S
M
T
W
T
F
S
30
83°
55°
31
82°
50°
1
76°
50°
2
75°
51°
3
75°
50°
4
76°
50°
5
74°
49°
6
74°
49°
7
75°
50°
8
76°
52°
9
74°
53°
10
72°
49°
11
73°
50°
12
76°
49°
13
74°
52°
14
76°
53°
15
71°
48°
16
71°
48°
17
69°
47°
18
71°
50°
19
75°
52°
20
Hist. Avg.
72°
45°
21
Hist. Avg.
71°
45°
22
Hist. Avg.
71°
45°
23
Hist. Avg.
71°
44°
24
Hist. Avg.
70°
44°
25
Hist. Avg.
70°
43°
26
Hist. Avg.
69°
43°
27
Hist. Avg.
69°
42°
28
Hist. Avg.
69°
42°
29
Hist. Avg.
68°
41°
30
Hist. Avg.
68°
41°
1
Hist. Avg.
67°
41°
2
Hist. Avg.
67°
40°
3
Hist. Avg.
66°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Deerfield
Deerfield's September 2026 forecast shows daily high temperatures ranging from 69° to 83°, with overnight lows between 47° and 55°. The average high for September is 75° with an average low of 50°. 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 Deerfield. See also: October | November | December.
