Kennett Square, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Kennett Square, a borough in Chester County, Pennsylvania.
Today
83°F
Mostly Sunny
Mostly sunny, with a high near 83. Northeast wind 0 to 5 mph.
7-day forecast for Kennett Square
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Mostly Sunny | 0 to 5 mph NE | 0% |
| Tonight | 66°F | Mostly Cloudy | 0 mph | 11% |
| Wednesday | 82°F | Showers And Thunderstorms Likely | 0 to 5 mph SE | 82% |
| Wednesday Night | 70°F | Chance Showers And Thunderstorms | 5 mph S | 53% |
| Thursday | 87°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 23% |
| Thursday Night | 72°F | Chance Showers And Thunderstorms | 5 mph SW | 34% |
| Friday | 87°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 mph SW | 41% |
| Friday Night | 70°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 44% |
| Saturday | 85°F | Partly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph W | 39% |
| Saturday Night | 69°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 39% |
| Sunday | 86°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 16% |
| Sunday Night | 70°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SW | 16% |
| Monday | 88°F | Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph W | 15% |
| Monday Night | 70°F | Slight Chance Showers And Thunderstorms | 5 mph W | 18% |
Forecast source: National Weather Service (api.weather.gov) for Kennett Square (39.844, -75.711). Updated through the day.
Growing snapshot for Kennett Square
Last spring frost
Apr 19
First fall frost
Oct 26
Growing season
189 days
Hardiness zone
7a
More local growing data for Kennett Square: nearby ZIP 19348 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Avondale 2 N, Pa (3.5 mi from Kennett Square). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.