Knollcrest, CT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Knollcrest, a community in Fairfield County, Connecticut.
Today
81°F
Sunny
Sunny, with a high near 81. West wind around 3 mph.
7-day forecast for Knollcrest
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 81°F | Sunny | 3 mph W | 0% |
| Tonight | 61°F | Mostly Cloudy | 2 mph SW | 0% |
| Wednesday | 81°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 5 mph SW | 18% |
| Wednesday Night | 67°F | Slight Chance Showers And Thunderstorms | 3 mph S | 24% |
| Thursday | 85°F | Showers And Thunderstorms Likely | 2 to 7 mph SW | 69% |
| Thursday Night | 69°F | Showers And Thunderstorms Likely then Partly Cloudy | 5 mph SW | 60% |
| Friday | 86°F | Mostly Sunny then Chance Showers And Thunderstorms | 2 to 6 mph SW | 49% |
| Friday Night | 68°F | Chance Showers And Thunderstorms | 3 mph W | 45% |
| Saturday | 84°F | Partly Sunny then Chance Showers And Thunderstorms | 1 to 7 mph W | 40% |
| Saturday Night | 67°F | Chance Showers And Thunderstorms | 3 mph W | 40% |
| Sunday | 85°F | Mostly Sunny | 2 to 6 mph W | 11% |
| Sunday Night | 68°F | Mostly Clear | 5 mph SW | 11% |
| Monday | 86°F | Sunny then Slight Chance Showers And Thunderstorms | 2 to 8 mph W | 19% |
| Monday Night | 66°F | Slight Chance Showers And Thunderstorms | 3 to 7 mph W | 19% |
Forecast source: National Weather Service (api.weather.gov) for Knollcrest (41.501, -73.467). Updated through the day.
Growing snapshot for Knollcrest
Last spring frost
Apr 20
First fall frost
Oct 20
Growing season
181 days
Hardiness zone
6b
More local growing data for Knollcrest: nearby ZIP 06812 weather · frost dates · planting calendar · Connecticut frost dates
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Darien Downtown
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Climate data from the nearest NOAA station, Danbury, Ct (6.5 mi from Knollcrest). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.