Effective: Fri December 26, 2025, 1:04 PM
Expires: Sat December 27, 2025, 1:00 PM
* WHAT...Heavy snow expected. Total snow accumulations between 5 and 8 inches. * WHERE...Northern Middlesex, Northern New London, Southern Middlesex, and Southern New London Counties. * WHEN...From 7 PM this evening to 1 PM EST Saturday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Visibilities may drop below 1/4 mile due to falling and blowing snow. * ADDITIONAL DETAILS...The period of heaviest snowfall (1-2"/hr) will occur between 6pm and midnight, making travel very difficult.
Persons should consider delaying all travel. If travel is absolutely necessary, drive with extreme caution. Consider taking a winter storm kit along with you, including such items as tire chains, booster cables, flashlight, shovel, blankets and extra clothing. Also take water, a first aid kit, and anything else that would help you survive in case you become stranded.
Winter Storm Warning issued December 26 at 2:33AM EST until December 27 at 1:00PM EST by NWS Upton NY
Effective: Fri December 26, 2025, 2:33 AM
Expires: Fri December 26, 2025, 7:00 PM
* WHAT...Heavy snow expected. Total snow accumulations between 5 and 7 inches. * WHERE...Northern New Haven and Southern New Haven Counties. * WHEN...From 7 PM this evening to 1 PM EST Saturday. * IMPACTS...Travel could be very difficult.
If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Check local Department of Transportation information services for the latest road conditions.
Winter Storm Warning issued December 26 at 1:04PM EST until December 27 at 1:00PM EST by NWS Upton NY
Effective: Fri December 26, 2025, 1:04 PM
Expires: Sat December 27, 2025, 1:00 PM
* WHAT...Heavy snow expected. Total snow accumulations between 6 and 9 inches. * WHERE...Northern New Haven and Southern New Haven Counties. * WHEN...From 7 PM this evening to 1 PM EST Saturday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Visibilities may drop below 1/4 mile due to falling and blowing snow. Travel could be very difficult. The hazardous conditions could impact the Friday evening commute. * ADDITIONAL DETAILS...The period of heaviest snowfall (1-2"/hr) will occur between 6pm and midnight, making travel very difficult.
If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Check local Department of Transportation information services for the latest road conditions. Persons should consider delaying all travel. If travel is absolutely necessary, drive with extreme caution. Consider taking a winter storm kit along with you, including such items as tire chains, booster cables, flashlight, shovel, blankets and extra clothing. Also take water, a first aid kit, and anything else that would help you survive in case you become stranded.
Winter Storm Warning issued December 26 at 2:33AM EST until December 27 at 1:00PM EST by NWS Upton NY
Effective: Fri December 26, 2025, 2:33 AM
Expires: Fri December 26, 2025, 7:00 PM
* WHAT...Heavy snow expected. Total snow accumulations between 5 and 9 inches. * WHERE...Portions of southern Connecticut, northeast New Jersey, and southeast New York. * WHEN...From 4 PM this afternoon to 1 PM EST Saturday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Friday evening commute.
If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Check local Department of Transportation information services for the latest road conditions.
Winter Storm Warning issued December 26 at 2:33AM EST until December 27 at 1:00PM EST by NWS Upton NY
Effective: Fri December 26, 2025, 2:33 AM
Expires: Fri December 26, 2025, 7:00 PM
* WHAT...Heavy snow expected. Total snow accumulations between 5 and 7 inches. * WHERE...Northeast Suffolk and Southeast Suffolk Counties. * WHEN...From 7 PM this evening to 1 PM EST Saturday. * IMPACTS...Travel could be very difficult.
If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Check local Department of Transportation information services for the latest road conditions.
