S
M
T
W
T
F
S
30
99°
66°
31
99°
70°
1
99°
70°
2
98°
70°
3
96°
70°
4
98°
71°
5
102°
72°
6
103°
71°
7
102°
72°
8
100°
72°
9
98°
71°
10
98°
71°
11
93°
74°
12
100°
71°
13
98°
69°
14
99°
71°
15
99°
70°
16
97°
72°
17
100°
72°
18
99°
68°
19
97°
62°
20
98°
64°
21
98°
69°
22
97°
66°
23
91°
71°
24
91°
59°
25
89°
56°
26
91°
62°
27
91°
61°
28
91°
64°
29
95°
62°
30
94°
65°
1
85°
71°
2
83°
69°
3
75°
64°
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 75° to 75°, with overnight lows between 64° and 64°. The average high for September is 75° with an average low of 64°. 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.
