St. Clair Weather Forecast
- 56
- 79
Partly Sunny
- 54
- 77
Mostly Sunny
- 54
- 78
Mostly Sunny
- 59
- 81
Partly Sunny
- 68
- 85
Partly Sunny
- 57
- 80
Chance Rain Showers
Today 5 Sep Schuylkill
Mostly sunny. Highs in the upper 70s. North Winds around 5 Mph.
Tonight 5 Sep Schuylkill
Mostly clear. Lows in the mid 50s. North Winds around 5 Mph.
St. Clair Temperature Statistics
September Temperature
Hazleton Municipal Airport (21.1 miles)
Lowest 2 September, 2026
64.4 °FAverage September
71.1 °FHighest 1 September, 2026
82.4 °F
Climate (2021–2026)
Hazleton Municipal Airport (21.1 miles)
Average Low 2021–2026
40.5 °FAverage 2021–2026
49.5 °FAverage High 2021–2026
58.2 °F