Stewartstown, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Stewartstown, a borough in York County, Pennsylvania.
Overnight
60°F
Mostly Cloudy
Mostly cloudy, with a low around 60. Northeast wind around 2 mph.
7-day forecast for Stewartstown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 60°F | Mostly Cloudy | 2 mph NE | 0% |
| Tuesday | 83°F | Mostly Sunny | 2 to 6 mph E | 0% |
| Tuesday Night | 65°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 5 mph SE | 17% |
| Wednesday | 82°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 3 to 7 mph SE | 73% |
| Wednesday Night | 69°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 6 mph S | 63% |
| Thursday | 87°F | Partly Sunny then Showers And Thunderstorms Likely | 6 to 9 mph S | 55% |
| Thursday Night | 69°F | Showers And Thunderstorms Likely | 3 to 8 mph SW | 55% |
| Friday | 87°F | Mostly Sunny then Showers And Thunderstorms Likely | 3 to 7 mph SW | 57% |
| Friday Night | 68°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 2 to 6 mph SW | 57% |
| Saturday | 85°F | Partly Sunny then Chance Showers And Thunderstorms | 3 to 7 mph W | 48% |
| Saturday Night | 67°F | Chance Showers And Thunderstorms | 5 mph SW | 48% |
| Sunday | 86°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 6 mph W | 15% |
| Sunday Night | 69°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 mph SW | 15% |
| Monday | 88°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 9 mph W | 22% |
Forecast source: National Weather Service (api.weather.gov) for Stewartstown (39.753, -76.592). Updated through the day.
Growing snapshot for Stewartstown
Last spring frost
Apr 19
First fall frost
Oct 25
Growing season
188 days
Hardiness zone
7a
More local growing data for Stewartstown: nearby ZIP 17363 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
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North York
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Climate data from the nearest NOAA station, Millers 4 Ne, Md (12 mi from Stewartstown). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.