S
M
T
W
T
F
S
26
86°
65°
27
87°
71°
28
77°
66°
29
71°
59°
30
67°
53°
1
70°
52°
2
75°
47°
3
N/A
4
78°
64°
5
80°
62°
6
67°
52°
7
71°
44°
8
75°
55°
9
80°
58°
10
80°
58°
11
79°
54°
12
79°
56°
13
83°
57°
14
82°
61°
15
83°
60°
16
80°
58°
17
76°
62°
18
76°
63°
19
79°
64°
20
80°
64°
21
82°
57°
22
76°
56°
23
77°
57°
24
76°
60°
25
77°
58°
26
77°
57°
27
78°
58°
28
79°
59°
29
79°
64°
30
80°
66°
31
79°
67°
1
81°
66°
2
82°
65°
3
83°
67°
4
82°
68°
5
80°
68°
6
80°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Pullman
Pullman's May 2026 forecast shows daily high temperatures ranging from 67° to 83°, with overnight lows between 44° and 68°. The average high for May is 79° with an average low of 60°. 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 Pullman. See also: June | July | August.