St Johns Weather Forecast

    • 20
    • 27

    Mostly Cloudy

    • 33
    • 39

    Mostly Cloudy

    • 40
    • 56

    Mostly Cloudy

    • 43
    • 63

    Mostly Cloudy

    • 46
    • 65

    Partly Sunny

    • 34
    • 67

    Partly Sunny

Today 17 Mar Mercer

Partly cloudy with a 40 percent chance of snow Showers. Cold with Highs in the upper 20s. West Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 17 Mar Mercer

Partly cloudy. Lows in the lower 20s. West Winds 5 to 10 Mph with Gusts up to 20 Mph, becoming south after midnight.

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St Johns Temperature Statistics

March Temperature

Versailles Darke County Airport (14.3 miles)

  • Lowest 2 March, 2026

    23 °F

  • Average March

    47.9 °F

  • Highest 6 March, 2026

    75.2 °F

Climate (2021–Present)

Versailles Darke County Airport (14.3 miles)

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  • Average Low 2021–2026

    43.1 °F

  • Average 2021–2026

    52.4 °F

  • Average High 2021–2026

    61.6 °F
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