Pennsburg, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Pennsburg, a borough in Montgomery County, Pennsylvania.
Tonight
54°F
Partly Cloudy
Partly cloudy, with a low around 54. North wind around 5 mph.
7-day forecast for Pennsburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 54°F | Partly Cloudy | 5 mph N | 0% |
| Saturday | 72°F | Mostly Sunny | 5 mph E | 1% |
| Saturday Night | 59°F | Patchy Fog | 5 mph SE | 40% |
| Sunday | 72°F | Showers And Thunderstorms | 5 to 10 mph S | 89% |
| Sunday Night | 59°F | Patchy Fog | 0 to 10 mph NW | 88% |
| Monday | 67°F | Chance Rain Showers | 10 mph NE | 36% |
| Monday Night | 52°F | Chance Rain Showers | 5 to 10 mph NE | 30% |
| Tuesday | 63°F | Chance Rain Showers | 10 to 15 mph NE | 37% |
| Tuesday Night | 50°F | Chance Rain Showers | 10 to 15 mph NE | 37% |
| Wednesday | 61°F | Chance Rain Showers | 15 mph NE | 34% |
| Wednesday Night | 49°F | Chance Showers And Thunderstorms | 10 to 15 mph NE | 37% |
| Thursday | 62°F | Chance Showers And Thunderstorms | 10 to 15 mph NE | 36% |
| Thursday Night | 50°F | Chance Showers And Thunderstorms | 5 to 10 mph NE | 32% |
| Friday | 68°F | Slight Chance Rain Showers | 10 mph N | 21% |
Forecast source: National Weather Service (api.weather.gov) for Pennsburg (40.394, -75.496). Updated through the day.
Growing snapshot for Pennsburg
Last spring frost
Apr 26
First fall frost
Oct 17
Growing season
175 days
Hardiness zone
7a
More local growing data for Pennsburg: nearby ZIP 18073 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
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Climate data from the nearest NOAA station, Sellersville, Pa (8.8 mi from Pennsburg). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.