Chesterbrook, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Chesterbrook, a community in Chester County, Pennsylvania.
Overnight
63°F
Mostly Cloudy
Mostly cloudy, with a low around 63. North wind around 0 mph.
7-day forecast for Chesterbrook
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 63°F | Mostly Cloudy | 0 mph | 0% |
| Tuesday | 86°F | Mostly Sunny | 0 to 5 mph NE | 0% |
| Tuesday Night | 66°F | Mostly Cloudy | 0 mph | 7% |
| Wednesday | 85°F | Chance Showers And Thunderstorms | 0 to 5 mph E | 77% |
| Wednesday Night | 72°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 0 to 5 mph S | 62% |
| Thursday | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 to 10 mph S | 28% |
| Thursday Night | 73°F | Chance Showers And Thunderstorms | 0 to 10 mph SW | 38% |
| Friday | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 mph SW | 43% |
| Friday Night | 71°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 44% |
| Saturday | 88°F | Partly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph W | 39% |
| Saturday Night | 70°F | Chance Showers And Thunderstorms | 0 to 5 mph W | 39% |
| Sunday | 89°F | Mostly Sunny | 0 to 5 mph W | 14% |
| Sunday Night | 72°F | Partly Cloudy | 0 to 5 mph SW | 14% |
| Monday | 91°F | Sunny | 0 to 10 mph W | 11% |
Forecast source: National Weather Service (api.weather.gov) for Chesterbrook (40.070, -75.455). Updated through the day.
Growing snapshot for Chesterbrook
Last spring frost
Apr 18
First fall frost
Oct 27
Growing season
192 days
Hardiness zone
7a
More local growing data for Chesterbrook: nearby ZIP 19312 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Phoenixville 1 E, Pa (6.5 mi from Chesterbrook). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.