Stewartstown, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Stewartstown, a borough in York County, Pennsylvania.
Overnight
53°F
Mostly Clear
Mostly clear, with a low around 53. South wind around 5 mph.
7-day forecast for Stewartstown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 53°F | Mostly Clear | 5 mph S | 0% |
| Wednesday | 72°F | Mostly Sunny | 2 to 12 mph S | 1% |
| Wednesday Night | 59°F | Mostly Cloudy then Slight Chance Light Rain | 8 to 14 mph S | 18% |
| Thursday | 71°F | Light Rain Likely | 8 to 14 mph S | 65% |
| Thursday Night | 59°F | Light Rain Likely | 3 to 7 mph SW | 57% |
| Friday | 68°F | Light Rain Likely | 5 mph N | 57% |
| Friday Night | 49°F | Chance Light Rain then Partly Cloudy | 2 to 8 mph NW | 32% |
| Saturday | 61°F | Mostly Sunny | 9 to 13 mph NW | 8% |
| Saturday Night | 42°F | Partly Cloudy | 13 mph W | 8% |
| Sunday | 58°F | Mostly Sunny | 9 to 14 mph NW | 3% |
| Sunday Night | 40°F | Mostly Clear | 8 to 12 mph W | 3% |
| Monday | 58°F | Sunny | 13 to 16 mph W | 4% |
| Monday Night | 39°F | Mostly Clear | 6 to 10 mph W | 4% |
| Tuesday | 61°F | Sunny | 8 to 14 mph W | 1% |
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
Cross Roads
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Grantley
Hallam
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Jacobus
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Loganville
Manchester
Mount Royal
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New Market
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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 Nov 4, 2026.