S
M
T
W
T
F
S
30
91°
66°
31
93°
71°
1
94°
71°
2
96°
71°
3
97°
73°
4
97°
73°
5
91°
68°
6
81°
63°
7
84°
60°
8
87°
65°
9
92°
73°
10
82°
68°
11
82°
65°
12
83°
69°
13
90°
67°
14
76°
56°
15
92°
57°
16
93°
73°
17
92°
72°
18
84°
70°
19
89°
69°
20
90°
69°
21
70°
58°
22
65°
58°
23
64°
61°
24
68°
54°
25
73°
47°
26
74°
46°
27
73°
47°
28
75°
47°
29
79°
53°
30
84°
61°
1
90°
68°
2
73°
52°
3
69°
53°
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 69° to 90°, with overnight lows between 52° and 68°. The average high for September is 79° with an average low of 57°. 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.
