Stoystown, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Stoystown, a borough in Somerset County, Pennsylvania.
This Afternoon
72°F
Sunny
Sunny, with a high near 72. Southeast wind around 8 mph.
7-day forecast for Stoystown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 72°F | Sunny | 8 mph SE | 1% |
| Tonight | 48°F | Mostly Clear | 6 mph SE | 1% |
| Wednesday | 71°F | Partly Sunny | 3 to 12 mph SE | 2% |
| Wednesday Night | 57°F | Rain Showers | 6 to 10 mph S | 99% |
| Thursday | 67°F | Rain Showers Likely | 5 to 10 mph SW | 68% |
| Thursday Night | 48°F | Mostly Cloudy then Slight Chance Rain Showers | 1 to 5 mph SW | 21% |
| Friday | 62°F | Slight Chance Rain Showers | 0 to 5 mph W | 24% |
| Friday Night | 41°F | Chance Rain Showers | 3 mph NW | 27% |
| Saturday | 51°F | Chance Rain Showers | 3 to 13 mph W | 33% |
| Saturday Night | 34°F | Chance Rain Showers | 6 to 9 mph W | 33% |
| Sunday | 51°F | Slight Chance Rain Showers then Partly Sunny | 6 to 12 mph W | 20% |
| Sunday Night | 33°F | Chance Rain Showers | 10 to 14 mph W | 25% |
| Monday | 51°F | Chance Rain Showers | 14 to 17 mph W | 34% |
| Monday Night | 34°F | Chance Rain Showers | 12 to 15 mph W | 34% |
Forecast source: National Weather Service (api.weather.gov) for Stoystown (40.103, -78.955). Updated through the day.
Growing snapshot for Stoystown
Last spring frost
May 6
First fall frost
Oct 12
Growing season
159 days
Hardiness zone
6a
More local growing data for Stoystown: nearby ZIP 15563 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Laurel Summit, Pa (12.1 mi from Stoystown). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.