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
| 11 January 2026 Sun 1.3 ° C ( 34.3°F )  Partly cloudy |
Feels Like : -0.3 ° C / 31.5°F Humidity : % 80 Pressure : 1022 mb Wind Speed : 5.4 kmph / 3.4 miles from E 
Visibility : 10 km Precipitation (rainfall) : 0.01 mm Cloud (%) : 50 |
15-day weather forecast for Sion Airport, Sion, Switzerland
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 11 January 2026 Sun |  Moderate or heavy snow showers |
-13.2 ° C | -4.6 ° C | -9.5 ° C | % 88 | 7.6 km/h | 75% |
| 12 January 2026 Mon |  Light drizzle |
-8 ° C | 0.8 ° C | -2.7 ° C | % 90 | 7.6 km/h | 62% |
| 13 January 2026 Tue | Partly Cloudy |
-6.2 ° C | 1.5 ° C | -3.3 ° C | % 84 | 11.2 km/h | 0% |
| 14 January 2026 Wed | Moderate or heavy snow showers |
-7.5 ° C | 0.2 ° C | -3.7 ° C | % 90 | 11.5 km/h | 79% |
| 15 January 2026 Thu |  Mist |
-6.7 ° C | -0.9 ° C | -4 ° C | % 94 | 9.7 km/h | 65% |
| 16 January 2026 Fri |  Light freezing rain |
-6.5 ° C | -0.5 ° C | -3.5 ° C | % 92 | 11.2 km/h | 60% |
| 17 January 2026 Sat | Light freezing rain |
-10.8 ° C | -1.7 ° C | -6.2 ° C | % 90 | 10.1 km/h | 83% |
| 18 January 2026 Sun | Light freezing rain |
-9.8 ° C | -2.9 ° C | -5.9 ° C | % 88 | 16.2 km/h | 83% |
| 19 January 2026 Mon | Light freezing rain |
-10.5 ° C | -3 ° C | -5.8 ° C | % 96 | 7.2 km/h | 71% |
| 20 January 2026 Tue | Partly Cloudy |
-14.1 ° C | -2.3 ° C | -8.1 ° C | % 81 | 9.7 km/h | 0% |
| 21 January 2026 Wed |  Light rain |
-8.2 ° C | -1.5 ° C | -4.6 ° C | % 90 | 7.9 km/h | 71% |
| 22 January 2026 Thu | Light freezing rain |
-8.5 ° C | -2.5 ° C | -5.1 ° C | % 93 | 5.4 km/h | 77% |
| 23 January 2026 Fri | Partly Cloudy |
-13.7 ° C | -3.7 ° C | -8.8 ° C | % 90 | 7.2 km/h | 0% |
| 24 January 2026 Sat | Light freezing rain |
-13.4 ° C | -1.9 ° C | -7.4 ° C | % 85 | 10.1 km/h | 73% |
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