Winter Storm Warning issued December 26 at 1:04PM EST until December 27 at 1:00PM EST by NWS Upton NY
Effective: Fri December 26, 2025, 1:04 PM
Expires: Sat December 27, 2025, 1:00 PM
* WHAT...Heavy snow expected. Total snow accumulations between 6 and 9 inches. * WHERE...Portions of southern Connecticut, northeast New Jersey, and southeast New York. * WHEN...From 4 PM this afternoon to 1 PM EST Saturday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Visibilities may drop below 1/4 mile due to falling and blowing snow. Travel could be very difficult. The hazardous conditions could impact the Friday evening commute. * ADDITIONAL DETAILS...The period of heaviest snowfall (1-2"/hr) will occur between 6pm and midnight, making travel very difficult.
If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Check local Department of Transportation information services for the latest road conditions. Persons should consider delaying all travel. If travel is absolutely necessary, drive with extreme caution. Consider taking a winter storm kit along with you, including such items as tire chains, booster cables, flashlight, shovel, blankets and extra clothing. Also take water, a first aid kit, and anything else that would help you survive in case you become stranded.
Winter Storm Warning issued December 26 at 1:04PM EST until December 27 at 1:00PM EST by NWS Upton NY
Effective: Fri December 26, 2025, 1:04 PM
Expires: Sat December 27, 2025, 1:00 PM
* WHAT...Heavy snow expected. Total snow accumulations between 7 and 10 inches. * WHERE...Northeast Suffolk and Southeast Suffolk Counties. * WHEN...From 7 PM this evening to 1 PM EST Saturday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Visibilities may drop below 1/4 mile due to falling and blowing snow. Travel could be very difficult. The hazardous conditions could impact the Friday evening commute. * ADDITIONAL DETAILS...The period of heaviest snowfall (1-2"/hr) will occur between 6pm and midnight, making travel very difficult.
If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Check local Department of Transportation information services for the latest road conditions. Persons should consider delaying all travel. If travel is absolutely necessary, drive with extreme caution. Consider taking a winter storm kit along with you, including such items as tire chains, booster cables, flashlight, shovel, blankets and extra clothing. Also take water, a first aid kit, and anything else that would help you survive in case you become stranded.
Winter Weather Advisory issued December 26 at 1:48AM EST until December 27 at 10:00AM EST by NWS Boston/Norton MA
Effective: Fri December 26, 2025, 1:48 AM
Expires: Fri December 26, 2025, 3:00 PM
* WHAT...Snow expected. Total snow accumulations between 2 and 4 inches. * WHERE...Portions of northern Connecticut, western Massachusetts, and northern and southern Rhode Island. * WHEN...From 7 PM this evening to 10 AM EST Saturday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Friday evening commute.
Slow down and use caution while traveling.
Winter Weather Advisory issued December 26 at 12:50PM EST until December 27 at 10:00AM EST by NWS Boston/Norton MA
Effective: Fri December 26, 2025, 12:50 PM
Expires: Sat December 27, 2025, 5:00 AM
* WHAT...Snow expected. Total snow accumulations between 4 and 6 inches. * WHERE...Portions of northern Connecticut, western Massachusetts, and northern and southern Rhode Island. * WHEN...From 7 PM this evening to 10 AM EST Saturday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Friday evening commute.
Slow down and use caution while traveling.
Winter Weather Advisory issued December 26 at 1:48AM EST until December 27 at 10:00AM EST by NWS Boston/Norton MA
Effective: Fri December 26, 2025, 1:48 AM
Expires: Fri December 26, 2025, 3:00 PM
* WHAT...Snow expected. Total snow accumulations between 4 and 6 inches. * WHERE...In Connecticut, Hartford CT County. In Massachusetts, Western Hampden MA County. * WHEN...From 7 PM this evening to 10 AM EST Saturday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Friday evening commute.
Slow down and use caution while traveling.
