S
M
T
W
T
F
S
28
82°
68°
29
86°
71°
30
92°
67°
1
101°
70°
2
102°
73°
3
103°
72°
4
101°
70°
5
95°
69°
6
92°
70°
7
82°
71°
8
85°
72°
9
93°
73°
10
87°
71°
11
87°
70°
12
83°
69°
13
86°
63°
14
91°
67°
15
98°
72°
16
101°
75°
17
95°
73°
18
94°
72°
19
89°
71°
20
91°
70°
21
83°
66°
22
84°
65°
23
81°
65°
24
83°
66°
25
85°
67°
26
84°
65°
27
83°
67°
28
85°
68°
29
88°
64°
30
82°
66°
31
82°
68°
1
83°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Lake Monticello
Lake Monticello's July 2026 forecast shows daily high temperatures ranging from 81° to 101°, with overnight lows between 63° and 75°. The average high for July is 87° with an average low of 68°. 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 Lake Monticello. See also: August | September | October.
