Cambria County Airport (JST) 15 Day Weather Forecast, Johnstown United States
Current weather conditions and 15 day weather forecast for Cambria County Airport in Johnstown, United States including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain, wind speed, cloud, pressure, and UV index.
Current weather conditions at JST
| 13 September 2026 Sun 16.2 ° C ( 61.2°F )  Mist |
Feels Like : 17 ° C / 62.6°F Humidity : % 96 Pressure : 1016 mb Wind Speed : 5.4 kmph / 3.4 miles from W 
Visibility : 2 km Precipitation (rainfall) : 0.14 mm Cloud (%) : 100 |
15-day weather forecast for Cambria County Airport, Johnstown, United States
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 13 September 2026 Sun |  Patchy rain nearby |
16 ° C | 22.6 ° C | 20.1 ° C | % 89 | 15.8 km/h | 85% |
| 14 September 2026 Mon |  Sunny |
8.5 ° C | 17.3 ° C | 13 ° C | % 73 | 17.6 km/h | 10% |
| 15 September 2026 Tue | Sunny |
9.2 ° C | 20.7 ° C | 15 ° C | % 67 | 16.2 km/h | 8% |
| 16 September 2026 Wed | Patchy rain nearby |
15.8 ° C | 25.2 ° C | 19.7 ° C | % 75 | 8.3 km/h | 59% |
| 17 September 2026 Thu | Patchy rain nearby |
16.8 ° C | 21.7 ° C | 19.4 ° C | % 89 | 15.5 km/h | 63% |
| 18 September 2026 Fri | Sunny |
15.7 ° C | 19.5 ° C | 17.4 ° C | % 74 | 8.6 km/h | 10% |
| 19 September 2026 Sat |  Overcast |
13.3 ° C | 19.4 ° C | 16.2 ° C | % 83 | 19.1 km/h | 21% |
| 20 September 2026 Sun |  Light rain shower |
15.7 ° C | 22.6 ° C | 19.3 ° C | % 88 | 17.6 km/h | 83% |
| 21 September 2026 Mon | Light rain shower |
5.3 ° C | 15.8 ° C | 9.8 ° C | % 94 | 18 km/h | 93% |
| 22 September 2026 Tue | Light rain shower |
4 ° C | 9.3 ° C | 5.5 ° C | % 94 | 26.6 km/h | 93% |
| 23 September 2026 Wed | Light rain shower |
7 ° C | 11.5 ° C | 10 ° C | % 98 | 19.4 km/h | 94% |
| 24 September 2026 Thu | Light rain shower |
7.8 ° C | 13 ° C | 10.3 ° C | % 92 | 12.2 km/h | 79% |
| 25 September 2026 Fri |  Fog |
8.3 ° C | 14.2 ° C | 10.7 ° C | % 95 | 9.4 km/h | 77% |
| 26 September 2026 Sat | Fog |
10.6 ° C | 15.9 ° C | 12.6 ° C | % 93 | 10.8 km/h | 76% |
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