Hartland Weather Forecast

    • 53
    • 74

    Chance Rain Showers

    • 55
    • 72

    Partly Sunny

    • 60
    • 78

    Slight Chance Rain Showers

    • 72
    • 85

    Slight Chance Thunderstorms

    • 74
    • 94

    Chance Thunderstorms

    • 73
    • 95

    Chance Thunderstorms

Today 25 Jun Waukesha

Partly sunny. Chance of light rain Showers and slight chance of Thunderstorms in the afternoon. Highs in the mid 70s. Northwest Winds 5 to 10 Mph. Chance of precipitation 30 percent.

Tonight 25 Jun Waukesha

Partly cloudy with a 20 percent chance of light rain Showers in the Evening, then mostly cloudy in the late evening and overnight. Lows in the lower 50s. Northeast Winds up to 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hartland Temperature Statistics

June Temperature

Waukesha County Airport (6.2 miles)

  • Lowest 3 June, 2026

    44.6 °F

  • Average June

    64.4 °F

  • Highest 10 June, 2026

    87.8 °F

Climate (2021–2026)

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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