Mentor-on-the-Lake Weather Forecast

    • 61
    • 77

    Increasing Clouds

    • 55
    • 73

    Partly Sunny

    • 62
    • 75

    Partly Sunny

    • 65
    • 82

    Chance Rain Showers

    • 64
    • 77

    Rain Showers Likely

    • 62
    • 77

    Chance Rain Showers

Today 18 Sep Lake

Patchy fog this morning. Mostly sunny. Highs in the upper 70s. West Winds 5 to 10 Mph.

Tonight 18 Sep Lake

Mostly clear in the Evening, then becoming partly cloudy. Lows around 60. West Winds around 5 Mph, becoming southeast after midnight.

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  • Temperature Real-Time

Mentor-on-the-Lake Temperature Statistics

September Temperature

Willoughby (1.9 miles)

  • Lowest 9 September, 2025

    47.1 °F

  • Average September

    62.8 °F

  • Highest 3 September, 2025

    81.7 °F

Climate (2020–Present)

Willoughby (1.9 miles)

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  • Average Low 2020–2025

    43.8 °F

  • Average 2020–2025

    51.8 °F

  • Average High 2020–2025

    59.3 °F
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