Waukesha Weather Forecast

    • 3
    • 9

    Chance Flurries

    • -2
    • 12

    Partly Sunny

    • -4
    • 10

    Cold

    • -1
    • 11

    Mostly Sunny

    • 2
    • 14

    Mostly Sunny

    • 8
    • 20

    Partly Sunny

Today 26 Jan Waukesha

Bitterly cold. Sunny. Highs around 9. West Winds 10 to 15 Mph. Lowest wind chill Readings 14 below to 24 below zero until late afternoon.

Tonight 26 Jan Waukesha

Partly cloudy in the evening then becoming mostly cloudy. Slight chance of light snow after midnight. Chance of Flurries early in the morning. Lows around 3. Southwest Winds 10 to 20 Mph. Chance of snow 20 percent.

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Waukesha Temperature Statistics

January Temperature

Waukesha County Airport (1.9 miles)

  • Lowest 23 January, 2026

    -16.6 °F

  • Average January

    21 °F

  • Highest 9 January, 2026

    57.2 °F

Climate (2021–Present)

Waukesha County Airport (1.9 miles)

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  • Average Low 2021–2026

    38.3 °F

  • Average 2021–2026

    45.8 °F

  • Average High 2021–2026

    56.3 °F
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