St Johns Weather Forecast

    • 63
    • 78

    Chance Rain Showers

    • 62
    • 80

    Chance Thunderstorms

    • 63
    • 75

    Rain Showers

    • 64
    • 79

    Slight Chance Thunderstorms

    • 69
    • 85

    Partly Sunny

    • 72
    • 88

    Mostly Sunny

Today 24 Jun Mercer

Mostly sunny. Highs in the upper 70s. Light and variable Winds, becoming southwest around 5 Mph this afternoon.

Tonight 24 Jun Mercer

Partly cloudy. A chance of Showers and Thunderstorms after midnight. Lows in the lower 60s. Southwest Winds around 5 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

St Johns Temperature Statistics

June Temperature

Versailles Darke County Airport (14.3 miles)

  • Lowest 3 June, 2026

    50 °F

  • Average June

    70 °F

  • Highest 7 June, 2026

    87.8 °F

Climate (2021–2026)

Versailles Darke County Airport (14.3 miles)

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  • Average Low 2021–2026

    43.3 °F

  • Average 2021–2026

    52.5 °F

  • Average High 2021–2026

    61.7 °F
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