S
M
T
W
T
F
S
30
83°
56°
31
80°
53°
1
77°
52°
2
76°
54°
3
76°
54°
4
77°
55°
5
77°
56°
6
75°
60°
7
81°
59°
8
80°
53°
9
75°
52°
10
75°
52°
11
74°
51°
12
74°
52°
13
73°
53°
14
72°
51°
15
74°
56°
16
75°
53°
17
74°
50°
18
75°
51°
19
75°
57°
20
76°
52°
21
71°
48°
22
71°
46°
23
Hist. Avg.
76°
50°
24
Hist. Avg.
75°
50°
25
Hist. Avg.
75°
50°
26
Hist. Avg.
74°
49°
27
Hist. Avg.
74°
49°
28
Hist. Avg.
74°
49°
29
Hist. Avg.
73°
48°
30
Hist. Avg.
73°
48°
1
Hist. Avg.
72°
48°
2
Hist. Avg.
72°
47°
3
Hist. Avg.
72°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Bloomington
Bloomington's September 2026 forecast shows daily high temperatures ranging from 71° to 83°, with overnight lows between 46° and 60°. The average high for September is 76° with an average low of 53°. 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 Bloomington. See also: October | November | December.
