Grenchen Airport (ZHI) 15 Day Weather Forecast, Switzerland
Current weather conditions and 15 day weather forecast for Grenchen Airport in , Switzerland 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 ZHI
| 13 September 2026 Sun 14 ° C ( 57.3°F )  Overcast |
Feels Like : 12.7 ° C / 54.9°F Humidity : % 67 Pressure : 1025 mb Wind Speed : 4.7 kmph / 2.9 miles from WSW 
Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 99 |
15-day weather forecast for Grenchen Airport, , Switzerland
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 13 September 2026 Sun | Overcast |
12.9 ° C | 21.1 ° C | 16.6 ° C | % 63 | 9.4 km/h | 38% |
| 14 September 2026 Mon |  Sunny |
15.1 ° C | 21.5 ° C | 18.2 ° C | % 66 | 9.7 km/h | 17% |
| 15 September 2026 Tue | Sunny |
13.2 ° C | 24.1 ° C | 18.4 ° C | % 68 | 8.6 km/h | 6% |
| 16 September 2026 Wed |  Patchy rain nearby |
10.3 ° C | 18.5 ° C | 14.6 ° C | % 80 | 17.3 km/h | 59% |
| 17 September 2026 Thu | Patchy rain nearby |
10 ° C | 16.2 ° C | 13.4 ° C | % 69 | 8.3 km/h | 57% |
| 18 September 2026 Fri | Overcast |
11.4 ° C | 14.3 ° C | 12.8 ° C | % 62 | 10.8 km/h | 11% |
| 19 September 2026 Sat | Overcast |
10.3 ° C | 18.6 ° C | 14 ° C | % 62 | 6.8 km/h | 10% |
| 20 September 2026 Sun | Sunny |
12.6 ° C | 19.8 ° C | 15.7 ° C | % 55 | 10.8 km/h | 7% |
| 21 September 2026 Mon |  Mist |
12.3 ° C | 18.1 ° C | 14.5 ° C | % 78 | 9.7 km/h | 15% |
| 22 September 2026 Tue | Sunny |
10.2 ° C | 17 ° C | 13.1 ° C | % 62 | 7.6 km/h | 5% |
| 23 September 2026 Wed |  Fog |
7.7 ° C | 12.3 ° C | 9.4 ° C | % 85 | 4.3 km/h | 89% |
| 24 September 2026 Thu | Fog |
8.1 ° C | 17.5 ° C | 12.7 ° C | % 82 | 4.7 km/h | 18% |
| 25 September 2026 Fri |  Light rain shower |
10.3 ° C | 13.5 ° C | 12.5 ° C | % 92 | 5.4 km/h | 88% |
| 26 September 2026 Sat | Mist |
9.6 ° C | 16.7 ° C | 12.6 ° C | % 87 | 8.6 km/h | 86% |
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