South Pottstown, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for South Pottstown, a community in Chester County, Pennsylvania.
Today
74°F
Mostly Sunny
Mostly sunny, with a high near 74. South wind 0 to 10 mph.
7-day forecast for South Pottstown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 74°F | Mostly Sunny | 0 to 10 mph S | 2% |
| Tonight | 57°F | Mostly Cloudy | 0 to 5 mph SE | 5% |
| Thursday | 72°F | Light Rain Likely | 5 to 10 mph S | 63% |
| Thursday Night | 59°F | Light Rain | 0 to 5 mph SW | 82% |
| Friday | 70°F | Light Rain | 0 mph | 82% |
| Friday Night | 47°F | Chance Light Rain | 0 mph | 52% |
| Saturday | 64°F | Mostly Sunny | 5 to 10 mph W | 12% |
| Saturday Night | 39°F | Partly Cloudy | 5 mph W | 12% |
| Sunday | 60°F | Mostly Sunny | 5 to 10 mph NW | 4% |
| Sunday Night | 36°F | Mostly Clear | 5 mph W | 4% |
| Monday | 59°F | Sunny then Slight Chance Light Rain | 5 to 15 mph W | 15% |
| Monday Night | 34°F | Slight Chance Light Rain then Mostly Clear | 5 mph W | 15% |
| Tuesday | 63°F | Sunny | 5 to 10 mph W | 4% |
| Tuesday Night | 36°F | Mostly Clear | 5 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov) for South Pottstown (40.236, -75.663). Updated through the day.
Growing snapshot for South Pottstown
Last spring frost
Apr 11
First fall frost
Nov 1
Growing season
205 days
Hardiness zone
7a
More local growing data for South Pottstown: nearby ZIP 19465 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Glenmoore, Pa (7.4 mi from South Pottstown). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.