Shirleysburg, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Shirleysburg, a borough in Huntingdon County, Pennsylvania.
This Afternoon
81°F
Mostly Sunny
Mostly sunny, with a high near 81. North wind around 3 mph.
7-day forecast for Shirleysburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 81°F | Mostly Sunny | 3 mph N | 0% |
| Tonight | 52°F | Areas Of Fog | 2 mph N | 0% |
| Saturday | 77°F | Areas Of Fog then Partly Sunny | 2 mph E | 3% |
| Saturday Night | 63°F | Chance Rain Showers | 1 to 5 mph SE | 41% |
| Sunday | 78°F | Rain Showers | 5 mph SW | 96% |
| Sunday Night | 57°F | Showers And Thunderstorms | 1 to 5 mph NW | 96% |
| Monday | 70°F | Chance Rain Showers | 5 mph NE | 33% |
| Monday Night | 54°F | Rain Showers Likely | 5 mph NE | 68% |
| Tuesday | 63°F | Rain Showers Likely | 6 mph E | 73% |
| Tuesday Night | 50°F | Rain Showers Likely | 5 mph E | 67% |
| Wednesday | 60°F | Rain Showers Likely | 5 mph E | 58% |
| Wednesday Night | 50°F | Showers And Thunderstorms Likely | 5 mph NE | 55% |
| Thursday | 63°F | Chance Showers And Thunderstorms | 3 mph NE | 52% |
| Thursday Night | 51°F | Chance Rain Showers | 2 mph N | 38% |
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 Sep 19, 2026.