St Johns Weather Forecast

    • 19
    • 32

    Mostly Cloudy

    • 26
    • 39

    Mostly Sunny

    • 33
    • 45

    Rain Likely

    • 30
    • 45

    Chance Rain

    • 34
    • 48

    Partly Sunny

Today 12 Feb Mercer

Partly cloudy. Highs in the lower 30s. Northwest Winds around 5 Mph.

Tonight 12 Feb Mercer

Mostly clear in the Evening, then becoming partly cloudy. Lows around 20. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

St Johns Temperature Statistics

February Temperature

Versailles Darke County Airport (14.3 miles)

  • Lowest 5 February, 2026

    -5.8 °F

  • Average February

    16.9 °F

  • Highest 6 February, 2026

    33.8 °F

Climate (2021–Present)

Versailles Darke County Airport (14.3 miles)

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  • Average Low 2021–2026

    43 °F

  • Average 2021–2026

    52.2 °F

  • Average High 2021–2026

    61.4 °F
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