Flat Rock Weather Forecast

    • 52
    • 64

    Slight Chance Rain Showers

    • 45
    • 67

    Mostly Sunny

    • 50
    • 67

    Mostly Sunny

    • 51
    • 70

    Mostly Sunny

    • 50
    • 69

    Partly Sunny

    • 51
    • 70

    Mostly Sunny

    • 59
    • 72

    Partly Sunny

Today 23 Sep Seneca

Partly sunny with a 40 percent chance of Showers. Highs in the mid 70s.

Tonight 23 Sep Seneca

Mostly cloudy with a chance of Showers this Evening, then partly cloudy after midnight. Lows in the lower 50s. East Winds 10 to 15 Mph. Chance of rain 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Flat Rock Temperature Statistics

September Temperature

Port Clinton Carl R Keller Field Airport (19.3 miles)

  • Lowest 14 September, 2026

    57.2 °F

  • Average September

    71.9 °F

  • Highest 2 September, 2026

    93.2 °F

Climate (2021–2026)

Port Clinton Carl R Keller Field Airport (19.3 miles)

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  • Average Low 2021–2026

    45.3 °F

  • Average 2021–2026

    52.7 °F

  • Average High 2021–2026

    60.5 °F
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