Yorklyn, PA Weather & Growing Conditions
This Afternoon
70°F
Mostly Sunny
Mostly sunny, with a high near 70. South wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 70°F | Mostly Sunny | 6 mph S | 2% |
| Tonight | 52°F | Mostly Clear | 7 mph S | 2% |
| Wednesday | 73°F | Mostly Sunny | 5 to 12 mph S | 2% |
| Wednesday Night | 61°F | Mostly Cloudy then Chance Rain Showers | 14 mph S | 54% |
| Thursday | 73°F | Rain Showers | 8 to 14 mph S | 81% |
| Thursday Night | 59°F | Rain Showers Likely | 3 to 8 mph SW | 69% |
| Friday | 68°F | Rain Showers Likely | 3 mph NW | 66% |
| Friday Night | 50°F | Chance Rain Showers | 2 to 7 mph NW | 54% |
| Saturday | 62°F | Slight Chance Rain Showers | 8 to 12 mph NW | 17% |
| Saturday Night | 43°F | Slight Chance Rain Showers then Partly Cloudy | 8 to 12 mph NW | 17% |
| Sunday | 59°F | Mostly Sunny | 9 mph W | 8% |
| Sunday Night | 42°F | Slight Chance Rain Showers | 8 to 12 mph W | 22% |
| Monday | 58°F | Slight Chance Rain Showers | 12 to 16 mph W | 22% |
| Monday Night | 40°F | Slight Chance Rain Showers | 9 to 13 mph W | 19% |
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 Nov 3, 2026.