Lake Forest Weather Forecast

    • 47
    • 59

    Chance Rain

    • 59
    • 66

    Rain

    • 47
    • 76

    Rain

    • 42
    • 61

    Rain Likely

    • 52
    • 71

    Rain

    • 48
    • 66

    Chance Rain

Today 29 Mar Summit

Partly sunny. Not as cool with Highs in the upper 50s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 29 Mar Summit

Mostly cloudy with a 20 percent chance of Showers. Not as cool with Lows in the upper 40s. Southwest Winds 5 to 10 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Forest Temperature Statistics

March Temperature

Portage County Airport (11.2 miles)

  • Lowest 18 March, 2026

    12.7 °F

  • Average March

    44.2 °F

  • Highest 26 March, 2026

    74.5 °F

Climate (2021–Present)

Portage County Airport (11.2 miles)

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  • Average Low 2021–2026

    40.3 °F

  • Average 2021–2026

    49.8 °F

  • Average High 2021–2026

    59.8 °F
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