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 19.3 ° C ( 66.7°F )  Overcast |
Feels Like : 19.5 ° C / 67.1°F Humidity : % 63 Pressure : 1024 mb Wind Speed : 3.6 kmph / 2.2 miles from WNW 
Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 100 |
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 |
13 ° C | 20.6 ° C | 16.6 ° C | % 63 | 11.5 km/h | 20% |
| 14 September 2026 Mon |  Sunny |
13.7 ° C | 20.8 ° C | 17.1 ° C | % 71 | 9.7 km/h | 8% |
| 15 September 2026 Tue | Sunny |
14 ° C | 23.3 ° C | 18.2 ° C | % 69 | 6.5 km/h | 6% |
| 16 September 2026 Wed |  Light rain shower |
9.6 ° C | 17.6 ° C | 14.1 ° C | % 84 | 10.1 km/h | 82% |
| 17 September 2026 Thu |  Patchy rain nearby |
9.1 ° C | 14.7 ° C | 12 ° C | % 69 | 8.6 km/h | 42% |
| 18 September 2026 Fri | Patchy rain nearby |
8.3 ° C | 13.3 ° C | 11.4 ° C | % 68 | 13.3 km/h | 36% |
| 19 September 2026 Sat | Overcast |
9.9 ° C | 16.5 ° C | 12.6 ° C | % 63 | 9.4 km/h | 10% |
| 20 September 2026 Sun | Sunny |
13.3 ° C | 18.6 ° C | 15.7 ° C | % 66 | 12.6 km/h | 6% |
| 21 September 2026 Mon | Sunny |
12.9 ° C | 20.4 ° C | 16 ° C | % 68 | 9.4 km/h | 5% |
| 22 September 2026 Tue | Sunny |
13.8 ° C | 23.5 ° C | 18 ° C | % 56 | 6.8 km/h | 3% |
| 23 September 2026 Wed | Sunny |
9.7 ° C | 17.1 ° C | 14.7 ° C | % 62 | 11.5 km/h | 5% |
| 24 September 2026 Thu | Sunny |
5.5 ° C | 10.6 ° C | 8.1 ° C | % 67 | 19.8 km/h | 10% |
| 25 September 2026 Fri | Sunny |
3.2 ° C | 10 ° C | 5.9 ° C | % 71 | 16.9 km/h | 10% |
| 26 September 2026 Sat | Sunny |
2.4 ° C | 9.5 ° C | 5.7 ° C | % 69 | 21.6 km/h | 6% |
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