Lake Forest Weather Forecast

    • 54
    • 69

    Slight Chance Rain Showers

    • 60
    • 71

    Rain Showers

    • 30
    • 71

    Rain Showers

    • 31
    • 40

    Rain/Snow Likely

    • 28
    • 50

    Chance Rain

    • 33
    • 45

    Rain/Snow Likely

Today 9 Mar Summit

Sunny, warmer with Highs in the upper 60s. Southwest Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 9 Mar Summit

Clear in the Evening, then partly cloudy with a slight chance of Showers after midnight. Not as cool with Lows in the mid 50s. South Winds 5 to 10 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Forest Temperature Statistics

March Temperature

Portage County Airport (11.2 miles)

  • Lowest 2 March, 2026

    14.7 °F

  • Average March

    43 °F

  • Highest 7 March, 2026

    72.5 °F

Climate (2021–Present)

Portage County Airport (11.2 miles)

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  • Average Low 2021–2026

    40.4 °F

  • Average 2021–2026

    49.8 °F

  • Average High 2021–2026

    59.8 °F
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