Folsom Weather Forecast

    • 69
    • 88

    Chance Rain Showers

    • 63
    • 83

    Partly Sunny

    • 60
    • 80

    Mostly Sunny

    • 61
    • 80

    Mostly Sunny

    • 64
    • 83

    Partly Sunny

    • 70
    • 82

    Chance Rain Showers

Today 4 Sep Delaware

Mostly sunny. Hot with Highs in the mid 80s. Northwest Winds 5 to 10 Mph.

Tonight 4 Sep Delaware

Mostly cloudy. A chance of Showers with a slight chance of Thunderstorms in the Evening, then a slight chance of Showers after midnight. Humid with Lows in the upper 60s. Northwest Winds around 5 Mph. Chance of rain 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Folsom Temperature Statistics

September Temperature

Philadelphia, Philadelphia International Airport (5 miles)

  • Lowest 2 September, 2026

    72 °F

  • Average September

    79.2 °F

  • Highest 1 September, 2026

    93.7 °F

Climate (2021–2026)

Philadelphia, Philadelphia International Airport (5 miles)

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  • Average Low 2021–2026

    50.3 °F

  • Average 2021–2026

    58.6 °F

  • Average High 2021–2026

    67.2 °F
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