Stoystown, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Stoystown, a borough in Somerset County, Pennsylvania.
Today
80°F
Sunny
Sunny, with a high near 80. Southeast wind 2 to 6 mph.
7-day forecast for Stoystown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 80°F | Sunny | 2 to 6 mph SE | 0% |
| Tonight | 62°F | Partly Cloudy | 3 to 7 mph SE | 4% |
| Wednesday | 80°F | Partly Sunny then Chance Showers And Thunderstorms | 5 mph SE | 33% |
| Wednesday Night | 65°F | Chance Showers And Thunderstorms | 5 mph S | 54% |
| Thursday | 81°F | Showers And Thunderstorms | 2 to 7 mph SW | 85% |
| Thursday Night | 65°F | Showers And Thunderstorms | 5 mph SW | 85% |
| Friday | 80°F | Showers And Thunderstorms | 2 to 7 mph SW | 82% |
| Friday Night | 64°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 mph SW | 82% |
| Saturday | 79°F | Chance Showers And Thunderstorms | 3 to 8 mph W | 46% |
| Saturday Night | 64°F | Chance Showers And Thunderstorms | 6 mph W | 46% |
| Sunday | 81°F | Slight Chance Showers And Thunderstorms | 3 to 8 mph W | 23% |
| Sunday Night | 65°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 7 mph W | 23% |
| Monday | 82°F | Mostly Sunny then Chance Showers And Thunderstorms | 7 to 12 mph W | 29% |
| Monday Night | 65°F | Chance Showers And Thunderstorms | 7 to 10 mph W | 39% |
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 Aug 4, 2026.