Winchester Weather Forecast

    • 70
    • 88

    Partly Sunny

    • 74
    • 91

    Mostly Sunny

    • 74
    • 92

    Chance Thunderstorms

    • 71
    • 90

    Chance Rain Showers

    • 68
    • 90

    Mostly Sunny

    • 70
    • 90

    Slight Chance Rain Showers

    • 66
    • 88

    Chance Rain Showers

Today 5 Aug Southeast Middlesex

Mostly sunny. Near steady temperature in the upper 80s. Southwest Winds around 5 Mph.

Tonight 5 Aug Southeast Middlesex

Partly cloudy. Lows around 70. Southwest Winds around 5 Mph.

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Winchester Temperature Statistics

August Temperature

Laurence G Hanscom Field Airport (8.1 miles)

  • Lowest 1 August, 2026

    63 °F

  • Average August

    75.4 °F

  • Highest 1 August, 2026

    87.1 °F

Climate (2021–2026)

Laurence G Hanscom Field Airport (8.1 miles)

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  • Average Low 2021–2026

    41.3 °F

  • Average 2021–2026

    51.7 °F

  • Average High 2021–2026

    61.7 °F
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