S
M
T
W
T
F
S
28
87°
74°
29
88°
72°
30
88°
74°
1
88°
71°
2
85°
70°
3
86°
72°
4
87°
67°
5
83°
70°
6
81°
64°
7
81°
65°
8
82°
65°
9
80°
66°
10
82°
69°
11
84°
71°
12
84°
71°
13
83°
70°
14
84°
71°
15
82°
70°
16
82°
68°
17
83°
67°
18
82°
67°
19
83°
70°
20
87°
70°
21
82°
67°
22
82°
66°
23
83°
67°
24
82°
69°
25
84°
71°
26
85°
70°
27
83°
70°
28
82°
69°
29
82°
70°
30
83°
71°
31
86°
71°
1
84°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Evanston
Evanston's July 2026 forecast shows daily high temperatures ranging from 80° to 88°, with overnight lows between 64° and 74°. The average high for July is 84° with an average low of 69°. 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 Evanston. See also: August | September | October.