Winterstown, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Winterstown, a borough in York County, Pennsylvania.
This Afternoon
70°F
Mostly Sunny
Mostly sunny, with a high near 70. South wind around 7 mph.
7-day forecast for Winterstown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 70°F | Mostly Sunny | 7 mph S | 2% |
| Tonight | 52°F | Mostly Clear | 6 mph S | 2% |
| Wednesday | 73°F | Mostly Sunny | 5 to 12 mph S | 2% |
| Wednesday Night | 60°F | Mostly Cloudy then Chance Rain Showers | 12 mph S | 46% |
| Thursday | 72°F | Rain Showers | 7 to 13 mph S | 78% |
| Thursday Night | 60°F | Rain Showers Likely | 2 to 6 mph SW | 65% |
| Friday | 68°F | Rain Showers Likely | 5 mph NW | 65% |
| Friday Night | 49°F | Rain Showers Likely | 2 to 6 mph NW | 57% |
| Saturday | 62°F | Mostly Sunny then Slight Chance Rain Showers | 7 to 12 mph NW | 15% |
| Saturday Night | 40°F | Slight Chance Rain Showers then Partly Cloudy | 9 mph NW | 15% |
| Sunday | 58°F | Mostly Sunny | 7 to 10 mph W | 7% |
| Sunday Night | 39°F | Slight Chance Rain Showers | 7 to 10 mph W | 22% |
| Monday | 58°F | Slight Chance Rain Showers | 12 to 16 mph NW | 22% |
| Monday Night | 39°F | Slight Chance Rain Showers | 7 to 10 mph W | 18% |
Forecast source: National Weather Service (api.weather.gov) for Winterstown (39.841, -76.617). Updated through the day.
Growing snapshot for Winterstown
Last spring frost
Apr 26
First fall frost
Oct 19
Growing season
177 days
Hardiness zone
7a
More local growing data for Winterstown: nearby ZIP 17313 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
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Dillsburg
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Felton
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Grantley
Hallam
Hanover
Jacobus
Jefferson
Lewisberry
Loganville
Manchester
Mount Royal
Mount Wolf
New Freedom
New Market
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North York
Parkville
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Pleasureville
Climate data from the nearest NOAA station, York 3 Ssw Pump Stn, Pa (5.4 mi from Winterstown). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.