Seaton Weather Forecast

    • 72
    • 89

    Slight Chance Thunderstorms

    • 63
    • 84

    Chance Rain Showers

    • 57
    • 82

    Partly Sunny

    • 64
    • 85

    Slight Chance Rain Showers

    • 62
    • 86

    Mostly Sunny

Today 8 Sep Mercer

Mostly sunny. Highs in the upper 80s. South Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 8 Sep Mercer

Partly cloudy. Near steady temperature in the mid 60s. Southeast Winds 5 to 10 Mph.

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Seaton Temperature Statistics

September Temperature

Galesburg Municipal Airport (22.4 miles)

  • Lowest 2 September, 2026

    69.1 °F

  • Average September

    81.7 °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

    41.8 °F

  • Average 2021–2026

    52.1 °F

  • Average High 2021–2026

    62.5 °F
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