S
M
T
W
T
F
S
30
81°
63°
31
82°
63°
1
81°
62°
2
78°
62°
3
80°
61°
4
79°
62°
5
81°
62°
6
82°
61°
7
83°
62°
8
83°
62°
9
80°
61°
10
76°
59°
11
80°
61°
12
82°
61°
13
82°
59°
14
71°
49°
15
70°
52°
16
71°
55°
17
72°
52°
18
69°
50°
19
72°
51°
20
77°
54°
21
77°
55°
22
76°
54°
23
76°
45°
24
69°
45°
25
70°
53°
26
73°
54°
27
74°
44°
28
74°
43°
29
65°
46°
30
68°
49°
1
67°
49°
2
70°
52°
3
74°
51°
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 65° to 83°, with overnight lows between 43° and 63°. The average high for September is 76° 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.
