S
M
T
W
T
F
S
30
71°
48°
31
80°
42°
1
78°
45°
2
83°
51°
3
78°
48°
4
85°
46°
5
78°
46°
6
79°
48°
7
70°
52°
8
72°
42°
9
76°
40°
10
86°
48°
11
68°
46°
12
67°
48°
13
76°
43°
14
65°
35°
15
73°
38°
16
69°
39°
17
74°
46°
18
74°
45°
19
73°
46°
20
78°
44°
21
75°
48°
22
75°
50°
23
78°
50°
24
73°
47°
25
69°
46°
26
67°
40°
27
68°
43°
28
58°
34°
29
56°
33°
30
58°
39°
1
57°
35°
2
66°
36°
3
57°
31°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Chico Hot Springs
Chico Hot Springs's September 2026 forecast shows daily high temperatures ranging from 56° to 78°, with overnight lows between 31° and 50°. The average high for September is 69° with an average low of 41°. 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 Chico Hot Springs. See also: October | November | December.