Johnstown Weather Forecast
- 56
- 83
Mostly Sunny
- 54
- 81
Partly Sunny
- 54
- 78
Slight Chance Rain Showers
- 55
- 75
Mostly Cloudy
- 55
- 81
Mostly Sunny
- 53
- 83
Slight Chance Rain Showers
Today 14 Sep Cambria
Sunny. Very warm with Highs around 80. Northeast Winds around 5 Mph.
Tonight 14 Sep Cambria
Mostly clear. Lows in the upper 50s. Northeast Winds around 5 Mph.
Johnstown Temperature Statistics
September Temperature
Johnstown - Cambria County Airport (4.3 miles)
Lowest 8 September, 2025
44.1 °FAverage September
61.1 °FHighest 3 September, 2025
77 °F
Climate (2020–Present)
Johnstown - Cambria County Airport (4.3 miles)
Average Low 2020–2025
43 °FAverage 2020–2025
50.6 °FAverage High 2020–2025
58.5 °F