Winchester Weather Forecast

    • 70
    • 84

    Mostly Cloudy

    • 63
    • 83

    Chance Thunderstorms

    • 63
    • 81

    Mostly Sunny

    • 67
    • 84

    Slight Chance Rain Showers

    • 63
    • 82

    Mostly Cloudy

    • 63
    • 77

    Chance Rain Showers

Today 27 Aug Southeast Middlesex

Partly sunny. Near steady temperature in the lower 80s. South Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 27 Aug Southeast Middlesex

Mostly cloudy with isolated Showers and Thunderstorms. Patchy fog after midnight. Some Thunderstorms may produce gusty Winds, small Hail, and heavy rainfall. Humid with Lows in the upper 60s. South Winds 5 to 10 Mph. Gusts up to 20 Mph in the evening. Chance of rain 20 percent.

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Winchester Temperature Statistics

August Temperature

Laurence G Hanscom Field Airport (8.1 miles)

  • Lowest 16 August, 2026

    50 °F

  • Average August

    72.9 °F

  • Highest 7 August, 2026

    91 °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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