St Catharine Weather Forecast

    • 61
    • 71

    Chance Thunderstorms

    • 71
    • 85

    Chance Rain Showers

    • 62
    • 80

    Rain Showers

    • 67
    • 79

    Chance Thunderstorms

    • 65
    • 81

    Chance Rain Showers

    • 60
    • 77

    Chance Rain Showers

Today 13 Sep Linn

Mostly cloudy this Morning, then partly sunny with a slight chance of Showers and Thunderstorms this afternoon. Not as warm with Highs in the lower 70s. Northeast Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 13 Sep Linn

Mostly cloudy with a slight chance of Showers and Thunderstorms. Lows in the lower 60s. East Winds around 10 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

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St Catharine Temperature Statistics

September Temperature

Chillicothe, Chillicothe Agri-Science Center (31.1 miles)

  • Lowest 11 September, 2026

    63 °F

  • Average September

    81.8 °F

  • Highest 5 September, 2026

    100.7 °F

Climate (2021–2026)

Chillicothe, Chillicothe Agri-Science Center (31.1 miles)

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  • Average Low 2021–2026

    45.6 °F

  • Average 2021–2026

    56.3 °F

  • Average High 2021–2026

    67.2 °F
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