St Marys Weather Forecast

    • 71
    • 92

    Mostly Sunny

    • 72
    • 92

    Slight Chance Thunderstorms

    • 65
    • 89

    Rain Showers

    • 62
    • 75

    Rain Showers

    • 56
    • 72

    Partly Sunny

    • 57
    • 72

    Chance Rain Showers

Today 17 Sep Pottawatomie

Patchy fog this morning. Sunny. Highs in the upper 80s. Northeast Winds around 5 Mph, becoming southeast around 5 Mph this afternoon.

Tonight 17 Sep Pottawatomie

Mostly clear. Humid with Lows around 70. Southeast Winds around 5 Mph.

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St Marys Temperature Statistics

September Temperature

Topeka, Philip Billard Municipal Airport (24.9 miles)

  • Lowest 14 September, 2026

    63 °F

  • Average September

    82.2 °F

  • Highest 8 September, 2026

    103.6 °F

Climate (2021–2026)

Topeka, Philip Billard Municipal Airport (24.9 miles)

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  • Average Low 2021–2026

    46.4 °F

  • Average 2021–2026

    58.1 °F

  • Average High 2021–2026

    70 °F
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