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
| 03 October 2026 Sat 11.9 ° C ( 53.3°F )  Light rain shower |
Feels Like : 10.7 ° C / 51.3°F Humidity : % 84 Pressure : 1028 mb Wind Speed : 7.2 kmph / 4.5 miles from NNW 
Visibility : 10 km Precipitation (rainfall) : 0.16 mm Cloud (%) : 99 |
15-day weather forecast for Sion Airport, Sion, Switzerland
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 03 October 2026 Sat |  Overcast |
8.1 ° C | 17.7 ° C | 11.8 ° C | % 76 | 7.2 km/h | 52% |
| 04 October 2026 Sun | Overcast |
8.6 ° C | 17.6 ° C | 12 ° C | % 77 | 8.3 km/h | 75% |
| 05 October 2026 Mon |  Sunny |
7.5 ° C | 17.6 ° C | 11.4 ° C | % 78 | 7.6 km/h | 42% |
| 06 October 2026 Tue | Sunny |
6.5 ° C | 17.3 ° C | 10.8 ° C | % 74 | 9.7 km/h | 17% |
| 07 October 2026 Wed | Overcast |
5.7 ° C | 17.7 ° C | 10.7 ° C | % 66 | 8.6 km/h | 10% |
| 08 October 2026 Thu | Overcast |
8 ° C | 12.5 ° C | 9.9 ° C | % 80 | 7.2 km/h | 75% |
| 09 October 2026 Fri |  Partly Cloudy |
7.2 ° C | 15.4 ° C | 9.8 ° C | % 84 | 7.9 km/h | 22% |
| 10 October 2026 Sat |  Patchy rain nearby |
7.1 ° C | 12.7 ° C | 9.4 ° C | % 83 | 3.2 km/h | 26% |
| 11 October 2026 Sun | Sunny |
4.8 ° C | 14.1 ° C | 8.4 ° C | % 79 | 7.9 km/h | 13% |
| 12 October 2026 Mon | Sunny |
3.4 ° C | 15.3 ° C | 7.9 ° C | % 69 | 8.3 km/h | 9% |
| 13 October 2026 Tue | Sunny |
4.3 ° C | 16.9 ° C | 8.9 ° C | % 59 | 6.8 km/h | 6% |
| 14 October 2026 Wed | Sunny |
5 ° C | 18.1 ° C | 10.1 ° C | % 56 | 8.3 km/h | 4% |
| 15 October 2026 Thu | Overcast |
5.5 ° C | 13.9 ° C | 8.6 ° C | % 69 | 10.4 km/h | 17% |
| 16 October 2026 Fri |  Mist |
3.4 ° C | 9.9 ° C | 5.8 ° C | % 88 | 9 km/h | 30% |
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