Hartland Weather Forecast

    • 61
    • 80

    Chance Thunderstorms

    • 59
    • 80

    Partly Sunny

    • 62
    • 83

    Mostly Sunny

    • 66
    • 85

    Mostly Sunny

    • 68
    • 89

    Mostly Sunny

    • 69
    • 91

    Mostly Sunny

Today 9 Jul Waukesha

Mostly cloudy with scattered Showers and chance of Thunderstorms. Near steady temperature in the upper 70s. West Winds 5 to 10 Mph. Chance of precipitation 50 percent.

Tonight 9 Jul Waukesha

Mostly cloudy until early morning then becoming partly cloudy. Chance of light Showers and slight chance of Thunderstorms in the evening. Patchy fog after midnight. Lows in the lower 60s. Northeast Winds up to 5 Mph. Chance of precipitation 40 percent.

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Hartland Temperature Statistics

July Temperature

Waukesha County Airport (6.2 miles)

  • Lowest 7 July, 2026

    59 °F

  • Average July

    75.1 °F

  • Highest 1 July, 2026

    91.4 °F

Climate (2021–2026)

Waukesha County Airport (6.2 miles)

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  • Average Low 2021–2026

    38.6 °F

  • Average 2021–2026

    46 °F

  • Average High 2021–2026

    56.6 °F
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