Seaton Weather Forecast

    • 67
    • 92

    Mostly Sunny

    • 63
    • 85

    Partly Sunny

    • 65
    • 85

    Partly Sunny

    • 73
    • 92

    Slight Chance Thunderstorms

    • 64
    • 89

    Chance Rain Showers

    • 60
    • 82

    Partly Sunny

Today 5 Sep Mercer

Sunny, hot with Highs in the lower 90s. North Winds 5 to 10 Mph. Heat index Values up to 106.

Tonight 5 Sep Mercer

Mostly clear in the Evening, then becoming partly cloudy. Humid with Lows in the upper 60s. Northeast Winds 5 to 10 Mph. Heat index Values up to 102 early in the evening.

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Seaton Temperature Statistics

September Temperature

Galesburg Municipal Airport (22.4 miles)

  • Lowest 2 September, 2026

    69.1 °F

  • Average September

    81.6 °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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