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 | 60°F | Partly Cloudy | 1 to 5 mph S | 2% |
| Wednesday | 82°F | Mostly Sunny | 0 to 6 mph SW | 3% |
| Wednesday Night | 66°F | Partly Cloudy | 6 mph S | 12% |
| Thursday | 85°F | Chance Rain Showers | 3 to 9 mph S | 43% |
| Thursday Night | 70°F | Chance Showers And Thunderstorms | 5 to 8 mph S | 54% |
| 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 8 mph SW | 45% |
| Saturday | 86°F | Partly Sunny then Chance Rain Showers | 2 to 7 mph W | 31% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms | 1 to 6 mph SW | 41% |
| Sunday | 86°F | Mostly Sunny then Slight Chance Rain Showers | 1 to 8 mph W | 15% |
| Sunday Night | 68°F | Slight Chance Rain Showers then Partly Cloudy | 3 to 7 mph SW | 19% |
| Monday | 87°F | Sunny | 2 to 10 mph SW | 13% |
| Monday Night | 67°F | Partly Cloudy | 9 mph W | 15% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Crystal Lake, CT
Last spring frost
May 7
First fall frost
Oct 12
Growing season
159 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, Staffordville, Ct (11.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.