Winchester Weather Forecast

    • 65
    • 80

    Rain Showers Likely

    • 50
    • 76

    Partly Sunny

    • 53
    • 65

    Partly Sunny

    • 53
    • 65

    Rain Showers Likely

    • 53
    • 65

    Chance Rain Showers

    • 52
    • 64

    Slight Chance Rain Showers

Today 17 Sep Southeast Middlesex

Partly sunny this Morning, then mostly cloudy with a slight chance of Showers this afternoon. Highs around 80. South Winds around 5 Mph. Chance of rain 20 percent.

Tonight 17 Sep Southeast Middlesex

Showers likely with isolated Thunderstorms in the Evening, then Showers likely after midnight. Patchy fog. Humid with Lows in the mid 60s. South Winds around 5 Mph, becoming west after midnight. Chance of rain 70 percent.

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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 °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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