S
M
T
W
T
F
S
30
100°
79°
31
100°
77°
1
98°
80°
2
99°
75°
3
90°
74°
4
98°
75°
5
98°
78°
6
98°
75°
7
100°
77°
8
100°
79°
9
99°
78°
10
98°
74°
11
95°
75°
12
100°
77°
13
99°
76°
14
98°
74°
15
97°
74°
16
99°
74°
17
98°
72°
18
91°
69°
19
88°
62°
20
88°
68°
21
89°
67°
22
87°
65°
23
86°
63°
24
89°
68°
25
89°
68°
26
88°
67°
27
88°
68°
28
87°
68°
29
88°
67°
30
87°
67°
1
87°
66°
2
86°
65°
3
87°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Josephine
Josephine's September 2026 forecast shows daily high temperatures ranging from 86° to 100°, with overnight lows between 62° and 77°. The average high for September is 91° with an average low of 69°. 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 Josephine. See also: October | November | December.
