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
| 01 February 2026 Sun -1.7 ° C ( 28.9°F )  Clear |
Feels Like : -3.5 ° C / 25.6°F Humidity : % 86 Pressure : 1012 mb Wind Speed : 5 kmph / 3.1 miles from E 
Visibility : 10 km Precipitation (rainfall) : 0 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 |
|---|---|---|---|---|---|---|---|
| 01 February 2026 Sun |  Partly Cloudy |
-9.1 ° C | -1 ° C | -5.5 ° C | % 80 | 6.1 km/h | 0% |
| 02 February 2026 Mon |  Light freezing rain |
-9.1 ° C | 0.1 ° C | -5.2 ° C | % 78 | 13.7 km/h | 89% |
| 03 February 2026 Tue | Light freezing rain |
-7.6 ° C | 0.5 ° C | -4 ° C | % 80 | 15.5 km/h | 78% |
| 04 February 2026 Wed |  Light drizzle |
-8 ° C | -0.2 ° C | -3.9 ° C | % 87 | 10.1 km/h | 87% |
| 05 February 2026 Thu |  Moderate snow |
-7.1 ° C | 0.8 ° C | -2.9 ° C | % 90 | 9.4 km/h | 71% |
| 06 February 2026 Fri |  Patchy heavy snow |
-5.4 ° C | 0.6 ° C | -2.6 ° C | % 92 | 7.9 km/h | 87% |
| 07 February 2026 Sat | Partly Cloudy |
-6.7 ° C | 0.7 ° C | -3.5 ° C | % 83 | 9.4 km/h | 0% |
| 08 February 2026 Sun | Partly Cloudy |
-8.1 ° C | 0.2 ° C | -4.2 ° C | % 81 | 10.1 km/h | 0% |
| 09 February 2026 Mon | Light freezing rain |
-4.1 ° C | 1.4 ° C | -2.1 ° C | % 84 | 9.7 km/h | 87% |
| 10 February 2026 Tue | Light drizzle |
-6.1 ° C | -2.1 ° C | -3.9 ° C | % 94 | 9.4 km/h | 88% |
| 11 February 2026 Wed | Light freezing rain |
-9.8 ° C | -2.6 ° C | -6.8 ° C | % 83 | 6.1 km/h | 77% |
| 12 February 2026 Thu |  Mist |
-8.1 ° C | -1.8 ° C | -4.6 ° C | % 90 | 6.5 km/h | 70% |
| 13 February 2026 Fri |  Light snow |
-6.6 ° C | -1.7 ° C | -3.7 ° C | % 94 | 11.9 km/h | 65% |
| 14 February 2026 Sat |  Light sleet showers |
-9.2 ° C | -3 ° C | -4.8 ° C | % 95 | 14.4 km/h | 87% |
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