Hartland Weather Forecast

    • 48
    • 69

    Increasing Clouds

    • 52
    • 69

    Mostly Cloudy

    • 50
    • 70

    Mostly Cloudy

    • 46
    • 60

    Mostly Cloudy

    • 45
    • 58

    Mostly Cloudy

    • 46
    • 63

    Slight Chance Rain Showers

Today 23 Oct Waukesha

Cloudy in the morning then clearing. Areas of dense fog in the morning. Highs in the lower 70s. Southeast Winds up to 10 Mph.

Tonight 23 Oct Waukesha

Partly cloudy. Lows in the upper 40s. Southeast Winds up to 5 Mph.

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Hartland Temperature Statistics

October Temperature

Waukesha County Airport (6.2 miles)

  • Lowest 17 October, 2026

    33.8 °F

  • Average October

    57.1 °F

  • Highest 12 October, 2026

    86 °F

Climate (2021–2026)

Waukesha County Airport (6.2 miles)

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  • Average Low 2021–2026

    38.8 °F

  • Average 2021–2026

    46.2 °F

  • Average High 2021–2026

    56.6 °F
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