Mount Penn, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mount Penn, a borough in Berks County, Pennsylvania.
This Afternoon
70°F
Mostly Sunny
Mostly sunny, with a high near 70. South wind around 5 mph.
7-day forecast for Mount Penn
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 70°F | Mostly Sunny | 5 mph S | 2% |
| Tonight | 49°F | Areas Of Fog | 0 to 5 mph SE | 2% |
| Wednesday | 73°F | Patchy Fog then Partly Sunny | 0 to 10 mph S | 2% |
| Wednesday Night | 58°F | Mostly Cloudy then Slight Chance Light Rain | 5 mph S | 16% |
| Thursday | 72°F | Light Rain Likely | 5 to 10 mph S | 70% |
| Thursday Night | 59°F | Light Rain Likely | 0 to 5 mph SW | 70% |
| Friday | 70°F | Light Rain Likely | 0 to 5 mph SW | 70% |
| Friday Night | 51°F | Light Rain Likely | 0 mph | 61% |
| Saturday | 66°F | Slight Chance Light Rain then Mostly Sunny | 0 to 5 mph NW | 15% |
| Saturday Night | 43°F | Partly Cloudy | 5 mph NW | 14% |
| Sunday | 61°F | Mostly Sunny | 5 mph NW | 10% |
| Sunday Night | 42°F | Partly Cloudy then Chance Light Rain | 0 to 5 mph W | 27% |
| Monday | 58°F | Chance Light Rain | 5 to 10 mph NW | 29% |
| Monday Night | 40°F | Chance Light Rain | 5 to 10 mph W | 29% |
Forecast source: National Weather Service (api.weather.gov) for Mount Penn (40.329, -75.890). Updated through the day.
Growing snapshot for Mount Penn
Last spring frost
Apr 14
First fall frost
Oct 29
Growing season
197 days
Hardiness zone
7a
More local growing data for Mount Penn: nearby ZIP 19602 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Reading Spaatz Fld, Pa (3.8 mi from Mount Penn). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.