New London County weather, town by town
34 places in New London County, Connecticut, each with its own live forecast and radar, and where a station sits close enough, measured weather records.
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New London County Weather Facts
New London County has 34 places on myweatherrock (21 towns, 11 census-designated places, 2 boroughs), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 102°F at Norwich Public Utility Plt on August 10, 2001. The coldest night is -21°F at Norwich Public Utility Plt on January 21, 1994. The wettest day brought 7.43 inches of rain at Groton on September 21, 1961. The biggest single-day snow measured 25.98 inches at Storrs on February 9, 2013. Those are station measurements from NOAA's daily records, 1948 to 2026, not official state records. By area the largest place is North Stonington, about 54 square miles.
About New London County weather
The map on the Now tab shows every New London County town's current temperature from our own server, one dot per town. Tap any dot, or type a town above, for that town's full forecast.
What the weather is usually like
Across the 34 New London County towns with station normals, the warmest month is July, when the day usually reaches 82°F, and the coldest is January, when the night usually falls to 21°F. May is the wettest, with rain on about 12 days. July afternoons run from about 80°F in East Lyme to 84°F in Baltic. January nights run from about 18°F in Lebanon to 23°F in Conning Towers-Nautilus Park.
Means of the 1991 to 2020 station normals serving these towns, as published by NOAA; each town's page carries its own.
Where these numbers come from
- Current conditions and forecast: NOAA forecast grids decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
- Records: computed by myweatherrock from NOAA GHCN-Daily station records at the stations serving these towns. Measurements, not estimates.
- Warnings and alerts: the National Weather Service, passed through unchanged.
New London County weather records
Measured at the NOAA stations serving these towns, daily records 1948 to 2026. Station extremes, not official records.
Common questions about New London County weather
- What is the hottest temperature recorded at a New London County station?
- 102°F at Norwich Public Utility Plt on August 10, 2001, in the NOAA daily station records myweatherrock holds (1948 to 2026).
- What is the coldest temperature recorded at a New London County station?
- -21°F at Norwich Public Utility Plt on January 21, 1994.
- What is the most rain a New London County station has measured in one day?
- 7.43 inches at Groton on September 21, 1961.
- What is the biggest one-day snowfall at a New London County station?
- 25.98 inches at Storrs on February 9, 2013.
- How many New London County towns have a weather page here?
- 34: 21 towns, 11 census-designated places, 2 boroughs. Each page carries current conditions, the hourly timeline, the ten day outlook, radar, and where a station sits close enough, measured records.
- Where does the New London County forecast come from?
- NOAA forecast grids (the National Weather Service digital forecast, the National Blend of Models, HRRR and GFS) decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
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