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
| 19 December 2025 Fri 6.7 ° C ( 44.1°F )  Mist |
Feels Like : 2.3 ° C / 36.1°F Humidity : % 100 Pressure : 996 mb Wind Speed : 30.2 kmph / 18.8 miles from SSE 
Visibility : 4.8 km Precipitation (rainfall) : 0.13 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 |
|---|---|---|---|---|---|---|---|
| 19 December 2025 Fri |  Moderate or heavy snow showers |
-8.8 ° C | 7.3 ° C | 0.2 ° C | % 86 | 37.1 km/h | 87% |
| 20 December 2025 Sat |  Partly Cloudy |
-10 ° C | 1.6 ° C | -5.4 ° C | % 72 | 33.1 km/h | 0% |
| 21 December 2025 Sun | Partly Cloudy |
-7.6 ° C | 1.9 ° C | -0.2 ° C | % 68 | 29.9 km/h | 0% |
| 22 December 2025 Mon |  Overcast |
-9.3 ° C | -2 ° C | -5.8 ° C | % 73 | 22.7 km/h | 0% |
| 23 December 2025 Tue |  Moderate snow |
-4.2 ° C | 2.6 ° C | -0.8 ° C | % 77 | 24.5 km/h | 60% |
| 24 December 2025 Wed | Partly Cloudy |
-3.8 ° C | 2.3 ° C | -1 ° C | % 79 | 15.8 km/h | 0% |
| 25 December 2025 Thu |  Patchy rain nearby |
-2.1 ° C | 2.2 ° C | 2.4 ° C | % 87 | 23 km/h | 74% |
| 26 December 2025 Fri | Patchy rain nearby |
4.9 ° C | 13.1 ° C | 10.3 ° C | % 88 | 32.8 km/h | 75% |
| 27 December 2025 Sat |  Fog |
3.3 ° C | 9.8 ° C | 6.9 ° C | % 92 | 6.8 km/h | 0% |
| 28 December 2025 Sun | Patchy rain nearby |
9.9 ° C | 11.6 ° C | 10.7 ° C | % 99 | 7.2 km/h | 84% |
| 29 December 2025 Mon | Patchy rain nearby |
-1.9 ° C | 6 ° C | 4.8 ° C | % 86 | 15.8 km/h | 0% |
| 30 December 2025 Tue | Partly Cloudy |
-2.8 ° C | 3.8 ° C | -0.5 ° C | % 61 | 11.9 km/h | 0% |
| 31 December 2025 Wed | Partly Cloudy |
-3.4 ° C | 5.9 ° C | -0.1 ° C | % 59 | 13.7 km/h | 0% |
| 01 January 2026 Thu | Partly Cloudy |
-1.1 ° C | 8.4 ° C | 4.2 ° C | % 77 | 6.5 km/h | 0% |
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