S
M
T
W
T
F
S
26
58°
40°
27
64°
35°
28
63°
38°
29
59°
36°
30
60°
31°
1
70°
40°
2
74°
42°
3
75°
45°
4
78°
52°
5
79°
54°
6
75°
53°
7
69°
49°
8
71°
51°
9
73°
54°
10
76°
55°
11
76°
60°
12
67°
50°
13
63°
47°
14
64°
48°
15
65°
51°
16
67°
51°
17
70°
52°
18
72°
53°
19
71°
51°
20
64°
46°
21
64°
47°
22
65°
46°
23
65°
47°
24
66°
49°
25
68°
54°
26
71°
55°
27
72°
55°
28
70°
54°
29
73°
55°
30
72°
53°
31
71°
52°
1
74°
56°
2
73°
55°
3
73°
56°
4
72°
52°
5
68°
49°
6
70°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Brno
Brno's May 2026 forecast shows daily high temperatures ranging from 63° to 79°, with overnight lows between 46° and 60°. The average high for May is 70° with an average low of 52°. 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 Brno. See also: June | July | August.
