Pottstown, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Pottstown, a borough in Montgomery County, Pennsylvania.
Tonight
55°F
Partly Cloudy
Partly cloudy, with a low around 55. North wind around 5 mph.
7-day forecast for Pottstown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 55°F | Partly Cloudy | 5 mph N | 0% |
| Saturday | 74°F | Mostly Sunny | 5 mph NE | 2% |
| Saturday Night | 60°F | Patchy Fog | 5 mph SE | 35% |
| Sunday | 74°F | Showers And Thunderstorms | 5 to 10 mph S | 86% |
| Sunday Night | 60°F | Patchy Fog | 0 to 5 mph W | 86% |
| Monday | 68°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 | 63°F | Chance Rain Showers | 10 to 15 mph NE | 37% |
| Wednesday Night | 51°F | Chance Showers And Thunderstorms | 10 mph NE | 39% |
| Thursday | 63°F | Chance Showers And Thunderstorms | 10 mph NE | 36% |
| Thursday Night | 51°F | Chance Showers And Thunderstorms | 5 to 10 mph NE | 32% |
| Friday | 69°F | Slight Chance Rain Showers | 5 to 10 mph N | 22% |
Forecast source: National Weather Service (api.weather.gov) for Pottstown (40.251, -75.645). Updated through the day.
Growing snapshot for Pottstown
Last spring frost
Apr 20
First fall frost
Oct 23
Growing season
186 days
Hardiness zone
7a
More local growing data for Pottstown: nearby ZIP 19464 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Pottstown Limerick Ap, Pa (3.4 mi from Pottstown). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.