Lake Forest Weather Forecast

    • 50
    • 64

    Decreasing Clouds

    • 57
    • 73

    Partly Sunny

    • 47
    • 70

    Chance Rain Showers

    • 51
    • 66

    Rain Showers Likely

    • 53
    • 68

    Chance Rain Showers

    • 52
    • 68

    Chance Rain Showers

Today 27 Oct Waukesha

Mostly cloudy. Chance of Sprinkles early in the afternoon. Highs in the mid 60s. Southeast Winds 5 to 10 Mph.

Tonight 27 Oct Waukesha

Cloudy through around midnight then becoming partly cloudy. Lows around 50. South Winds up to 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Forest Temperature Statistics

October Temperature

Waukesha County Airport (10.6 miles)

  • Lowest 17 October, 2026

    33.8 °F

  • Average October

    56.5 °F

  • Highest 12 October, 2026

    86 °F

Climate (2021–2026)

Waukesha County Airport (10.6 miles)

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  • Average Low 2021–2026

    38.8 °F

  • Average 2021–2026

    46.3 °F

  • Average High 2021–2026

    56.6 °F
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