Knox Weather Forecast
- 54
- 68
Increasing Clouds
- 54
- 67
Mostly Cloudy
- 53
- 71
Mostly Cloudy
- 56
- 74
Mostly Cloudy
- 57
- 74
Chance Rain Showers
- 51
- 69
Chance Rain Showers
Today 27 Sep Clarion
Mostly sunny this Morning, then becoming partly sunny. Highs in the upper 60s. North Winds 10 to 15 Mph with Gusts up to 25 Mph.
Tonight 27 Sep Clarion
Considerable cloudiness. A slight chance of rain in the evening. Lows in the mid 50s. North Winds 5 to 10 Mph. Gusts up to 25 Mph in the evening. Chance of rain 20 percent.
Knox Temperature Statistics
September Temperature
Franklin, Venango Regional Airport (19.9 miles)
Lowest 24 September, 2026
44.1 °FAverage September
65.8 °FHighest 2 September, 2026
87.1 °F
Climate (2021–2026)
Franklin, Venango Regional Airport (19.9 miles)
Average Low 2021–2026
40.7 °FAverage 2021–2026
49.4 °FAverage High 2021–2026
58.2 °F