Lake Wilhelm Weather Forecast
- 45
- 67
Increasing Clouds
- 35
- 62
Mostly Sunny
- 33
- 60
Mostly Sunny
- 44
- 63
Chance Rain Showers
- 54
- 72
Rain Showers Likely
- 42
- 65
Rain Showers
- 42
- 58
Chance Rain Showers
Today 14 Oct Mercer
Mostly sunny. Near steady temperature in the upper 60s. North Winds around 10 Mph with Gusts up to 20 Mph.
Tonight 14 Oct Mercer
Mainly clear. Lows in the mid 40s. North Winds 5 to 10 Mph.
Lake Wilhelm Temperature Statistics
October Temperature
Franklin, Venango Regional Airport (13.7 miles)
Lowest 9 October, 2025
34 °FAverage October
57.5 °FHighest 6 October, 2025
80.1 °F
Climate (2020–Present)
Franklin, Venango Regional Airport (13.7 miles)
Average Low 2020–2025
40.8 °FAverage 2020–2025
49.5 °FAverage High 2020–2025
58.3 °F