Westerville Reservoir Weather Forecast

    • 59
    • 88

    Mostly Sunny

    • 56
    • 86

    Partly Sunny

    • 56
    • 85

    Mostly Sunny

    • 57
    • 88

    Mostly Sunny

    • 58
    • 88

    Mostly Sunny

    • 61
    • 85

    Mostly Cloudy

Today 15 Sep Delaware

Mostly sunny. Highs in the upper 80s. Northeast Winds around 5 Mph.

Tonight 15 Sep Delaware

Clear. Lows in the upper 50s. Northeast Winds 5 to 10 Mph.

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Westerville Reservoir Temperature Statistics

September Temperature

Columbus, Ohio State University Airport (9.3 miles)

  • Lowest 8 September, 2025

    44.1 °F

  • Average September

    64.2 °F

  • Highest 3 September, 2025

    82.9 °F

Climate (2020–Present)

Columbus, Ohio State University Airport (9.3 miles)

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  • Average Low 2020–2025

    46.2 °F

  • Average 2020–2025

    55.7 °F

  • Average High 2020–2025

    65.2 °F
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