Seaton Weather Forecast

    • 6
    • 28

    Mostly Cloudy

    • -7
    • 10

    Snow

    • -6
    • 5

    Cold

    • 16
    • 30

    Mostly Sunny

    • 27
    • 37

    Partly Sunny

    • 32
    • 45

    Slight Chance Rain

    • 21
    • 44

    Partly Sunny

Today 12 Dec Mercer

Mostly cloudy. Near steady temperature in the upper 20s. West Winds 5 to 10 Mph.

Tonight 12 Dec Mercer

Mostly cloudy. A chance of Flurries with patchy freezing drizzle this evening. Colder with Lows around 6 above. Northwest Winds 10 to 15 Mph. Wind chill Values as low as 8 below after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Seaton Temperature Statistics

December Temperature

Galesburg Municipal Airport (22.4 miles)

  • Lowest 4 December, 2025

    -3.5 °F
  • Average December

    22.4 °F
  • Highest 9 December, 2025

    41.2 °F

Climate (2020–Present)

Galesburg Municipal Airport (22.4 miles)

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  • Average Low 2020–2025

    41.4 °F
  • Average 2020–2025

    51.5 °F
  • Average High 2020–2025

    61.7 °F
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