Winchester Weather Forecast

    • 62
    • 75

    Slight Chance Rain Showers

    • 62
    • 73

    Chance Rain Showers

    • 65
    • 78

    Rain Showers Likely

    • 59
    • 82

    Mostly Sunny

    • 60
    • 80

    Mostly Sunny

    • 63
    • 83

    Partly Sunny

Today 21 Aug Southeast Middlesex

Mostly cloudy with a 20 percent chance of Showers. Cooler. Near steady temperature in the lower 70s. Northeast Winds around 10 Mph.

Tonight 21 Aug Southeast Middlesex

Mostly cloudy. A slight chance of Showers in the Evening, then a chance of Showers after midnight. Lows in the lower 60s. Northeast Winds 5 to 10 Mph. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Winchester Temperature Statistics

August Temperature

Laurence G Hanscom Field Airport (8.1 miles)

  • Lowest 16 August, 2026

    50 °F

  • Average August

    74.2 °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

    51.7 °F

  • Average High 2021–2026

    61.7 °F
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