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
| 11 January 2026 Sun -2.2 ° C ( 28°F )  Overcast |
Feels Like : -7.3 ° C / 18.9°F Humidity : % 77 Pressure : 1010 mb Wind Speed : 15.8 kmph / 9.8 miles from W 
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 |
|---|---|---|---|---|---|---|---|
| 11 January 2026 Sun |  Moderate or heavy snow showers |
-4.9 ° C | 0 ° C | -0.8 ° C | % 83 | 31 km/h | 84% |
| 12 January 2026 Mon | Moderate or heavy snow showers |
-5.2 ° C | 0.8 ° C | -2.5 ° C | % 74 | 29.9 km/h | 67% |
| 13 January 2026 Tue | Overcast |
-2 ° C | 4.9 ° C | 1.3 ° C | % 66 | 26.6 km/h | 0% |
| 14 January 2026 Wed |  Patchy rain nearby |
1 ° C | 5.3 ° C | 3.8 ° C | % 86 | 25.9 km/h | 87% |
| 15 January 2026 Thu |  Heavy snow |
-9.7 ° C | -1.4 ° C | -2.5 ° C | % 95 | 22.7 km/h | 64% |
| 16 January 2026 Fri |  Light freezing rain |
-10 ° C | -5.4 ° C | -8.2 ° C | % 88 | 25.9 km/h | 81% |
| 17 January 2026 Sat |  Patchy moderate snow |
-10.8 ° C | 0.6 ° C | -3.5 ° C | % 86 | 25.2 km/h | 75% |
| 18 January 2026 Sun |  Moderate snow |
-7 ° C | -2 ° C | -3.9 ° C | % 86 | 34.2 km/h | 76% |
| 19 January 2026 Mon |  Light snow |
-12.4 ° C | -5.1 ° C | -7.7 ° C | % 89 | 31.3 km/h | 64% |
| 20 January 2026 Tue | Light snow |
-17.9 ° C | -9.7 ° C | -12.1 ° C | % 85 | 14.8 km/h | 61% |
| 21 January 2026 Wed |  Freezing fog |
-19.8 ° C | -7.5 ° C | -14.1 ° C | % 89 | 9.4 km/h | 0% |
| 22 January 2026 Thu |  Partly Cloudy |
-14.4 ° C | 2.2 ° C | -6.1 ° C | % 82 | 6.1 km/h | 0% |
| 23 January 2026 Fri | Light snow |
-2.3 ° C | 1 ° C | -0.6 ° C | % 99 | 5.8 km/h | 67% |
| 24 January 2026 Sat | Patchy rain nearby |
-0.9 ° C | 4.1 ° C | 1.3 ° C | % 99 | 7.2 km/h | 86% |
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