Arlington Heights Weather Forecast

    • 39
    • 49

    Increasing Clouds

    • 48
    • 62

    Mostly Cloudy

    • 62
    • 74

    Chance Thunderstorms

    • 37
    • 74

    Rain Showers Likely

    • 33
    • 44

    Chance Rain/Snow

    • 37
    • 45

    Chance Rain Showers

Today 28 Mar Northern Cook

Sunny. Highs in the upper 40s. Southwest Winds 5 to 10 Mph, increasing to 10 to 15 Mph in the afternoon.

Tonight 28 Mar Northern Cook

Mostly cloudy. Lows in the upper 30s. Southwest Winds 10 to 15 Mph.

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Arlington Heights Temperature Statistics

March Temperature

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

  • Lowest 17 March, 2026

    13.6 °F

  • Average March

    41.5 °F

  • Highest 21 March, 2026

    76.6 °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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