Arlington Heights Weather Forecast

    • 20
    • 24

    Snow

    • 35
    • 40

    Chance Rain Showers

    • 36
    • 48

    Slight Chance Rain Showers

    • 40
    • 56

    Mostly Cloudy

    • 46
    • 66

    Mostly Cloudy

    • 30
    • 61

    Mostly Cloudy

    • 29
    • 41

    Partly Sunny

Today 17 Mar Northern Cook

Mostly sunny late in the Morning, then becoming mostly cloudy. Highs in the lower 20s. Northwest Winds around 10 Mph, becoming west in the afternoon.

Tonight 17 Mar Northern Cook

Snow in the late evening and overnight. Total snow accumulation around an inch. Near steady temperature in the lower 20s. Southwest Winds 5 to 10 Mph, increasing to south 10 to 15 Mph after midnight. Chance of precipitation near 100 percent.

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Arlington Heights Temperature Statistics

March Temperature

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

  • Lowest 2 March, 2026

    21.7 °F

  • Average March

    41.6 °F

  • Highest 9 March, 2026

    72 °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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