Winchester Weather Forecast

    • 60
    • 79

    Mostly Cloudy

    • 64
    • 79

    Rain Showers Likely

    • 53
    • 77

    Mostly Sunny

    • 54
    • 67

    Chance Rain Showers

    • 57
    • 68

    Rain Showers Likely

    • 56
    • 69

    Chance Rain Showers

Today 16 Sep Southeast Middlesex

Mostly sunny. Not as cool with Highs in the upper 70s. Southwest Winds 5 to 10 Mph.

Tonight 16 Sep Southeast Middlesex

Partly cloudy in the Evening, then becoming mostly cloudy. Lows around 60. Southwest Winds around 5 Mph, becoming west around 5 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Winchester Temperature Statistics

September Temperature

Laurence G Hanscom Field Airport (8.1 miles)

  • Lowest 12 September, 2026

    44.1 °F

  • Average September

    66.1 °F

  • Highest 4 September, 2026

    84 °F

Climate (2021–2026)

Laurence G Hanscom Field Airport (8.1 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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