S
M
T
W
T
F
S
30
89°
55°
31
89°
59°
1
92°
60°
2
95°
60°
3
95°
57°
4
88°
59°
5
89°
56°
6
91°
52°
7
88°
53°
8
87°
55°
9
91°
56°
10
93°
58°
11
94°
58°
12
94°
59°
13
95°
58°
14
95°
55°
15
89°
55°
16
90°
58°
17
93°
58°
18
93°
57°
19
94°
56°
20
94°
57°
21
92°
58°
22
89°
54°
23
85°
51°
24
84°
50°
25
83°
49°
26
82°
51°
27
83°
54°
28
86°
52°
29
90°
48°
30
83°
50°
1
Hist. Avg.
84°
53°
2
Hist. Avg.
83°
53°
3
Hist. Avg.
83°
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 82° to 95°, with overnight lows between 48° and 60°. The average high for September is 90° 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.
