S
M
T
W
T
F
S
30
83°
43°
31
85°
45°
1
89°
45°
2
90°
43°
3
90°
39°
4
89°
43°
5
88°
43°
6
84°
42°
7
88°
43°
8
87°
36°
9
81°
38°
10
80°
40°
11
83°
41°
12
79°
40°
13
79°
38°
14
78°
35°
15
76°
35°
16
80°
34°
17
83°
39°
18
82°
40°
19
Hist. Avg.
78°
44°
20
Hist. Avg.
77°
44°
21
Hist. Avg.
77°
44°
22
Hist. Avg.
76°
43°
23
Hist. Avg.
76°
43°
24
Hist. Avg.
76°
43°
25
Hist. Avg.
75°
43°
26
Hist. Avg.
75°
42°
27
Hist. Avg.
74°
42°
28
Hist. Avg.
74°
42°
29
Hist. Avg.
73°
42°
30
Hist. Avg.
73°
41°
1
Hist. Avg.
72°
41°
2
Hist. Avg.
72°
41°
3
Hist. Avg.
71°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Hat Creek
Hat Creek's September 2026 forecast shows daily high temperatures ranging from 76° to 90°, with overnight lows between 34° and 45°. The average high for September is 84° with an average low of 40°. 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 Hat Creek. See also: October | November | December.
