Chestnut Hill Weather Forecast

    • 52
    • 68

    Chance Rain Showers

    • 51
    • 78

    Chance Thunderstorms

    • 48
    • 71

    Mostly Sunny

    • 52
    • 73

    Mostly Sunny

    • 61
    • 82

    Mostly Sunny

    • 66
    • 84

    Partly Sunny

Today 29 May Waukesha

Partly sunny. A 40 percent chance of light rain Showers in the afternoon. Highs in the upper 60s. Northwest Winds around 5 Mph.

Tonight 29 May Waukesha

Partly cloudy. Slight chance of Sprinkles in the evening. Lows in the lower 50s. West Winds up to 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Chestnut Hill Temperature Statistics

May Temperature

Waukesha County Airport (4.3 miles)

  • Lowest 4 May, 2025

    35.6 °F

  • Average May

    52.2 °F

  • Highest 15 May, 2025

    82.4 °F

Climate (2020–Present)

Waukesha County Airport (4.3 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    38 °F

  • Average 2020–2025

    45.6 °F

  • Average High 2020–2025

    56.2 °F
Get WillyWeather+ to remove ads