Arlington Heights Weather Forecast

    • 26
    • 36

    Chance Rain/Snow

    • 25
    • 38

    Slight Chance Snow

    • 19
    • 32

    Slight Chance Snow

    • 19
    • 32

    Mostly Cloudy

    • 33
    • 41

    Mostly Cloudy

    • 25
    • 47

    Slight Chance Rain/Snow

Today 20 Feb Northern Cook

Mostly cloudy. A chance of rain early in the morning. A chance of snow in the Morning, then a chance of Flurries in the afternoon. Little or no snow accumulation. Windy with Highs in the mid 30s. West Winds 15 to 25 Mph with Gusts up to 45 Mph. Chance of precipitation 50 percent.

Tonight 20 Feb Northern Cook

Mostly cloudy in the Evening, then clearing. Blustery with Lows in the mid 20s. West Winds 15 to 20 Mph with Gusts up to 30 Mph, Diminishing to 10 to 15 Mph after midnight.

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Arlington Heights Temperature Statistics

February Temperature

Chicago / Wheeling, Pal-Waukee Airport (4.3 miles)

  • Lowest 1 February, 2026

    1.7 °F

  • Average February

    29.4 °F

  • Highest 16 February, 2026

    64.9 °F

Climate (2021–Present)

Chicago / Wheeling, Pal-Waukee Airport (4.3 miles)

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  • Average Low 2021–2026

    44.1 °F

  • Average 2021–2026

    52.9 °F

  • Average High 2021–2026

    61.6 °F
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