S
M
T
W
T
F
S
30
93°
64°
31
91°
57°
1
85°
54°
2
79°
60°
3
88°
66°
4
90°
63°
5
89°
55°
6
82°
51°
7
74°
51°
8
73°
59°
9
73°
53°
10
74°
59°
11
79°
47°
12
74°
56°
13
76°
59°
14
84°
56°
15
78°
52°
16
71°
49°
17
70°
48°
18
72°
50°
19
80°
50°
20
81°
56°
21
81°
52°
22
76°
45°
23
67°
50°
24
69°
55°
25
78°
51°
26
68°
46°
27
66°
49°
28
69°
49°
29
69°
50°
30
67°
48°
1
64°
47°
2
67°
50°
3
74°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in College Place
College Place's September 2026 forecast shows daily high temperatures ranging from 64° to 93°, with overnight lows between 45° and 66°. The average high for September is 76° with an average low of 53°. 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 College Place. See also: October | November | December.
