Delaware State Park Weather Forecast

    • 67
    • 83

    Rain Showers Likely

    • 67
    • 78

    Chance Thunderstorms

    • 72
    • 90

    Partly Sunny

    • 66
    • 86

    Rain Showers

    • 68
    • 85

    Rain Showers Likely

    • 63
    • 81

    Chance Rain Showers

    • 59
    • 79

    Chance Thunderstorms

Today 12 Sep Jefferson

Mostly sunny with a slight chance of Showers and Thunderstorms. Highs in the lower 80s. North Winds 10 to 15 Mph. Chance of rain 20 percent.

Tonight 12 Sep Jefferson

A chance of Thunderstorms. Showers likely. Lows in the mid 60s. Northeast Winds 5 to 10 Mph. Chance of rain 70 percent.

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  • Temperature Real-Time

Delaware State Park Temperature Statistics

September Temperature

Topeka, Philip Billard Municipal Airport (9.9 miles)

  • Lowest 10 September, 2026

    68 °F

  • Average September

    84.9 °F

  • Highest 8 September, 2026

    103.6 °F

Climate (2021–2026)

Topeka, Philip Billard Municipal Airport (9.9 miles)

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  • Average Low 2021–2026

    46.4 °F

  • Average 2021–2026

    58.1 °F

  • Average High 2021–2026

    70 °F
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