Middlesex County weather, town by town
25 places in Middlesex County, Connecticut, each with its own live forecast and radar, and where a station sits close enough, measured weather records.
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Middlesex County Weather Facts
Middlesex County has 25 places on myweatherrock (15 towns, 9 census-designated places, 1 boroughs), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 103°F at Hartford Brainard Fld on August 9, 2001. The coldest night is -24°F at Hartford Brainard Fld on February 16, 1943. The wettest day brought 6.34 inches of rain at Norwich Public Utility Plt on September 2, 2021. The biggest single-day snow measured 24.02 inches at Riverhead Rsch Farm on February 23, 2026. Those are station measurements from NOAA's daily records, 1920 to 2026, not official state records. By area the largest place is East Haddam, about 54 square miles.
About Middlesex County weather
The map on the Now tab shows every Middlesex 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 25 Middlesex County towns with station normals, the warmest month is July, when the day usually reaches 83°F, and the coldest is January, when the night usually falls to 21°F. May is the wettest, with rain on about 13 days. July afternoons run from about 80°F in Deep River Center to 85°F in Cromwell. January nights run from about 19°F in Chester to 23°F in Clinton.
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.
Middlesex County weather records
Measured at the NOAA stations serving these towns, daily records 1920 to 2026. Station extremes, not official records.
Common questions about Middlesex County weather
- What is the hottest temperature recorded at a Middlesex County station?
- 103°F at Hartford Brainard Fld on August 9, 2001, in the NOAA daily station records myweatherrock holds (1920 to 2026).
- What is the coldest temperature recorded at a Middlesex County station?
- -24°F at Hartford Brainard Fld on February 16, 1943.
- What is the most rain a Middlesex County station has measured in one day?
- 6.34 inches at Norwich Public Utility Plt on September 2, 2021.
- What is the biggest one-day snowfall at a Middlesex County station?
- 24.02 inches at Riverhead Rsch Farm on February 23, 2026.
- How many Middlesex County towns have a weather page here?
- 25: 15 towns, 9 census-designated places, 1 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 Middlesex 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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