Old Mystic stays cool in summer
Old Mystic has chilly winters and pleasant summers. A typical July afternoon reaches 82°, a January night drops to 22°, and about 25 inches of snow falls in a normal winter.
Getting the latest forecast from the National Weather Service…
What stands out about Old Mystic’s weather
Read from 30 years of NOAA records. Each one opens the full story on the Climate page.
Where today sits in Old Mystic’s year
Typical highs and lows month by month, from 30 years of NOAA records.
Weather talk
Road reports, first frosts and storm memories from neighbors in Old Mystic.
Your answer becomes a post in Town Square.
Forecast, conditions and alerts: National Weather Service. Climate: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000. Temperatures and rainfall come from NOAA’s gridded normals for Old Mystic itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Groton, CT (4 mi). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.