Philadelphia, Pennsylvania weather in October

Averages from 2021–2025 (155 days of record).

Average high: 68°F
Average low: 51°F
Rainy days: ~7 per month
Total precipitation: 3.2 in
Warmest recorded: 83°F
Coldest recorded: 37°F

Expect October days in Philadelphia, Pennsylvania to top out around 68°F and cool to about 51°F overnight, with roughly 7 days of measurable rain across the month. In recent years October has ranged from 37°F to 83°F.

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Current Philadelphia, Pennsylvania forecast → · Historical data by Open-Meteo (ERA5).