Penn Wynne, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Penn Wynne, a community in Montgomery County, Pennsylvania.
Today
77°F
Partly Sunny
Partly sunny, with a high near 77. Northeast wind 5 to 10 mph.
7-day forecast for Penn Wynne
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 77°F | Partly Sunny | 5 to 10 mph NE | 2% |
| Tonight | 61°F | Mostly Cloudy | 5 to 10 mph E | 11% |
| Sunday | 76°F | Rain Showers Likely | 5 to 10 mph S | 64% |
| Sunday Night | 60°F | Showers And Thunderstorms Likely | 5 to 10 mph W | 74% |
| Monday | 69°F | Chance Rain Showers | 10 mph NE | 39% |
| Monday Night | 54°F | Chance Rain Showers | 5 to 10 mph NE | 35% |
| Tuesday | 64°F | Chance Rain Showers | 10 mph NE | 42% |
| Tuesday Night | 53°F | Chance Rain Showers | 10 to 15 mph NE | 40% |
| Wednesday | 63°F | Chance Rain Showers | 15 mph NE | 31% |
| Wednesday Night | 53°F | Chance Rain Showers | 15 mph NE | 33% |
| Thursday | 62°F | Chance Rain Showers | 15 mph NE | 34% |
| Thursday Night | 52°F | Chance Rain Showers | 10 to 15 mph N | 34% |
| Friday | 66°F | Chance Rain Showers | 10 mph N | 29% |
| Friday Night | 52°F | Chance Rain Showers | 5 to 10 mph N | 25% |
Forecast source: National Weather Service (api.weather.gov) for Penn Wynne (39.987, -75.271). Updated through the day.
Growing snapshot for Penn Wynne
Last spring frost
Mar 30
First fall frost
Nov 17
Growing season
232 days
Hardiness zone
7b
More local growing data for Penn Wynne: nearby ZIP 19096 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
Ambler
Arcadia University
Audubon
Bala Cynwyd
Blue Bell
Bridgeport
Bryn Athyn
Cheltenham Village
Collegeville
Conshohocken
Eagleville
East Greenville
Elkins Park
Evansburg
Flourtown
Fort Washington
Gilbertsville
Glenside
Green Lane
Halfway House
Harleysville
Hatboro
Hatfield
Horsham
Jenkintown
Kenilworth
King of Prussia
Kulpsville
Lansdale
Maple Glen
Climate data from the nearest NOAA station, Phila Franklin Inst, Pa (6 mi from Penn Wynne). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.