S
M
T
W
T
F
S
26
58°
41°
27
59°
33°
28
63°
39°
29
72°
39°
30
74°
42°
1
76°
44°
2
73°
49°
3
75°
50°
4
63°
47°
5
74°
47°
6
80°
50°
7
82°
51°
8
84°
46°
9
86°
51°
10
92°
50°
11
92°
54°
12
91°
57°
13
80°
60°
14
83°
50°
15
81°
51°
16
72°
52°
17
54°
40°
18
65°
39°
19
72°
39°
20
80°
45°
21
80°
54°
22
83°
55°
23
53°
34°
24
55°
33°
25
50°
33°
26
40°
26°
27
36°
31°
28
45°
35°
29
57°
30°
30
58°
31°
31
61°
33°
1
68°
37°
2
69°
38°
3
68°
37°
4
69°
38°
5
59°
33°
6
63°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Reno Southwest
Reno Southwest's May 2026 forecast shows daily high temperatures ranging from 36° to 69°, with overnight lows between 26° and 38°. The average high for May is 57° with an average low of 34°. 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 Reno Southwest. See also: June | July | August.
