St Marys Weather Forecast

    • 68
    • 88

    Chance Thunderstorms

    • 67
    • 85

    Chance Thunderstorms

    • 65
    • 86

    Rain Showers Likely

    • 61
    • 80

    Partly Sunny

    • 66
    • 84

    Chance Rain Showers

    • 59
    • 80

    Chance Rain Showers

Today 15 Sep Auglaize

Mostly sunny. Warmer with Highs in the upper 80s. South Winds 10 to 15 Mph.

Tonight 15 Sep Auglaize

Partly cloudy in the Evening, then becoming mostly cloudy. A chance of Showers and Thunderstorms. Warmer. Muggy. Lows in the upper 60s. Southwest Winds 5 to 10 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

St Marys Temperature Statistics

September Temperature

Lima, Lima Allen County Airport (22.4 miles)

  • Lowest 7 September, 2026

    55.7 °F

  • Average September

    74.4 °F

  • Highest 2 September, 2026

    93.7 °F

Climate (2021–2026)

Lima, Lima Allen County Airport (22.4 miles)

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  • Average Low 2021–2026

    44.2 °F

  • Average 2021–2026

    53.5 °F

  • Average High 2021–2026

    62.8 °F
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