St Johns Weather Forecast

    • 27
    • 45

    Partly Sunny

    • 37
    • 52

    Mostly Cloudy

    • 53
    • 64

    Chance Rain

    • 34
    • 77

    Rain Likely

    • 25
    • 44

    Partly Sunny

    • 32
    • 50

    Mostly Sunny

Today 23 Mar Mercer

Partly cloudy. Much cooler with Highs in the mid 40s. Northwest Winds around 15 Mph.

Tonight 23 Mar Mercer

Partly Cloudy, then becoming clear late this Evening, then becoming partly cloudy. Lows in the upper 20s. North Winds 10 to 15 Mph, becoming northeast around 5 Mph after Midnight, then becoming light and variable late.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

St Johns Temperature Statistics

March Temperature

Versailles Darke County Airport (14.3 miles)

  • Lowest 18 March, 2026

    19.4 °F

  • Average March

    48.1 °F

  • Highest 6 March, 2026

    75.2 °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

    52.4 °F

  • Average High 2021–2026

    61.6 °F
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