St Johns Weather Forecast

    • 35
    • 46

    Gradual Clearing

    • 52
    • 57

    Rain

    • 42
    • 63

    Rain Likely

    • 23
    • 51

    Chance Rain

    • 21
    • 31

    Mostly Cloudy

    • 28
    • 36

    Partly Sunny

    • 31
    • 40

    Mostly Cloudy

Today 7 Jan Mercer

Partly cloudy. Highs in the mid 40s. Southwest Winds around 5 Mph.

Tonight 7 Jan Mercer

Partly cloudy. Mild with Lows in the mid 30s. South Winds 5 to 10 Mph.

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  • Temperature Real-Time

St Johns Temperature Statistics

January Temperature

Versailles Darke County Airport (14.3 miles)

  • Lowest 1 January, 2026

    10.4 °F

  • Average January

    25.9 °F

  • Highest 5 January, 2026

    46.4 °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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