S
M
T
W
T
F
S
30
81°
68°
31
87°
70°
1
93°
73°
2
94°
73°
3
91°
74°
4
91°
75°
5
82°
71°
6
80°
62°
7
81°
58°
8
85°
62°
9
80°
67°
10
77°
57°
11
81°
53°
12
86°
61°
13
73°
51°
14
70°
46°
15
83°
63°
16
75°
63°
17
78°
63°
18
76°
63°
19
80°
65°
20
70°
58°
21
65°
57°
22
65°
53°
23
71°
54°
24
70°
56°
25
69°
54°
26
71°
54°
27
72°
55°
28
73°
54°
29
71°
53°
30
70°
47°
1
74°
53°
2
66°
52°
3
63°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Batavia
Batavia's September 2026 forecast shows daily high temperatures ranging from 63° to 80°, with overnight lows between 47° and 65°. The average high for September is 71° with an average low of 55°. 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 Batavia. See also: October | November | December.
