S
M
T
W
T
F
S
26
72°
54°
27
64°
48°
28
55°
45°
29
63°
39°
30
59°
37°
1
61°
34°
2
64°
32°
3
75°
48°
4
84°
48°
5
61°
48°
6
61°
41°
7
73°
41°
8
75°
50°
9
81°
45°
10
73°
43°
11
81°
48°
12
84°
59°
13
79°
45°
14
82°
57°
15
91°
59°
16
90°
64°
17
84°
63°
18
73°
55°
19
57°
48°
20
64°
43°
21
63°
52°
22
75°
59°
23
75°
57°
24
82°
52°
25
86°
61°
26
86°
61°
27
86°
57°
28
84°
63°
29
79°
68°
30
81°
66°
31
82°
68°
1
88°
64°
2
79°
63°
3
82°
57°
4
81°
66°
5
84°
68°
6
83°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Sidney
Sidney's May 2026 forecast shows daily high temperatures ranging from 83° to 83°, with overnight lows between 69° and 69°. The average high for May is 83° with an average low of 69°. 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 Sidney. See also: June | July | August.
