Shirleysburg, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Shirleysburg, a borough in Huntingdon County, Pennsylvania.
Today
77°F
Patchy Fog then Mostly Sunny
Patchy fog before 9am. Mostly sunny. High near 77, with temperatures falling to around 70 in the afternoon. South wind 1 to 7 mph.
7-day forecast for Shirleysburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 77°F | Patchy Fog then Mostly Sunny | 1 to 7 mph S | 1% |
| Tonight | 60°F | Light Rain | 6 mph S | 92% |
| Thursday | 76°F | Light Rain Likely | 1 to 5 mph SW | 67% |
| Thursday Night | 50°F | Mostly Cloudy | 1 mph W | 9% |
| Friday | 70°F | Partly Sunny | 1 mph NW | 14% |
| Friday Night | 43°F | Partly Cloudy | 1 mph NW | 7% |
| Saturday | 59°F | Slight Chance Light Rain | 2 to 8 mph W | 18% |
| Saturday Night | 36°F | Slight Chance Light Rain then Mostly Cloudy | 6 mph NW | 17% |
| Sunday | 60°F | Mostly Sunny | 7 mph W | 5% |
| Sunday Night | 33°F | Partly Cloudy | 5 mph W | 6% |
| Monday | 59°F | Mostly Sunny | 3 to 8 mph W | 6% |
| Monday Night | 32°F | Mostly Clear | 3 mph W | 4% |
| Tuesday | 64°F | Sunny | 2 to 7 mph W | 3% |
| Tuesday Night | 33°F | Mostly Clear | 3 mph W | 0% |
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
Nearby towns & communities
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Huntingdon
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Marklesburg
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Wood
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 Nov 4, 2026.