Knollcrest, CT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Knollcrest, a community in Fairfield County, Connecticut.
This Afternoon
68°F
Partly Sunny
Partly sunny. High near 68, with temperatures falling to around 63 in the afternoon. Southwest wind around 7 mph.
7-day forecast for Knollcrest
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Partly Sunny | 7 mph SW | 0% |
| Tonight | 49°F | Partly Cloudy then Patchy Fog | 3 mph SW | 3% |
| Wednesday | 72°F | Sunny | 2 to 10 mph SW | 3% |
| Wednesday Night | 54°F | Partly Cloudy | 5 mph S | 2% |
| Thursday | 69°F | Rain Showers Likely | 6 to 9 mph S | 58% |
| Thursday Night | 59°F | Rain Showers | 2 to 6 mph S | 82% |
| Friday | 67°F | Rain Showers | 5 mph SW | 82% |
| Friday Night | 53°F | Showers And Thunderstorms then Light Rain Likely | 3 mph NW | 79% |
| Saturday | 64°F | Chance Light Rain | 7 mph NW | 51% |
| Saturday Night | 42°F | Slight Chance Light Rain | 6 mph NW | 24% |
| Sunday | 59°F | Slight Chance Light Rain then Mostly Sunny | 7 mph NW | 23% |
| Sunday Night | 38°F | Partly Cloudy then Slight Chance Light Rain | 6 mph W | 15% |
| Monday | 57°F | Chance Light Rain | 6 to 12 mph NW | 26% |
| Monday Night | 37°F | Chance Light Rain | 7 mph W | 26% |
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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Coleytown
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Darien Downtown
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Fairfield University
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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 Nov 3, 2026.