Shirleysburg, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Shirleysburg, a borough in Huntingdon County, Pennsylvania.
Today
87°F
Mostly Sunny
Mostly sunny, with a high near 87. East wind around 2 mph.
7-day forecast for Shirleysburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 87°F | Mostly Sunny | 2 mph E | 0% |
| Tonight | 66°F | Mostly Cloudy | 2 mph E | 7% |
| Wednesday | 84°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 2 mph E | 34% |
| Wednesday Night | 70°F | Chance Showers And Thunderstorms | 2 mph E | 48% |
| Thursday | 87°F | Patchy Fog then Showers And Thunderstorms | 0 to 3 mph SW | 79% |
| Thursday Night | 71°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 1 mph SW | 79% |
| Friday | 87°F | Showers And Thunderstorms Likely | 2 mph W | 64% |
| Friday Night | 68°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 1 mph W | 64% |
| Saturday | 88°F | Showers And Thunderstorms Likely | 0 to 3 mph W | 59% |
| Saturday Night | 67°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 2 mph W | 59% |
| Sunday | 90°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 3 mph W | 15% |
| Sunday Night | 69°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 2 mph SW | 15% |
| Monday | 91°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 7 mph W | 18% |
| Monday Night | 69°F | Slight Chance Showers And Thunderstorms | 1 to 6 mph W | 19% |
Forecast source: National Weather Service (api.weather.gov) for Shirleysburg (40.297, -77.876). Updated through the day.
Growing snapshot for Shirleysburg
Last spring frost
Apr 19
First fall frost
Oct 28
Growing season
191 days
Hardiness zone
7a
More local growing data for Shirleysburg: nearby ZIP 17260 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Raystown Lake 2, Pa (11.2 mi from Shirleysburg). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.