Winchester Weather Forecast

    • 65
    • 79

    Slight Chance Rain Showers

    • 68
    • 84

    Partly Sunny

    • 63
    • 84

    Slight Chance Rain Showers

    • 63
    • 80

    Mostly Cloudy

    • 63
    • 79

    Chance Rain Showers

    • 62
    • 80

    Rain Showers Likely

Today 18 Aug Southeast Middlesex

Mostly cloudy. Patchy fog this morning. A slight chance of Showers this afternoon. Highs around 80. Northeast Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 18 Aug Southeast Middlesex

Mostly cloudy. A slight chance of Showers in the evening. Patchy fog after midnight. Humid with Lows in the mid 60s. Southeast Winds 5 to 10 Mph, becoming south after midnight. Chance of rain 20 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

    74.5 °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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