Westerville Reservoir Weather Forecast

    • 57
    • 82

    Becoming Sunny

    • 62
    • 84

    Mostly Sunny

    • 70
    • 90

    Mostly Sunny

    • 73
    • 93

    Chance Thunderstorms

    • 73
    • 90

    Rain Showers Likely

    • 71
    • 88

    Rain Showers Likely

    • 71
    • 89

    Chance Thunderstorms

Today 21 Jul Delaware

Partly cloudy. Near steady Temperatures in the upper 70s. Northeast Winds 5 to 10 Mph.

Tonight 21 Jul Delaware

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

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Westerville Reservoir Temperature Statistics

July Temperature

Columbus, Ohio State University Airport (9.3 miles)

  • Lowest 19 July, 2025

    64 °F

  • Average July

    78.1 °F

  • Highest 4 July, 2025

    91.7 °F

Climate (2020–Present)

Columbus, Ohio State University Airport (9.3 miles)

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  • Average Low 2020–2025

    46.3 °F

  • Average 2020–2025

    55.7 °F

  • Average High 2020–2025

    65.2 °F
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