Westerville Reservoir Weather Forecast

    • 36
    • 43

    Increasing Clouds

    • 31
    • 53

    Mostly Cloudy

    • 45
    • 46

    Mostly Cloudy

    • 52
    • 62

    Chance Rain

    • 40
    • 62

    Chance Rain

    • 32
    • 53

    Mostly Cloudy

Today 22 Dec Delaware

Partly cloudy in the Morning, then becoming mostly cloudy. Highs in the lower 40s. South Winds 5 to 10 Mph.

Tonight 22 Dec Delaware

Mostly clear. Lows in the lower 20s. South Winds around 5 Mph.

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Westerville Reservoir Temperature Statistics

December Temperature

Columbus, Ohio State University Airport (9.3 miles)

  • Lowest 14 December, 2025

    1.4 °F

  • Average December

    27 °F

  • Highest 18 December, 2025

    54 °F

Climate (2020–Present)

Columbus, Ohio State University Airport (9.3 miles)

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  • Average Low 2020–2025

    46.1 °F

  • Average 2020–2025

    55.7 °F

  • Average High 2020–2025

    65.2 °F
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