Chesterbrook, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Chesterbrook, a community in Chester County, Pennsylvania.
This Afternoon
70°F
Mostly Sunny
Mostly sunny, with a high near 70. South wind around 5 mph.
7-day forecast for Chesterbrook
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 70°F | Mostly Sunny | 5 mph S | 2% |
| Tonight | 48°F | Patchy Fog | 0 to 5 mph S | 2% |
| Wednesday | 74°F | Patchy Fog then Mostly Sunny | 0 to 5 mph S | 2% |
| Wednesday Night | 57°F | Mostly Cloudy | 5 mph S | 3% |
| Thursday | 73°F | Chance Light Rain | 5 to 10 mph S | 44% |
| Thursday Night | 60°F | Chance Light Rain then Chance T-storms | 0 to 5 mph SW | 69% |
| Friday | 70°F | Light Rain | 0 to 5 mph SW | 75% |
| Friday Night | 51°F | Light Rain | 0 mph | 75% |
| Saturday | 66°F | Slight Chance Light Rain | 5 mph NW | 23% |
| Saturday Night | 43°F | Slight Chance Light Rain then Partly Cloudy | 5 mph NW | 16% |
| Sunday | 62°F | Mostly Sunny | 5 mph NW | 11% |
| Sunday Night | 40°F | Slight Chance Light Rain | 0 to 5 mph W | 24% |
| Monday | 59°F | Chance Light Rain | 5 to 10 mph NW | 33% |
| Monday Night | 39°F | Chance Light Rain | 5 to 10 mph W | 33% |
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 Nov 4, 2026.