Hartland Weather Forecast

    • 65
    • 78

    Increasing Clouds

    • 65
    • 83

    Slight Chance Thunderstorms

    • 62
    • 80

    Chance Thunderstorms

    • 66
    • 82

    Rain Showers Likely

    • 64
    • 81

    Chance Thunderstorms

    • 61
    • 79

    Chance Rain Showers

    • 59
    • 78

    Slight Chance Thunderstorms

Today 6 Aug Waukesha

Partly sunny. Southeast Winds 5 to 10 Mph.

Tonight 6 Aug Waukesha

Partly cloudy through around midnight then becoming mostly cloudy. Lows in the mid 60s. Southeast Winds up to 5 Mph through around midnight becoming calm.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hartland Temperature Statistics

August Temperature

Waukesha County Airport (6.2 miles)

  • Lowest 3 August, 2026

    57.2 °F

  • Average August

    72.2 °F

  • Highest 4 August, 2026

    84.2 °F

Climate (2021–2026)

Waukesha County Airport (6.2 miles)

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  • Average Low 2021–2026

    38.7 °F

  • Average 2021–2026

    46.2 °F

  • Average High 2021–2026

    56.7 °F
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