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
| 04 April 2026 Sat 12.1 ° C ( 53.8°F )  Overcast |
Feels Like : 12.6 ° C / 54.6°F Humidity : % 44 Pressure : 1022 mb Wind Speed : 3.6 kmph / 2.2 miles from SE 
Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 100 |
15-day weather forecast for Sion Airport, Sion, Switzerland
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 03 April 2026 Fri |  Partly Cloudy |
-6.5 ° C | 4.2 ° C | -1.5 ° C | % 79 | 6.5 km/h | 0% |
| 04 April 2026 Sat |  Sunny |
-2.7 ° C | 8.9 ° C | 2.8 ° C | % 78 | 6.1 km/h | 0% |
| 05 April 2026 Sun |  Patchy rain nearby |
1 ° C | 11.9 ° C | 5.7 ° C | % 73 | 6.8 km/h | 83% |
| 06 April 2026 Mon | Patchy rain nearby |
1.7 ° C | 12 ° C | 6.8 ° C | % 78 | 5.4 km/h | 81% |
| 07 April 2026 Tue | Sunny |
2.7 ° C | 14.6 ° C | 8.3 ° C | % 63 | 5.8 km/h | 0% |
| 08 April 2026 Wed | Sunny |
4.1 ° C | 14.7 ° C | 8.2 ° C | % 62 | 10.4 km/h | 0% |
| 09 April 2026 Thu |  Moderate rain |
3.8 ° C | 10.6 ° C | 6.6 ° C | % 80 | 8.6 km/h | 87% |
| 10 April 2026 Fri | Patchy rain nearby |
1 ° C | 6.6 ° C | 3 ° C | % 94 | 7.9 km/h | 83% |
| 11 April 2026 Sat | Patchy rain nearby |
1.1 ° C | 5.3 ° C | 2.7 ° C | % 91 | 9 km/h | 86% |
| 12 April 2026 Sun | Patchy rain nearby |
-3 ° C | 5 ° C | 0.6 ° C | % 73 | 12.2 km/h | 66% |
| 13 April 2026 Mon |  Light drizzle |
-5.4 ° C | 0 ° C | -2.7 ° C | % 78 | 11.2 km/h | 79% |
| 14 April 2026 Tue |  Light rain shower |
-5.4 ° C | 0.4 ° C | -3 ° C | % 83 | 10.8 km/h | 71% |
| 15 April 2026 Wed |  Light freezing rain |
-5.3 ° C | 1 ° C | -2.9 ° C | % 82 | 9.7 km/h | 71% |
| 16 April 2026 Thu | Light freezing rain |
-5.9 ° C | 5.6 ° C | -0.1 ° C | % 68 | 7.9 km/h | 88% |
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