Yorklyn, PA Weather & Growing Conditions
Overnight
55°F
Partly Cloudy
Partly cloudy, with a low around 55. Northeast wind around 8 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 55°F | Partly Cloudy | 8 mph NE | 0% |
| Saturday | 75°F | Mostly Sunny | 6 mph E | 3% |
| Saturday Night | 63°F | Mostly Cloudy then Chance Rain Showers | 6 to 14 mph SE | 26% |
| Sunday | 77°F | Showers And Thunderstorms | 8 to 14 mph S | 87% |
| Sunday Night | 61°F | Showers And Thunderstorms | 7 to 12 mph NW | 87% |
| Monday | 69°F | Chance Rain Showers | 12 mph NE | 39% |
| Monday Night | 57°F | Chance Rain Showers | 9 to 15 mph NE | 43% |
| Tuesday | 62°F | Rain Showers Likely | 15 mph NE | 58% |
| Tuesday Night | 52°F | Rain Showers Likely | 14 to 17 mph NE | 58% |
| Wednesday | 60°F | Chance Rain Showers | 13 to 16 mph NE | 47% |
| Wednesday Night | 52°F | Chance Showers And Thunderstorms | 13 to 16 mph NE | 48% |
| Thursday | 61°F | Chance Showers And Thunderstorms | 10 to 15 mph NE | 46% |
| Thursday Night | 53°F | Chance Showers And Thunderstorms | 9 mph N | 39% |
| Friday | 66°F | Chance Rain Showers | 10 mph N | 25% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Yorklyn, PA
Last spring frost
Apr 26
First fall frost
Oct 19
Growing season
177 days
Hardiness zone
7a
Explore more for Yorklyn, PA: full frost dates · planting calendar · Pennsylvania frost dates
Climate data from the nearest NOAA station, York 3 Ssw Pump Stn, Pa (8.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.