Sion Weather Today — Valais, Switzerland
Current temperature, rain chance, humidity, wind and air quality in Sion, plus an hourly and 3-day forecast. Updated through the day.
06:31
Sat, 19 Sep 2026
📍 Valais, Switzerland
Sion??
7
°C
Cloudy
Feels 5°C · 45°F
💧 88% Humidity
💨 → 4.7 km/h ENE
👁 10 km Visibility
🌧 0 mm Precip
☁ 63% Cloud
☀️ UV Low
🌿 AQI Good
☀️ UV Index
0
Low
🔵 Pressure
1023
hPa · 30.21 in
💨 Wind
4.7
km/h · Gust 19.1 km/h
→ ENE
💧 Humidity
88%
Dew point 5.5°C
👁 Visibility
10
km · 6 miles
🌡 Heat Index
7.4°
Wind chill 6.9°C
🌿 Air Quality
Good
US EPA Index: 1
🌅
Sunrise
07:13 AM
🌇
Sunset
07:34 PM
📅 3-Day Forecast
Saturday
19 Sep 2026
Sunny
17°
/
7°
💧68%
🌧0mm
💨8
☀️UV 5.8
Sunday
20 Sep 2026
Overcast
18°
/
10°
💧64%
🌧0mm
💨9
☀️UV 5.6
Monday
21 Sep 2026
Overcast
17°
/
9°
💧68%
🌧0mm
💨8
☀️UV 5.5
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