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
| 15 May 2026 Fri 6.1 ° C ( 43°F )  Overcast |
Feels Like : 2.8 ° C / 37°F Humidity : % 79 Pressure : 1013 mb Wind Speed : 17.3 kmph / 10.7 miles from NW 
Visibility : 16 km Precipitation (rainfall) : 0 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 |
|---|---|---|---|---|---|---|---|
| 15 May 2026 Fri |  Sunny |
4 ° C | 18.8 ° C | 10.2 ° C | % 73 | 18.7 km/h | 0% |
| 16 May 2026 Sat |  Patchy rain nearby |
6.7 ° C | 21 ° C | 13.1 ° C | % 73 | 18.7 km/h | 87% |
| 17 May 2026 Sun | Patchy rain nearby |
14.7 ° C | 23.9 ° C | 18.5 ° C | % 83 | 17.6 km/h | 86% |
| 18 May 2026 Mon | Patchy rain nearby |
15.3 ° C | 28.9 ° C | 20.5 ° C | % 71 | 13.3 km/h | 87% |
| 19 May 2026 Tue | Patchy rain nearby |
16 ° C | 27.9 ° C | 20.2 ° C | % 78 | 23.8 km/h | 60% |
| 20 May 2026 Wed | Patchy rain nearby |
14.1 ° C | 19.9 ° C | 16.2 ° C | % 75 | 12.6 km/h | 89% |
| 21 May 2026 Thu | Patchy rain nearby |
12.3 ° C | 18.9 ° C | 15 ° C | % 78 | 18 km/h | 84% |
| 22 May 2026 Fri | Patchy rain nearby |
10.4 ° C | 18.7 ° C | 15 ° C | % 97 | 18 km/h | 84% |
| 23 May 2026 Sat | Patchy rain nearby |
6.2 ° C | 15.7 ° C | 10.1 ° C | % 82 | 22 km/h | 89% |
| 24 May 2026 Sun |  Partly Cloudy |
5.7 ° C | 19.8 ° C | 12.2 ° C | % 68 | 9.7 km/h | 0% |
| 25 May 2026 Mon | Sunny |
8.4 ° C | 22.2 ° C | 15.7 ° C | % 60 | 14.8 km/h | 0% |
| 26 May 2026 Tue | Patchy rain nearby |
9.6 ° C | 22.7 ° C | 16.3 ° C | % 73 | 10.8 km/h | 87% |
| 27 May 2026 Wed | Patchy rain nearby |
15.9 ° C | 24.8 ° C | 20.4 ° C | % 77 | 19.8 km/h | 79% |
| 28 May 2026 Thu |  Moderate rain |
19.1 ° C | 22.1 ° C | 20.1 ° C | % 98 | 20.9 km/h | 89% |
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