S
M
T
W
T
F
S
30
69°
39°
31
83°
44°
1
77°
57°
2
70°
53°
3
62°
48°
4
65°
46°
5
69°
42°
6
64°
44°
7
67°
50°
8
71°
48°
9
79°
52°
10
79°
48°
11
67°
48°
12
66°
47°
13
60°
42°
14
68°
45°
15
72°
48°
16
74°
47°
17
78°
52°
18
80°
54°
19
79°
53°
20
77°
54°
21
61°
44°
22
72°
48°
23
72°
48°
24
76°
49°
25
76°
50°
26
75°
48°
27
66°
48°
28
63°
42°
29
61°
37°
30
61°
40°
1
67°
43°
2
71°
43°
3
71°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Pullman
Pullman's September 2026 forecast shows daily high temperatures ranging from 60° to 80°, with overnight lows between 37° and 54°. The average high for September is 71° with an average low of 47°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Pullman. See also: October | November | December.
