Hartland Weather Forecast

    • 65
    • 86

    Mostly Cloudy

    • 62
    • 80

    Rain Showers

    • 58
    • 85

    Slight Chance Thunderstorms

    • 59
    • 81

    Partly Sunny

    • 63
    • 84

    Partly Sunny

    • 66
    • 86

    Chance Rain Showers

Today 4 Jun Waukesha

Partly sunny. Highs in the mid 80s. Southwest Winds 5 to 15 Mph.

Tonight 4 Jun Waukesha

Partly cloudy through around Midnight, then mostly cloudy with chance of light Showers after midnight. Mostly cloudy with chance of light Showers and slight chance of Thunderstorms early in the morning. Lows in the mid 60s. Southwest Winds 5 to 10 Mph. Chance of precipitation 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hartland Temperature Statistics

June Temperature

Waukesha County Airport (6.2 miles)

  • Lowest 1 June, 2026

    53.6 °F

  • Average June

    60.9 °F

  • Highest 1 June, 2026

    73.4 °F

Climate (2021–Present)

Waukesha County Airport (6.2 miles)

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  • Average Low 2021–2026

    38.5 °F

  • Average 2021–2026

    46 °F

  • Average High 2021–2026

    56.6 °F
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