S
M
T
W
T
F
S
30
59°
36°
31
60°
37°
1
60°
38°
2
59°
39°
3
58°
36°
4
59°
34°
5
59°
33°
6
62°
34°
7
61°
39°
8
59°
37°
9
61°
38°
10
62°
36°
11
61°
31°
12
60°
28°
13
58°
30°
14
58°
32°
15
58°
30°
16
53°
29°
17
53°
29°
18
55°
28°
19
52°
30°
20
51°
31°
21
50°
32°
22
49°
31°
23
50°
31°
24
49°
32°
25
50°
30°
26
50°
27°
27
Hist. Avg.
49°
30°
28
Hist. Avg.
49°
29°
29
Hist. Avg.
48°
29°
30
Hist. Avg.
48°
28°
1
Hist. Avg.
47°
28°
2
Hist. Avg.
46°
28°
3
Hist. Avg.
46°
27°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Willow Creek
Willow Creek's September 2026 forecast shows daily high temperatures ranging from 49° to 62°, with overnight lows between 27° and 39°. The average high for September is 56° with an average low of 33°. 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 Willow Creek. See also: October | November | December.
