St Johns Weather Forecast

    • 36
    • 61

    Rain Likely

    • 22
    • 46

    Rain Likely

    • 23
    • 31

    Slight Chance Snow

    • 29
    • 38

    Partly Sunny

    • 33
    • 44

    Chance Rain

    • 20
    • 39

    Chance Rain

Today 9 Jan Mercer

Mostly cloudy. A slight chance of Showers late this morning. Breezy and mild with Highs in the lower 60s. Temperatures falling into the mid 40s this afternoon. West Winds 20 to 25 Mph with Gusts up to 40 Mph, becoming northwest 15 to 20 Mph with Gusts up to 30 Mph late. Chance of rain 20 percent.

Tonight 9 Jan Mercer

Mostly cloudy. Cooler with Lows in the mid 30s. North Winds 5 to 10 Mph, becoming east after midnight.

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St Johns Temperature Statistics

January Temperature

Versailles Darke County Airport (14.3 miles)

  • Lowest 1 January, 2026

    10.4 °F

  • Average January

    30.6 °F

  • Highest 6 January, 2026

    50 °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

    52.3 °F

  • Average High 2021–2026

    61.4 °F
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