Sussex Weather Forecast

    • -12
    • 13

    Mostly Cloudy

    • -17
    • 11

    Cold

    • -13
    • 5

    Cold

    • 5
    • 29

    Partly Sunny

    • 6
    • 26

    Partly Sunny

    • 10
    • 27

    Partly Sunny

Today 18 Jan Southeast Johnson County

Mostly cloudy with scattered snow Showers. Brisk, cold with Highs around 12. North Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of snow 30 percent.

Tonight 18 Jan Southeast Johnson County

Mostly cloudy with scattered snow Showers in the Evening, then partly cloudy after midnight. Colder with Lows 9 below to 13 below zero. North Winds 10 to 15 Mph with Gusts up to 25 Mph, becoming southwest after midnight. Chance of snow 30 percent.

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Sussex Temperature Statistics

January Temperature

Buffalo - Johnson County Airport (51.6 miles)

  • Lowest 1 January, 2025

    11.8 °F

  • Average January

    24.4 °F

  • Highest 10 January, 2025

    51.7 °F

Climate (2020–Present)

Buffalo - Johnson County Airport (51.6 miles)

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  • Average Low 2020–2025

    36.8 °F

  • Average 2020–2025

    47.8 °F

  • Average High 2020–2025

    58.8 °F
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