This year's long-range forecast for Sion reveals higher temperatures, peaking at 26°, indicative of a warming trend against the historical average.
Select a month and click on a day for more information:
Saturday
Aug 1
18° / 8°
Sunday
Aug 2
18° / 8°
Monday
Aug 3
16° / 7°
Tuesday
Aug 4
25° / 12°
Wednesday
Aug 5
22° / 12°
Thursday
Aug 6
22° / 11°
Friday
Aug 7
22° / 10°
Saturday
Aug 8
24° / 11°
Sunday
Aug 9
25° / 12°
Monday
Aug 10
24° / 13°
Tuesday
Aug 11
24° / 12°
Wednesday
Aug 12
25° / 12°
Thursday
Aug 13
26° / 14°
Friday
Aug 14
26° / 14°
Saturday
Aug 15
26° / 13°
Sunday
Aug 16
25° / 12°
Monday
Aug 17
17° / 10°
Tuesday
Aug 18
18° / 8°
Wednesday
Aug 19
19° / 9°
Thursday
Aug 20
19° / 9°
Friday
Aug 21
19° / 8°
Saturday
Aug 22
20° / 9°
Sunday
Aug 23
19° / 9°
Monday
Aug 24
19° / 8°
Tuesday
Aug 25
20° / 8°
Wednesday
Aug 26
19° / 8°
Thursday
Aug 27
17° / 8°
Friday
Aug 28
14° / 7°
Saturday
Aug 29
15° / 6°
Sunday
Aug 30
14° / 6°
Monday
Aug 31
17° / 5°
Sion 30 days weather forecast
Check out our estimated 30 days weather forecast for Sion, this data is based on the average weather in Sion in the last few years.
For a more accurate and detailed forecast, check out the 14 day weather for Sion next to the desired date.