South Pottstown, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for South Pottstown, a community in Chester County, Pennsylvania.
This Afternoon
83°F
Mostly Sunny
Mostly sunny, with a high near 83. North wind 5 to 10 mph.
7-day forecast for South Pottstown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 83°F | Mostly Sunny | 5 to 10 mph N | 0% |
| Tonight | 55°F | Partly Cloudy | 5 mph N | 0% |
| Saturday | 74°F | Mostly Sunny | 5 mph NE | 2% |
| Saturday Night | 61°F | Patchy Fog | 5 mph SE | 34% |
| Sunday | 74°F | Showers And Thunderstorms | 5 to 10 mph S | 85% |
| Sunday Night | 60°F | Patchy Fog | 0 to 5 mph W | 85% |
| Monday | 69°F | Chance Rain Showers | 5 to 10 mph NE | 38% |
| Monday Night | 53°F | Chance Rain Showers | 5 to 10 mph NE | 32% |
| Tuesday | 64°F | Chance Rain Showers | 10 to 15 mph NE | 39% |
| Tuesday Night | 50°F | Chance Rain Showers | 10 to 15 mph NE | 39% |
| Wednesday | 62°F | Chance Rain Showers | 10 to 15 mph NE | 37% |
| Wednesday Night | 50°F | Chance Showers And Thunderstorms | 10 mph NE | 40% |
| Thursday | 64°F | Chance Showers And Thunderstorms | 10 mph NE | 36% |
| Thursday Night | 51°F | Chance Showers And Thunderstorms | 5 to 10 mph N | 33% |
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
Nearby towns & communities
Atglen
Avondale
Berwyn
Caln
Chadds Ford
Chesterbrook
Christiana
Coatesville
Cochranville
Devon
Downingtown
Eagle
Eagleview
Elverson
Exton
Frazer
Glenmoore
Hamorton
Hayti
Honey Brook
Kennett Square
Kimberton
Lincoln University
Lionville
Little Britain
Malvern
Marshallton
Modena
Nottingham
Oxford
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 Sep 18, 2026.