S
M
T
W
T
F
S
26
68°
37°
27
68°
36°
28
66°
39°
29
61°
46°
30
59°
32°
1
68°
30°
2
77°
39°
3
82°
45°
4
79°
52°
5
77°
48°
6
75°
52°
7
59°
48°
8
70°
41°
9
72°
43°
10
75°
48°
11
66°
52°
12
54°
41°
13
63°
37°
14
50°
45°
15
54°
43°
16
50°
45°
17
61°
41°
18
68°
41°
19
66°
52°
20
63°
52°
21
66°
52°
22
75°
48°
23
79°
50°
24
84°
59°
25
86°
59°
26
N/A
27
82°
54°
28
75°
49°
29
79°
51°
30
82°
55°
31
80°
54°
1
70°
54°
2
77°
55°
3
71°
53°
4
70°
51°
5
70°
50°
6
70°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Hallstatt
Hallstatt's May 2026 forecast shows daily high temperatures ranging from 70° to 82°, with overnight lows between 49° and 55°. The average high for May is 75° with an average low of 53°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Hallstatt. See also: June | July | August.