St Johns Weather Forecast

    • 60
    • 78

    Rain Showers

    • 51
    • 70

    Chance Rain Showers

    • 39
    • 62

    Partly Sunny

    • 40
    • 59

    Partly Sunny

    • 36
    • 57

    Partly Sunny

    • 37
    • 58

    Partly Sunny

Today 27 Apr Mercer

Mostly sunny in the Morning, then partly cloudy with a slight chance of Showers in the afternoon. Unseasonably warm with Highs around 80. Southeast Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 20 percent.

Tonight 27 Apr Mercer

Showers with a chance of Thunderstorms. Unseasonably warm with Lows around 60. South Winds 15 to 20 Mph with Gusts up to 35 Mph. Chance of rain 100 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

St Johns Temperature Statistics

April Temperature

Versailles Darke County Airport (14.3 miles)

  • Lowest 7 April, 2026

    28.4 °F

  • Average April

    57.4 °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

    52.5 °F

  • Average High 2021–2026

    61.7 °F
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