Arlington Heights Weather Forecast

    • 70
    • 78

    Rain Showers Likely

    • 56
    • 86

    Chance Rain Showers

    • 51
    • 75

    Mostly Sunny

    • 58
    • 76

    Slight Chance Thunderstorms

    • 63
    • 80

    Chance Rain Showers

    • 63
    • 84

    Partly Sunny

Today 9 Sep Southeast Middlesex

Mostly cloudy. Highs in the upper 70s. Southeast Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 9 Sep Southeast Middlesex

Mostly cloudy. A chance of Showers in the Evening, then Showers likely after midnight. Not as cool. Humid with Lows around 70. Southwest Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain 70 percent.

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Arlington Heights Temperature Statistics

September Temperature

Laurence G Hanscom Field Airport (6.2 miles)

  • Lowest 7 September, 2026

    46.9 °F

  • Average September

    65.8 °F

  • Highest 4 September, 2026

    84 °F

Climate (2021–2026)

Laurence G Hanscom Field Airport (6.2 miles)

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  • Average Low 2021–2026

    41.2 °F

  • Average 2021–2026

    51.6 °F

  • Average High 2021–2026

    61.7 °F
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