S
M
T
W
T
F
S
30
83°
58°
31
89°
55°
1
90°
61°
2
92°
55°
3
92°
54°
4
96°
53°
5
96°
57°
6
92°
60°
7
93°
61°
8
90°
62°
9
83°
56°
10
92°
47°
11
93°
47°
12
79°
49°
13
95°
49°
14
92°
64°
15
76°
56°
16
84°
49°
17
84°
63°
18
89°
58°
19
82°
53°
20
74°
52°
21
78°
47°
22
86°
48°
23
76°
55°
24
76°
56°
25
74°
54°
26
90°
45°
27
89°
49°
28
78°
60°
29
78°
54°
30
72°
52°
1
75°
47°
2
86°
42°
3
86°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Pierce
Pierce's September 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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 Pierce. See also: October | November | December.
