Seaton Weather Forecast

    • 53
    • 71

    Decreasing Clouds

    • 54
    • 74

    Mostly Sunny

    • 63
    • 76

    Mostly Cloudy

    • 64
    • 73

    Rain Showers Likely

    • 58
    • 72

    Rain Showers Likely

    • 55
    • 68

    Chance Rain Showers

Today 27 Sep Mercer

Mostly cloudy this Morning, then becoming partly sunny. Highs around 70. East Winds around 5 Mph.

Tonight 27 Sep Mercer

Partly cloudy in the Evening, then clearing. Lows in the mid 50s. Northeast Winds around 5 Mph in the Evening, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Seaton Temperature Statistics

September Temperature

Galesburg Municipal Airport (22.4 miles)

  • Lowest 23 September, 2026

    50.2 °F

  • Average September

    70.8 °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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