S
M
T
W
T
F
S
28
84°
68°
29
91°
71°
30
86°
70°
1
85°
67°
2
85°
66°
3
85°
65°
4
83°
63°
5
82°
62°
6
83°
61°
7
78°
60°
8
78°
61°
9
79°
63°
10
79°
65°
11
82°
66°
12
82°
65°
13
80°
64°
14
81°
65°
15
79°
64°
16
79°
62°
17
80°
63°
18
82°
64°
19
81°
65°
20
80°
60°
21
77°
58°
22
78°
60°
23
80°
64°
24
83°
65°
25
84°
66°
26
82°
66°
27
78°
63°
28
78°
61°
29
79°
65°
30
83°
67°
31
85°
65°
1
79°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Deerfield
Deerfield's July 2026 forecast shows daily high temperatures ranging from 77° to 91°, with overnight lows between 58° and 71°. The average high for July is 81° with an average low of 64°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Deerfield. See also: August | September | October.