Pottstown, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Pottstown, a borough in Montgomery County, Pennsylvania.
This Afternoon
71°F
Mostly Sunny
Mostly sunny, with a high near 71. South wind around 5 mph.
7-day forecast for Pottstown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 71°F | Mostly Sunny | 5 mph S | 2% |
| Tonight | 47°F | Areas Of Fog | 0 mph | 2% |
| Wednesday | 74°F | Areas Of Fog then Partly Sunny | 0 to 5 mph S | 2% |
| Wednesday Night | 56°F | Mostly Cloudy | 0 to 5 mph S | 8% |
| Thursday | 73°F | Light Rain Likely | 5 mph S | 60% |
| Thursday Night | 59°F | Light Rain Likely | 0 to 5 mph SW | 71% |
| Friday | 71°F | Light Rain Likely | 0 to 5 mph SW | 71% |
| Friday Night | 49°F | Light Rain Likely | 0 mph | 70% |
| Saturday | 67°F | Slight Chance Light Rain | 0 to 5 mph NW | 18% |
| Saturday Night | 41°F | Slight Chance Light Rain then Partly Cloudy | 0 to 5 mph NW | 16% |
| Sunday | 62°F | Mostly Sunny | 0 to 5 mph NW | 12% |
| Sunday Night | 40°F | Chance Light Rain | 0 to 5 mph W | 26% |
| Monday | 59°F | Chance Light Rain | 5 to 10 mph NW | 32% |
| Monday Night | 38°F | Chance Light Rain | 5 mph W | 32% |
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 Nov 3, 2026.