Hartland Weather Forecast

    • 16
    • 27

    Snow Likely

    • 30
    • 34

    Rain/Snow

    • 4
    • 33

    Snow Likely

    • 4
    • 19

    Chance Snow

    • -5
    • 15

    Chance Snow

    • -6
    • 6

    Slight Chance Snow

Today 8 Dec Waukesha

Mostly cloudy. Highs in the mid 20s. South Winds up to 10 Mph.

Tonight 8 Dec Waukesha

Not as cold. Cloudy. Chance of light snow late in the evening. Light snow likely after Midnight, then chance of light snow early in the morning. Little snow accumulation. Lows around 16. Southwest Winds 5 to 15 Mph with Gusts to around 30 Mph. Chance of snow 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hartland Temperature Statistics

December Temperature

Waukesha County Airport (6.2 miles)

  • Lowest 4 December, 2025

    3.2 °F

  • Average December

    19.8 °F

  • Highest 3 December, 2025

    30.2 °F

Climate (2020–Present)

Waukesha County Airport (6.2 miles)

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  • Average Low 2020–2025

    38.4 °F

  • Average 2020–2025

    45.8 °F

  • Average High 2020–2025

    56.4 °F
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