Lyle Retz Memorial County Park Weather Forecast

    • 58
    • 83

    Increasing Clouds

    • 56
    • 79

    Becoming Sunny

    • 63
    • 79

    Chance Rain Showers

    • 56
    • 79

    Chance Rain Showers

    • 63
    • 76

    Rain Showers Likely

    • 60
    • 85

    Rain Showers Likely

    • 56
    • 74

    Chance Rain Showers

Today 9 Sep Delaware

Mostly sunny. Highs in the lower 80s. Temperature falling into the upper 70s late. West Winds 5 to 10 Mph.

Tonight 9 Sep Delaware

Mostly clear this Evening, then becoming partly cloudy. Patchy fog after midnight. Cooler with Lows in the upper 50s. West Winds 5 to 10 Mph, becoming north after midnight.

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  • Temperature Real-Time

Lyle Retz Memorial County Park Temperature Statistics

September Temperature

Monticello Regional Airport (13.7 miles)

  • Lowest 7 September, 2026

    62.6 °F

  • Average September

    78 °F

  • Highest 1 September, 2026

    93.2 °F

Climate (2021–2026)

Monticello Regional Airport (13.7 miles)

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  • Average Low 2021–2026

    37.4 °F

  • Average 2021–2026

    48.1 °F

  • Average High 2021–2026

    58.6 °F
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