Seaton Weather Forecast

    • 30
    • 49

    Mostly Cloudy

    • 41
    • 47

    Drizzle

    • 44
    • 49

    Mostly Cloudy

    • 39
    • 56

    Mostly Cloudy

    • 22
    • 58

    Mostly Cloudy

    • 11
    • 29

    Mostly Sunny

Today 23 Dec Mercer

Partly cloudy. Highs in the upper 40s. Southwest Winds 5 to 10 Mph, becoming northwest.

Tonight 23 Dec Mercer

Partly cloudy in the Evening, then becoming mostly cloudy. Lows around 30. Northeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Seaton Temperature Statistics

December Temperature

Galesburg Municipal Airport (22.4 miles)

  • Lowest 14 December, 2025

    -12.5 °F

  • Average December

    22.1 °F

  • Highest 18 December, 2025

    43.5 °F

Climate (2020–Present)

Galesburg Municipal Airport (22.4 miles)

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  • Average Low 2020–2025

    41.3 °F

  • Average 2020–2025

    51.5 °F

  • Average High 2020–2025

    61.7 °F
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