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
| 15 May 2026 Fri 9.1 ° C ( 48.4°F )  Light rain shower |
Feels Like : 8.1 ° C / 46.5°F Humidity : % 62 Pressure : 1000 mb Wind Speed : 7.6 kmph / 4.7 miles from WNW 
Visibility : 10 km Precipitation (rainfall) : 0.21 mm Cloud (%) : 0 |
15-day weather forecast for Sion Airport, Sion, Switzerland
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 14 May 2026 Thu |  Patchy light rain in area with thunder |
-2.8 ° C | 3.1 ° C | 0.5 ° C | % 93 | 11.9 km/h | 99% |
| 15 May 2026 Fri |  Light drizzle |
-2.7 ° C | 1.3 ° C | -0.8 ° C | % 93 | 11.5 km/h | 90% |
| 16 May 2026 Sat |  Patchy rain nearby |
-3.2 ° C | 2.8 ° C | -0.2 ° C | % 89 | 9 km/h | 82% |
| 17 May 2026 Sun | Patchy rain nearby |
-4 ° C | 7.3 ° C | 2.1 ° C | % 79 | 9.4 km/h | 87% |
| 18 May 2026 Mon | Patchy rain nearby |
-0.8 ° C | 8.2 ° C | 4.1 ° C | % 80 | 8.3 km/h | 79% |
| 19 May 2026 Tue | Patchy rain nearby |
1 ° C | 12.3 ° C | 4.5 ° C | % 82 | 9 km/h | 81% |
| 20 May 2026 Wed | Patchy rain nearby |
3.1 ° C | 12 ° C | 7.8 ° C | % 78 | 9.7 km/h | 75% |
| 21 May 2026 Thu |  Sunny |
3.1 ° C | 15.4 ° C | 9.2 ° C | % 68 | 11.2 km/h | 0% |
| 22 May 2026 Fri | Sunny |
3.7 ° C | 15.4 ° C | 9.3 ° C | % 64 | 13 km/h | 0% |
| 23 May 2026 Sat |  Moderate rain |
3.3 ° C | 11.1 ° C | 6 ° C | % 81 | 7.9 km/h | 83% |
| 24 May 2026 Sun | Patchy rain nearby |
2.5 ° C | 13.2 ° C | 7.9 ° C | % 73 | 7.6 km/h | 75% |
| 25 May 2026 Mon | Patchy rain nearby |
4.7 ° C | 13.7 ° C | 9 ° C | % 77 | 7.9 km/h | 85% |
| 26 May 2026 Tue | Patchy rain nearby |
5.6 ° C | 18.9 ° C | 8.9 ° C | % 84 | 7.9 km/h | 89% |
| 27 May 2026 Wed | Patchy rain nearby |
5.9 ° C | 12.2 ° C | 8.3 ° C | % 87 | 5.4 km/h | 89% |
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