Winter Storm Warning issued December 26 at 12:50PM EST until December 27 at 10:00AM EST by NWS Boston/Norton MA
Effective: Fri December 26, 2025, 12:50 PM
Expires: Sat December 27, 2025, 5:00 AM
* WHAT...Heavy snow expected. Total snow accumulations between 5 and 8 inches. * WHERE...In Connecticut, Hartford County. In Massachusetts, Western Hampden County. * WHEN...From 7 PM this evening to 10 AM EST Saturday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Friday evening commute.
If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency.
Weather Forecast
Average Temperature: 23.9°F
Average Humidity: 38%
Wind: 13.2 mph
UV Index: 0.2
Air Quality
Nitrogen Dioxide: 5.07 μg/m3
Sulphur Dioxide: 2.06 μg/m3
Ozone: 75.24 μg/m3
Astronomical
Sun Transit: 11:50 AM
Sunset: 4:27 PM
Daylight: 9 hrs 13 mins
Moon Transit: 12:00 AM
Moonset: 11:16 PM
Moon Phase: First Quarter
Moon Illumination: 40.5%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM12:00 AM - 12:00 AM
Minor Periods
12:00 AM - 12:00 AM10:34 AM - 12:04 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 26.5°F
Average Humidity: 81%
Wind: 15.7 mph
UV Index: 0.3
Air Quality
Nitrogen Dioxide: 8.79 μg/m3
Sulphur Dioxide: 2.4 μg/m3
Ozone: 67.88 μg/m3
Astronomical
Sun Transit: 11:50 AM
Sunset: 4:27 PM
Daylight: 9 hrs 13 mins
Moon Transit: 4:23 AM
Moonset: 12:16 AM
Moon Phase: First Quarter
Moon Illumination: 51.8%
Best Times for Fishing or Hunting
Major Periods
3:53 AM - 6:23 AM3:53 AM - 6:23 AM
Minor Periods
10:55 AM - 12:25 AM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 29.8°F
Average Humidity: 74%
Wind: 10.1 mph
UV Index: 0.3
Air Quality
Nitrogen Dioxide: 29.11 μg/m3
Sulphur Dioxide: 4.61 μg/m3
Ozone: 43.92 μg/m3
Astronomical
Sun Transit: 11:51 AM
Sunset: 4:28 PM
Daylight: 9 hrs 14 mins
Moon Transit: 6:37 PM
Moonset: 12:27 AM
Moon Phase: First Quarter
Moon Illumination: 63.0%
Best Times for Fishing or Hunting
Major Periods
8:09 AM - 10:39 AM6:07 PM - 8:37 PM
Minor Periods
11:18 AM - 12:48 AM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 39.4°F
Average Humidity: 91%
Wind: 25.9 mph
UV Index: 0
Air Quality
Nitrogen Dioxide: 20.16 μg/m3
Sulphur Dioxide: 4.03 μg/m3
Ozone: 47.56 μg/m3
Astronomical
Sun Transit: 11:51 AM
Sunset: 4:29 PM
Daylight: 9 hrs 14 mins
Moon Transit: 7:29 PM
Moonset: 1:40 AM
Moon Phase: First Quarter
Moon Illumination: 73.5%
Best Times for Fishing or Hunting
Major Periods
8:59 AM - 11:29 AM6:59 PM - 9:29 PM
Minor Periods
11:45 AM - 1:15 PM1:10 AM - 2:40 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 27.2°F
Average Humidity: 66%
Wind: 26.8 mph
UV Index: 0
Air Quality
Nitrogen Dioxide: 12.74 μg/m3
Sulphur Dioxide: 4 μg/m3
Ozone: 43.77 μg/m3
Astronomical
Sun Transit: 11:52 AM
Sunset: 4:30 PM
Daylight: 9 hrs 15 mins
Moon Transit: 8:26 PM
Moonset: 2:58 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 82.8%
Best Times for Fishing or Hunting
Major Periods
9:54 AM - 12:24 AM7:56 PM - 10:26 PM
Minor Periods
12:18 AM - 1:48 PM2:28 AM - 3:58 AM
Action Rating: 2 out of 5