S
M
T
W
T
F
S
31
88°
49°
1
91°
49°
2
76°
53°
3
85°
49°
4
69°
45°
5
76°
35°
6
83°
41°
7
87°
44°
8
83°
50°
9
86°
47°
10
78°
47°
11
84°
46°
12
85°
48°
13
83°
57°
14
85°
47°
15
80°
50°
16
81°
42°
17
82°
46°
18
80°
48°
19
81°
49°
20
88°
44°
21
87°
43°
22
72°
42°
23
84°
43°
24
69°
45°
25
79°
39°
26
71°
43°
27
72°
37°
28
64°
42°
29
83°
45°
30
76°
48°
1
75°
42°
2
68°
38°
3
71°
32°
4
55°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Willow Creek
Willow Creek's September 2025 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 Willow Creek. See also: October | November | December.
