S
M
T
W
T
F
S
30
77°
50°
31
75°
49°
1
71°
49°
2
71°
50°
3
72°
52°
4
75°
51°
5
73°
49°
6
74°
49°
7
75°
50°
8
76°
50°
9
75°
49°
10
74°
48°
11
69°
49°
12
71°
47°
13
72°
48°
14
74°
48°
15
71°
46°
16
69°
47°
17
68°
46°
18
68°
47°
19
73°
40°
20
Hist. Avg.
73°
41°
21
Hist. Avg.
73°
41°
22
Hist. Avg.
72°
40°
23
Hist. Avg.
72°
40°
24
Hist. Avg.
72°
39°
25
Hist. Avg.
71°
39°
26
Hist. Avg.
71°
39°
27
Hist. Avg.
71°
38°
28
Hist. Avg.
70°
38°
29
Hist. Avg.
70°
37°
30
Hist. Avg.
70°
37°
1
Hist. Avg.
69°
37°
2
Hist. Avg.
69°
36°
3
Hist. Avg.
68°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Happy Jack
Happy Jack's September 2026 forecast shows daily high temperatures ranging from 68° to 77°, with overnight lows between 40° and 52°. The average high for September is 73° with an average low of 48°. 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 Happy Jack. See also: October | November | December.
