Summersville Weather Forecast
- 73
- 90
Chance Thunderstorms
- 73
- 92
Slight Chance Thunderstorms
- 73
- 93
Mostly Sunny
- 74
- 95
Slight Chance Thunderstorms
- 69
- 91
Chance Thunderstorms
- 68
- 87
Slight Chance Thunderstorms
Today 13 Aug Green
Partly sunny. Chance of Showers and slight chance of Thunderstorms early in the Morning, then slight chance of Thunderstorms in the late morning and afternoon. Highs in the lower 90s. Southwest Winds up to 5 Mph. Chance of precipitation 40 percent.
Tonight 13 Aug Green
Mostly cloudy with a 20 percent chance of Thunderstorms in the Evening, then partly cloudy after midnight. Lows in the lower 70s. Southwest Winds up to 5 Mph shifting to the southeast after midnight.
Summersville Temperature Statistics
August Temperature
Lebanon-Springfield Airport (26.7 miles)
Lowest 4 August, 2026
62.6 °FAverage August
78.5 °FHighest 11 August, 2026
95 °F
Climate (2021–2026)
Lebanon-Springfield Airport (26.7 miles)
Average Low 2021–2026
48.6 °FAverage 2021–2026
58.4 °FAverage High 2021–2026
69.1 °F