Harrisville Weather Forecast
- 43
- 65
Decreasing Clouds
- 41
- 68
Mostly Sunny
- 45
- 71
Mostly Sunny
- 48
- 76
Mostly Sunny
- 50
- 79
Mostly Sunny
- 48
- 79
Mostly Sunny
- 46
- 75
Mostly Sunny
Today 6 Sep Butler
Mostly cloudy with a 20 percent chance of Showers. Near steady temperature in the upper 60s. Southwest Winds 5 to 10 Mph.
Tonight 6 Sep Butler
Mostly cloudy this Evening, then clearing. Lows in the mid 40s. West Winds 5 to 10 Mph with Gusts up to 20 Mph.
Harrisville Temperature Statistics
September Temperature
Franklin, Venango Regional Airport (18 miles)
Lowest 1 September, 2025
46 °FAverage September
62.6 °FHighest 3 September, 2025
81 °F
Climate (2020–Present)
Franklin, Venango Regional Airport (18 miles)
Average Low 2020–2025
40.8 °FAverage 2020–2025
49.4 °FAverage High 2020–2025
58.2 °F