St Johns Weather Forecast

    • 43
    • 59

    Mostly Sunny

    • 55
    • 69

    Mostly Sunny

    • 62
    • 74

    Rain

    • 29
    • 70

    Rain

    • 33
    • 43

    Mostly Cloudy

    • 34
    • 57

    Slight Chance Rain

Today 8 Mar Mercer

Partly cloudy in the Morning, then clearing. Highs in the upper 50s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 8 Mar Mercer

Clear. Lows in the mid 40s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

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  • Temperature Real-Time

St Johns Temperature Statistics

March Temperature

Versailles Darke County Airport (14.3 miles)

  • Lowest 2 March, 2026

    23 °F

  • Average March

    40 °F

  • Highest 5 March, 2026

    62.6 °F

Climate (2021–Present)

Versailles Darke County Airport (14.3 miles)

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  • Average Low 2021–2026

    43.1 °F

  • Average 2021–2026

    52.3 °F

  • Average High 2021–2026

    61.5 °F
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