Seaton Weather Forecast

    • 65
    • 71

    Rain Showers

    • 56
    • 71

    Rain Showers

    • 49
    • 67

    Mostly Sunny

    • 51
    • 68

    Mostly Sunny

    • 45
    • 68

    Mostly Sunny

    • 46
    • 63

    Mostly Sunny

Today 30 Sep Mercer

Showers. Not as warm with Highs in the lower 70s. South Winds 10 to 15 Mph. Chance of rain 90 percent.

Tonight 30 Sep Mercer

Showers likely. A slight chance of Thunderstorms after midnight. Some Thunderstorms may produce heavy rainfall after midnight. Humid. Near steady temperature in the upper 60s. South Winds 5 to 10 Mph. Chance of rain 70 percent.

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Seaton Temperature Statistics

September Temperature

Galesburg Municipal Airport (22.4 miles)

  • Lowest 28 September, 2026

    45.9 °F

  • Average September

    69.8 °F

  • Highest 3 September, 2026

    93.6 °F

Climate (2021–2026)

Galesburg Municipal Airport (22.4 miles)

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  • Average Low 2021–2026

    41.9 °F

  • Average 2021–2026

    52.2 °F

  • Average High 2021–2026

    62.5 °F
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