Winchester Weather Forecast

    • 53
    • 69

    Mostly Sunny

    • 62
    • 79

    Partly Sunny

    • 64
    • 79

    Chance Rain Showers

    • 56
    • 78

    Partly Sunny

    • 58
    • 71

    Chance Rain Showers

    • 56
    • 72

    Chance Rain Showers

Today 15 Sep Southeast Middlesex

Sunny. Highs in the upper 60s. North Winds around 5 Mph, becoming east this afternoon.

Tonight 15 Sep Southeast Middlesex

Mostly clear in the Evening, then becoming partly cloudy. Lows in the lower 50s. Southeast Winds around 5 Mph, becoming southwest after midnight.

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Winchester Temperature Statistics

September Temperature

Laurence G Hanscom Field Airport (8.1 miles)

  • Lowest 12 September, 2026

    44.1 °F

  • Average September

    66.2 °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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