Mount Prospect Weather Forecast

    • 43
    • 54

    Rain Showers

    • 33
    • 46

    Rain/Snow Likely

    • 21
    • 39

    Rain/Snow Likely

    • 23
    • 31

    Partly Sunny

    • 32
    • 39

    Mostly Cloudy

    • 30
    • 42

    Chance Snow

Today 8 Jan Northern Cook

Rain in the afternoon. Highs in the lower 50s. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of precipitation near 100 percent.

Tonight 8 Jan Northern Cook

Mostly cloudy. Showers with a slight chance of Thunderstorms in the Evening, then a chance of Showers after midnight. Breezy with Lows in the lower 40s. South Winds 15 to 20 Mph, becoming southwest after midnight. Gusts up to 30 Mph. Chance of precipitation 90 percent.

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Mount Prospect Temperature Statistics

January Temperature

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

  • Lowest 1 January, 2026

    10.9 °F

  • Average January

    26.8 °F

  • Highest 5 January, 2026

    45 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    44.1 °F

  • Average 2021–2026

    52.9 °F

  • Average High 2021–2026

    61.4 °F
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