Philadelphia Weather Forecast
- 54
- 76
Rain Showers
- 54
- 74
Mostly Sunny
- 61
- 77
Partly Sunny
- 61
- 81
Rain Showers
- 55
- 74
Chance Thunderstorms
- 56
- 75
Slight Chance Thunderstorms
Today 18 Jul Jefferson
Areas of smoke through early afternoon. Showers likely with a chance of Thunderstorms late this Morning, then Showers with Thunderstorms likely this afternoon. Some Thunderstorms may produce gusty Winds and heavy rainfall this afternoon. Locally heavy rainfall possible this afternoon. Breezy with Highs in the upper 70s. South Winds 10 to 15 Mph with Gusts up to 30 Mph, becoming southwest. Chance of rain near 100 percent.
Tonight 18 Jul Jefferson
Mostly cloudy with Showers likely with a chance of Thunderstorms in the Evening, then partly cloudy overnight. Some Thunderstorms may produce gusty Winds and heavy rainfall in the evening. Lows Ranging from the mid 50s across the tug hill to the upper 50s along the lake Ontario shore. West Winds 10 to 15 Mph with Gusts up to 30 Mph, becoming northwest 5 to 10 Mph. Chance of rain 70 percent.
Philadelphia Temperature Statistics
July Temperature
Fort Drum / Wheeler-Sack U. S. Army Airfield (6.8 miles)
Lowest 12 July, 2026
59 °FAverage July
74.8 °FHighest 1 July, 2026
90 °F
Climate (2021–2026)
Fort Drum / Wheeler-Sack U. S. Army Airfield (6.8 miles)
Average Low 2021–2026
39.3 °FAverage 2021–2026
47.8 °FAverage High 2021–2026
55.9 °F