Winchester Weather Forecast
- 60
- 83
Chance Thunderstorms
- 60
- 79
Mostly Sunny
- 67
- 85
Slight Chance Rain Showers
- 63
- 80
Chance Rain Showers
- 65
- 79
Chance Rain Showers
- 66
- 80
Chance Rain Showers
- 64
- 81
Chance Rain
Today 28 Aug Southeast Middlesex
Mostly cloudy with a chance of Showers and Thunderstorms. Near steady temperature in the lower 80s. Southwest Winds around 5 Mph. Chance of rain 40 percent.
Tonight 28 Aug Southeast Middlesex
Mostly cloudy this Evening, then clearing. Cooler with Lows around 60. Northwest Winds 5 to 10 Mph.
Winchester Temperature Statistics
August Temperature
Laurence G Hanscom Field Airport (8.1 miles)
Lowest 16 August, 2026
50 °FAverage August
72.8 °FHighest 7 August, 2026
91 °F
Climate (2021–2026)
Laurence G Hanscom Field Airport (8.1 miles)
Average Low 2021–2026
41.2 °FAverage 2021–2026
51.6 °FAverage High 2021–2026
61.7 °F