St Johns Weather Forecast

    • 55
    • 75

    Chance Rain Showers

    • 40
    • 66

    Rain Showers Likely

    • 49
    • 64

    Partly Sunny

    • 63
    • 79

    Mostly Cloudy

    • 65
    • 77

    Chance Rain Showers

    • 65
    • 82

    Rain Showers Likely

    • 56
    • 80

    Chance Rain Showers

Today 9 Apr Mercer

Partly cloudy. Highs in the mid 70s. Southwest Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 9 Apr Mercer

Mostly clear this Evening, then becoming partly cloudy. Lows in the mid 50s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

St Johns Temperature Statistics

April Temperature

Versailles Darke County Airport (14.3 miles)

  • Lowest 7 April, 2026

    28.4 °F

  • Average April

    52.2 °F

  • Highest 3 April, 2026

    78.8 °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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