Kennett Square, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Kennett Square, a borough in Chester County, Pennsylvania.
Tonight
58°F
Partly Cloudy
Partly cloudy, with a low around 58. North wind around 5 mph.
7-day forecast for Kennett Square
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 58°F | Partly Cloudy | 5 mph N | 0% |
| Saturday | 74°F | Partly Sunny | 5 to 10 mph E | 2% |
| Saturday Night | 62°F | Patchy Fog | 5 mph SE | 19% |
| Sunday | 76°F | Showers And Thunderstorms | 5 to 10 mph S | 78% |
| Sunday Night | 61°F | Showers And Thunderstorms | 5 to 10 mph W | 83% |
| Monday | 69°F | Chance Rain Showers | 5 to 10 mph NE | 41% |
| Monday Night | 56°F | Chance Rain Showers | 5 to 10 mph NE | 33% |
| Tuesday | 63°F | Chance Rain Showers | 10 mph NE | 40% |
| Tuesday Night | 52°F | Chance Rain Showers | 10 mph NE | 40% |
| Wednesday | 61°F | Chance Rain Showers | 10 to 15 mph NE | 39% |
| Wednesday Night | 52°F | Chance Showers And Thunderstorms | 10 mph NE | 39% |
| Thursday | 63°F | Chance Showers And Thunderstorms | 10 mph NE | 37% |
| Thursday Night | 52°F | Chance Showers And Thunderstorms | 5 to 10 mph NE | 34% |
| Friday | 66°F | Chance Rain Showers | 10 mph N | 28% |
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 Sep 19, 2026.