Mount Prospect Weather Forecast

    • 30
    • 42

    Increasing Clouds

    • 40
    • 52

    Mostly Cloudy

    • 52
    • 65

    Mostly Cloudy

    • 31
    • 73

    Chance Rain Showers

    • 28
    • 42

    Partly Sunny

    • 36
    • 52

    Mostly Sunny

    • 41
    • 57

    Partly Sunny

Today 23 Mar Northern Cook

Mostly sunny. Temperatures around 40. Northeast Winds around 10 Mph.

Tonight 23 Mar Northern Cook

Mostly clear in the Evening, then becoming mostly cloudy. Lows in the upper 20s. East Winds 5 to 10 Mph, becoming south after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mount Prospect Temperature Statistics

March Temperature

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

  • Lowest 17 March, 2026

    13.6 °F

  • Average March

    41.3 °F

  • Highest 21 March, 2026

    75 °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

    61.5 °F
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