Prospect Heights Weather Forecast

    • 26
    • 37

    Decreasing Clouds

    • 30
    • 53

    Mostly Sunny

    • 34
    • 48

    Mostly Cloudy

    • 33
    • 54

    Partly Sunny

    • 40
    • 56

    Mostly Cloudy

    • 48
    • 53

    Chance Rain

    • 36
    • 60

    Chance Rain

Today 12 Feb Northern Cook

Mostly cloudy late in the Morning, then becoming partly cloudy. Highs around 40 Inland, but only in the mid 30s near the lake. East Winds around 5 Mph.

Tonight 12 Feb Northern Cook

Partly cloudy. Lows in the mid 20s. Southeast Winds around 5 Mph.

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Prospect Heights Temperature Statistics

February Temperature

Chicago / Wheeling, Pal-Waukee Airport (2.5 miles)

  • Lowest 1 February, 2026

    1.7 °F

  • Average February

    23.4 °F

  • Highest 10 February, 2026

    46 °F

Climate (2021–Present)

Chicago / Wheeling, Pal-Waukee Airport (2.5 miles)

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  • Average Low 2021–2026

    44 °F

  • Average 2021–2026

    52.8 °F

  • Average High 2021–2026

    61.4 °F
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