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 February 2026 Wed
2.3 ° C
( 36.1°F )
Clear
Clear 		Feels Like : -0.7 ° C / 30.8°F
Humidity : % 64
Pressure : 1002 mb
Wind Speed : 10.4 kmph / 6.5 miles from EE
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
04 February 2026 Wed Partly Cloudy  Partly Cloudy -7.9 ° C 1.1 ° C -4.4 ° C % 81 10.4 km/h 0%
05 February 2026 Thu Sunny Sunny -7.4 ° C 1.6 ° C -3.8 ° C % 78 13 km/h 0%
06 February 2026 Fri Light drizzle Light drizzle -4.4 ° C -0.2 ° C -2.2 ° C % 94 9.7 km/h 82%
07 February 2026 Sat Light freezing rain Light freezing rain -7.5 ° C 0.7 ° C -3.5 ° C % 85 8.3 km/h 80%
08 February 2026 Sun Light freezing rain Light freezing rain -6.8 ° C -0.6 ° C -3.5 ° C % 88 6.1 km/h 69%
09 February 2026 Mon Patchy moderate snow Patchy moderate snow -8.3 ° C 0.1 ° C -4.2 ° C % 82 7.9 km/h 71%
10 February 2026 Tue Light freezing rain Light freezing rain -4.6 ° C 0.2 ° C -2.4 ° C % 94 6.5 km/h 63%
11 February 2026 Wed Light drizzle Light drizzle -1.8 ° C 1 ° C -0.7 ° C % 99 7.9 km/h 77%
12 February 2026 Thu Moderate or heavy rain in area with thunder Moderate or heavy rain in area with thunder -6.3 ° C -1.3 ° C -2.9 ° C % 96 7.6 km/h 88%
13 February 2026 Fri Light snow showers Light snow showers -10.4 ° C -1.1 ° C -4.5 ° C % 96 11.5 km/h 88%
14 February 2026 Sat Patchy light snow Patchy light snow -15.9 ° C -8.4 ° C -12.6 ° C % 90 10.8 km/h 83%
15 February 2026 Sun Partly Cloudy  Partly Cloudy -19.6 ° C -2.7 ° C -10.4 ° C % 76 7.6 km/h 0%
16 February 2026 Mon Fog Fog -3.9 ° C 0.3 ° C -2.2 ° C % 94 11.2 km/h 84%
17 February 2026 Tue Patchy moderate snow Patchy moderate snow -5.8 ° C 0.3 ° C -2.6 ° C % 92 12.6 km/h 87%
Weather forecasts are usually fully updated every 3 hours.

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