Mount Prospect Weather Forecast

    • 78
    • 95

    Becoming Sunny

    • 80
    • 96

    Hot

    • 76
    • 96

    Rain Showers Likely

    • 72
    • 93

    Chance Thunderstorms

    • 69
    • 88

    Chance Thunderstorms

    • 68
    • 87

    Chance Thunderstorms

Today 30 Jun Northern Cook

Partly to mostly cloudy through early Afternoon, then decreasing cloudiness late. Breezy, hot. Highs in the mid 90s. Southwest Winds 10 to 15 Mph with Gusts up to 30 Mph. Heat index Values up to 107.

Tonight 30 Jun Northern Cook

Clear, breezy with Lows in the upper 70s. Southwest Winds 10 to 15 Mph. Gusts up to 30 Mph in the evening. Heat index Values up to 104 early in the evening.

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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

    68.6 °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

    43.9 °F

  • Average 2021–2026

    52.8 °F

  • Average High 2021–2026

    61.5 °F
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