S
M
T
W
T
F
S
30
68°
49°
31
72°
54°
1
76°
58°
2
78°
58°
3
77°
57°
4
68°
47°
5
69°
48°
6
68°
50°
7
72°
50°
8
73°
57°
9
69°
49°
10
69°
48°
11
70°
50°
12
69°
57°
13
67°
49°
14
66°
47°
15
65°
48°
16
66°
48°
17
67°
50°
18
69°
49°
19
74°
53°
20
74°
48°
21
66°
50°
22
66°
49°
23
62°
48°
24
64°
47°
25
61°
44°
26
64°
45°
27
62°
47°
28
64°
53°
29
69°
52°
30
59°
46°
1
60°
48°
2
Hist. Avg.
65°
50°
3
Hist. Avg.
65°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Tacoma
Tacoma's September 2026 forecast shows daily high temperatures ranging from 59° to 78°, with overnight lows between 44° and 58°. The average high for September is 68° with an average low of 50°. 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 Tacoma. See also: October | November | December.
