Winchester Weather Forecast
- 56
- 59
Rain
- 57
- 61
Rain
- 55
- 63
Rain
- 56
- 67
Slight Chance Rain Showers
- 58
- 73
Partly Sunny
- 60
- 75
Partly Sunny
Today 26 Sep Southeast Middlesex
Showers likely this Morning, then Showers with a slight chance of Thunderstorms this afternoon. Patchy fog. Breezy. Near steady temperature in the upper 50s. Northeast Winds 15 to 25 Mph with Gusts up to 45 Mph. Chance of rain 90 percent.
Tonight 26 Sep Southeast Middlesex
Showers with a slight chance of Thunderstorms in the Evening, then Showers after midnight. Patchy fog. Breezy. Near steady temperature in the mid 50s. Northeast Winds 15 to 25 Mph with Gusts up to 45 Mph. Chance of rain near 100 percent.
Winchester Temperature Statistics
September Temperature
Laurence G Hanscom Field Airport (8.1 miles)
Lowest 15 September, 2026
41 °FAverage September
63.6 °FHighest 4 September, 2026
84 °F
Climate (2021–2026)
Laurence G Hanscom Field Airport (8.1 miles)
Average Low 2021–2026
41.1 °FAverage 2021–2026
51.6 °FAverage High 2021–2026
61.7 °F