Mount Prospect Weather Forecast

    • 63
    • 75

    Partly Sunny

    • 75
    • 84

    Partly Sunny

    • 79
    • 94

    Mostly Sunny

    • 79
    • 96

    Mostly Sunny

    • 78
    • 98

    Slight Chance Thunderstorms

    • 76
    • 97

    Chance Thunderstorms

Today 27 Jun Northern Cook

Partly cloudy. Highs in the mid 70s Inland, but only in the upper 60s near the lake. East Winds around 10 Mph.

Tonight 27 Jun Northern Cook

Mostly cloudy in the Evening, then becoming partly cloudy. Lows in the lower 60s. Northeast Winds 5 to 10 Mph.

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Mount Prospect Temperature Statistics

June Temperature

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

  • Lowest 3 June, 2026

    48.7 °F

  • Average June

    68.8 °F

  • Highest 10 June, 2026

    90.6 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    44 °F

  • Average 2021–2026

    52.8 °F

  • Average High 2021–2026

    61.5 °F
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