St Johns Weather Forecast

    • 47
    • 73

    Mostly Sunny

    • 55
    • 75

    Mostly Sunny

    • 58
    • 78

    Rain Showers

    • 57
    • 65

    Chance Rain Showers

    • 57
    • 77

    Chance Rain Showers

    • 45
    • 71

    Slight Chance Rain Showers

Today 8 Oct Mercer

Sunny. Highs in the lower 70s. West Winds around 5 Mph, becoming northwest 10 to 15 Mph this afternoon.

Tonight 8 Oct Mercer

Clear. Lows in the upper 40s. Northwest Winds 5 to 10 Mph in the Evening, becoming light and variable.

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  • Temperature Real-Time

St Johns Temperature Statistics

October Temperature

Versailles Darke County Airport (14.3 miles)

  • Lowest 4 October, 2026

    44.6 °F

  • Average October

    61.7 °F

  • Highest 1 October, 2026

    86 °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

    61.8 °F
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