St Johns Weather Forecast

    • 62
    • 80

    Rain Showers Likely

    • 37
    • 72

    Rain Showers

    • 31
    • 53

    Partly Sunny

    • 42
    • 55

    Mostly Sunny

    • 54
    • 73

    Partly Sunny

    • 49
    • 73

    Partly Sunny

Today 17 Apr Mercer

Partly cloudy. Unseasonably warm with Highs around 80. Light and variable Winds, becoming south around 5 Mph in the afternoon.

Tonight 17 Apr Mercer

Partly cloudy in the Evening, then mostly cloudy with Showers likely with a chance of Thunderstorms after midnight. Unseasonably warm with Lows in the lower 60s. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 70 percent.

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St Johns Temperature Statistics

April Temperature

Versailles Darke County Airport (14.3 miles)

  • Lowest 7 April, 2026

    28.4 °F

  • Average April

    55.5 °F

  • Highest 13 April, 2026

    80.6 °F

Climate (2021–Present)

Versailles Darke County Airport (14.3 miles)

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  • Average Low 2021–2026

    43.2 °F

  • Average 2021–2026

    52.4 °F

  • Average High 2021–2026

    61.6 °F
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