Mount Prospect Weather Forecast

    • 53
    • 70

    Mostly Sunny

    • 61
    • 82

    Partly Sunny

    • 57
    • 72

    Partly Sunny

    • 59
    • 74

    Partly Sunny

    • 57
    • 78

    Mostly Sunny

    • 58
    • 76

    Mostly Sunny

Today 28 May Northern Cook

Sunny. Highs in the lower 70s Inland, but only in the mid 60s near the lake. Northeast Winds 10 to 15 Mph.

Tonight 28 May Northern Cook

Mostly clear in the Evening, then becoming partly cloudy. Lows in the lower 50s. Northeast Winds 10 to 15 Mph, Diminishing to 5 to 10 Mph after midnight.

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Mount Prospect Temperature Statistics

May Temperature

Chicago / Wheeling, Pal-Waukee Airport (3.7 miles)

  • Lowest 2 May, 2026

    30.7 °F

  • Average May

    57.2 °F

  • Highest 17 May, 2026

    85.6 °F

Climate (2021–Present)

Chicago / Wheeling, Pal-Waukee Airport (3.7 miles)

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  • Average Low 2021–2026

    44 °F

  • Average 2021–2026

    52.9 °F

  • Average High 2021–2026

    61.6 °F
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