Summerville Weather Forecast
- 48
- 74
Sunny
- 47
- 72
Mostly Sunny
- 51
- 70
Partly Sunny
- 54
- 70
Chance Rain Showers
- 55
- 67
Chance Rain Showers
- 52
- 67
Slight Chance Rain Showers
Today 23 Oct Dorchester
Sunny. Highs in the mid 70s. North Winds around 5 Mph.
Tonight 23 Oct Dorchester
Mostly clear. Lows in the mid 40s. Light and variable Winds.
Summerville Temperature Statistics
October Temperature
Summerville Airport (6.2 miles)
Lowest 21 October, 2025
44.6 °FAverage October
67.3 °FHighest 6 October, 2025
87.8 °F
Climate (2020–Present)
Summerville Airport (6.2 miles)
Average Low 2020–2025
56.4 °FAverage 2020–2025
65.9 °FAverage High 2020–2025
76.9 °F