S
M
T
W
T
F
S
30
82°
60°
31
83°
60°
1
86°
59°
2
82°
60°
3
81°
64°
4
86°
63°
5
86°
65°
6
85°
64°
7
83°
58°
8
79°
58°
9
82°
63°
10
81°
63°
11
83°
62°
12
84°
63°
13
84°
57°
14
77°
55°
15
77°
54°
16
78°
54°
17
77°
57°
18
81°
60°
19
81°
60°
20
82°
61°
21
75°
59°
22
80°
58°
23
79°
59°
24
81°
52°
25
74°
51°
26
74°
56°
27
80°
57°
28
78°
57°
29
79°
57°
30
Hist. Avg.
75°
53°
1
Hist. Avg.
75°
53°
2
Hist. Avg.
74°
52°
3
Hist. Avg.
74°
52°
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 74° to 86°, with overnight lows between 51° and 65°. The average high for September is 81° with an average low of 59°. 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.
