Winchester Weather Forecast

    • 48
    • 64

    Increasing Clouds

    • 52
    • 63

    Rain Showers

    • 49
    • 65

    Mostly Cloudy

    • 49
    • 61

    Mostly Cloudy

    • 49
    • 63

    Mostly Cloudy

    • 49
    • 62

    Chance Rain Showers

Today 19 Sep Southeast Middlesex

Mostly sunny. Cooler with Highs in the mid 60s. North Winds around 5 Mph, becoming east this afternoon.

Tonight 19 Sep Southeast Middlesex

Partly cloudy. Lows in the upper 40s. South Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Winchester Temperature Statistics

September Temperature

Laurence G Hanscom Field Airport (8.1 miles)

  • Lowest 15 September, 2026

    41 °F

  • Average September

    65.7 °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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