Rattlesnake Island Airport Weather Forecast

    • 68
    • 75

    Mostly Sunny

    • 68
    • 70

    Partly Sunny

    • 68
    • 70

    Partly Sunny

    • 70
    • 77

    Mostly Cloudy

    • 69
    • 73

    Chance Rain Showers

    • 67
    • 74

    Chance Rain Showers

Today 18 Sep Ottawa

Patchy fog this morning. Mostly sunny. Highs in the lower 80s. West Winds around 5 Mph, becoming north around 5 Mph this afternoon.

Tonight 18 Sep Ottawa

Mostly clear in the Evening, then becoming partly cloudy. Lows in the lower 60s. East Winds around 5 Mph.

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  • Temperature Real-Time

Rattlesnake Island Airport Temperature Statistics

September Temperature

Port Clinton Carl R Keller Field Airport (11.2 miles)

  • Lowest 8 September, 2025

    48.2 °F

  • Average September

    64.2 °F

  • Highest 3 September, 2025

    80.6 °F

Climate (2020–Present)

Port Clinton Carl R Keller Field Airport (11.2 miles)

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  • Average Low 2020–2025

    45.4 °F

  • Average 2020–2025

    52.7 °F

  • Average High 2020–2025

    60.3 °F
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