Philadelphia Weather Forecast

    • 36
    • 60

    Mostly Sunny

    • 46
    • 65

    Partly Sunny

    • 44
    • 66

    Rain Showers

    • 49
    • 62

    Chance Rain Showers

    • 50
    • 69

    Mostly Cloudy

    • 50
    • 75

    Mostly Sunny

    • 49
    • 75

    Mostly Sunny

Today 21 May Jefferson

Sunny. Highs Ranging from the mid 50s on the tug hill to around 60 across the lower Elevations. North Winds 5 to 10 Mph.

Tonight 21 May Jefferson

Mainly clear with Areas of frost developing after midnight. Lows Ranging from the mid 30s across the tug hill to the lower 40s along the lake Ontario shore. North Winds 10 Mph or less.

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Philadelphia Temperature Statistics

May Temperature

Fort Drum / Wheeler-Sack U. S. Army Airfield (6.8 miles)

  • Lowest 11 May, 2026

    34.3 °F

  • Average May

    52.8 °F

  • Highest 18 May, 2026

    88.9 °F

Climate (2021–Present)

Fort Drum / Wheeler-Sack U. S. Army Airfield (6.8 miles)

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  • Average Low 2021–2026

    39.3 °F

  • Average 2021–2026

    47.8 °F

  • Average High 2021–2026

    55.9 °F
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