S
M
T
W
T
F
S
30
88°
67°
31
91°
64°
1
92°
66°
2
95°
66°
3
95°
66°
4
95°
68°
5
90°
66°
6
88°
68°
7
84°
66°
8
84°
61°
9
88°
63°
10
86°
64°
11
90°
68°
12
75°
66°
13
88°
66°
14
86°
64°
15
91°
59°
16
89°
65°
17
90°
65°
18
90°
65°
19
81°
65°
20
86°
64°
21
86°
67°
22
78°
63°
23
77°
63°
24
75°
59°
25
74°
44°
26
75°
43°
27
72°
46°
28
74°
46°
29
77°
50°
30
80°
57°
1
79°
59°
2
80°
58°
3
75°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Jonesville
Jonesville's September 2026 forecast shows daily high temperatures ranging from 72° to 80°, with overnight lows between 43° and 59°. The average high for September is 76° with an average low of 51°. 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 Jonesville. See also: October | November | December.
