Prospect Heights Weather Forecast

    • 35
    • 45

    Increasing Clouds

    • 27
    • 49

    Mostly Cloudy

    • 14
    • 29

    Snow Showers Likely

    • 21
    • 26

    Chance Snow

    • 16
    • 33

    Chance Snow Showers

    • 7
    • 21

    Chance Snow Showers

    • 7
    • 18

    Mostly Cloudy

Today 12 Jan Northern Cook

Mostly sunny. Highs in the mid 40s. Southwest Winds 10 to 15 Mph.

Tonight 12 Jan Northern Cook

Partly cloudy in the Evening, then becoming mostly cloudy. Near steady temperature in the mid 30s. Southwest Winds 10 to 15 Mph.

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  • Temperature Real-Time

Prospect Heights Temperature Statistics

January Temperature

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

  • Lowest 1 January, 2026

    10.9 °F

  • Average January

    32.8 °F

  • Highest 8 January, 2026

    60.1 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    44.2 °F

  • Average 2021–2026

    52.9 °F

  • Average High 2021–2026

    61.5 °F
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