Hartland Weather Forecast

    • 6
    • 15

    Chance Snow Showers

    • 3
    • 21

    Mostly Sunny

    • 16
    • 25

    Mostly Cloudy

    • 12
    • 25

    Slight Chance Snow

    • 17
    • 27

    Chance Snow

    • 12
    • 26

    Chance Snow

Today 30 Jan Waukesha

Mostly cloudy until late afternoon then becoming mostly sunny. Chance of snow Showers in the Morning, then snow Showers late in the morning. Chance of snow Showers in the afternoon. Snow accumulation up to 1 inch. Highs around 15. North Winds 5 to 15 Mph. Chance of snow 90 percent.

Tonight 30 Jan Waukesha

Cloudy. Chance of Flurries after midnight. Near steady temperature around 2. Northwest Winds up to 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hartland Temperature Statistics

January Temperature

Waukesha County Airport (6.2 miles)

  • Lowest 23 January, 2026

    -16.6 °F

  • Average January

    19.3 °F

  • Highest 9 January, 2026

    57.2 °F

Climate (2021–Present)

Waukesha County Airport (6.2 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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