Sion Airport (SIR) 15 Day Weather Forecast, Sion Switzerland
Current weather conditions and 15 day weather forecast for Sion Airport in Sion, 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 SIR
| 24 August 2026 Mon 12.6 ° C ( 54.6°F )  Clear |
Feels Like : 11.1 ° C / 52°F Humidity : % 72 Pressure : 1022 mb Wind Speed : 6.8 kmph / 4.3 miles from E 
Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 6 |
15-day weather forecast for Sion Airport, Sion, Switzerland
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 24 August 2026 Mon | Sunny |
11.9 ° C | 21.9 ° C | 16.2 ° C | % 59 | 9 km/h | 61% |
| 25 August 2026 Tue |  Patchy rain nearby |
10.8 ° C | 19.1 ° C | 15.1 ° C | % 70 | 7.2 km/h | 73% |
| 26 August 2026 Wed | Sunny |
12.9 ° C | 22.2 ° C | 17.1 ° C | % 62 | 11.2 km/h | 8% |
| 27 August 2026 Thu |  Overcast |
14.4 ° C | 24 ° C | 18.7 ° C | % 61 | 11.9 km/h | 21% |
| 28 August 2026 Fri |  Light rain shower |
10.5 ° C | 16.5 ° C | 14.1 ° C | % 82 | 9.4 km/h | 83% |
| 29 August 2026 Sat | Patchy rain nearby |
7.4 ° C | 14.2 ° C | 11.2 ° C | % 76 | 9.4 km/h | 78% |
| 30 August 2026 Sun | Sunny |
9.1 ° C | 18.6 ° C | 13.2 ° C | % 64 | 10.1 km/h | 5% |
| 31 August 2026 Mon | Sunny |
11.7 ° C | 17.5 ° C | 14.9 ° C | % 68 | 8.3 km/h | 39% |
| 01 September 2026 Tue | Patchy rain nearby |
8.3 ° C | 15.8 ° C | 12.7 ° C | % 83 | 9.7 km/h | 69% |
| 02 September 2026 Wed | Sunny |
9.9 ° C | 18.7 ° C | 13.8 ° C | % 71 | 8.6 km/h | 9% |
| 03 September 2026 Thu | Light rain shower |
3.5 ° C | 13.2 ° C | 9.2 ° C | % 88 | 10.1 km/h | 90% |
| 04 September 2026 Fri | Patchy rain nearby |
3.4 ° C | 10.2 ° C | 6.8 ° C | % 83 | 7.9 km/h | 70% |
| 05 September 2026 Sat | Light rain shower |
4.9 ° C | 13.5 ° C | 9 ° C | % 79 | 8.6 km/h | 69% |
| 06 September 2026 Sun | Sunny |
9.8 ° C | 18.4 ° C | 13 ° C | % 64 | 13.3 km/h | 7% |
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