S
M
T
W
T
F
S
30
90°
70°
31
90°
69°
1
93°
68°
2
93°
69°
3
90°
68°
4
87°
65°
5
87°
63°
6
88°
63°
7
91°
67°
8
92°
69°
9
92°
69°
10
91°
68°
11
91°
67°
12
90°
66°
13
89°
65°
14
90°
66°
15
91°
66°
16
83°
60°
17
83°
64°
18
Hist. Avg.
86°
62°
19
Hist. Avg.
86°
62°
20
Hist. Avg.
85°
61°
21
Hist. Avg.
85°
61°
22
Hist. Avg.
85°
60°
23
Hist. Avg.
84°
60°
24
Hist. Avg.
84°
60°
25
Hist. Avg.
84°
59°
26
Hist. Avg.
83°
59°
27
Hist. Avg.
83°
58°
28
Hist. Avg.
83°
58°
29
Hist. Avg.
82°
58°
30
Hist. Avg.
82°
57°
1
Hist. Avg.
82°
57°
2
Hist. Avg.
81°
56°
3
Hist. Avg.
81°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Pullman
Pullman's September 2026 forecast shows daily high temperatures ranging from 83° to 93°, with overnight lows between 60° and 70°. The average high for September is 90° with an average low of 66°. 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.
