Crystal Lake, CT Weather & Growing Conditions
Today
82°F
Sunny
Sunny, with a high near 82. West wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Sunny | 5 mph W | 0% |
| Tonight | 59°F | Partly Cloudy | 1 to 5 mph SW | 2% |
| Wednesday | 81°F | Mostly Sunny | 0 to 6 mph W | 3% |
| Wednesday Night | 65°F | Mostly Cloudy | 2 to 6 mph S | 12% |
| Thursday | 85°F | Chance Rain Showers | 2 to 9 mph SW | 43% |
| Thursday Night | 70°F | Chance Showers And Thunderstorms | 5 to 8 mph SW | 52% |
| Friday | 87°F | Mostly Sunny then Chance Rain Showers | 5 to 8 mph SW | 33% |
| Friday Night | 69°F | Chance Showers And Thunderstorms | 2 to 7 mph W | 45% |
| Saturday | 85°F | Partly Sunny then Chance Rain Showers | 2 to 7 mph W | 32% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms | 5 mph SW | 43% |
| Sunday | 86°F | Mostly Sunny then Slight Chance Rain Showers | 2 to 7 mph W | 16% |
| Sunday Night | 68°F | Slight Chance Rain Showers then Partly Cloudy | 6 mph SW | 20% |
| Monday | 86°F | Sunny | 3 to 10 mph W | 13% |
| Monday Night | 66°F | Partly Cloudy | 8 mph W | 15% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Crystal Lake, CT
Last spring frost
Apr 19
First fall frost
Oct 22
Growing season
186 days
Hardiness zone
6b
Explore more for Crystal Lake, CT: full frost dates · planting calendar · Connecticut frost dates
Climate data from the nearest NOAA station, Storrs, Ct (9.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.