S
M
T
W
T
F
S
28
84°
52°
29
89°
57°
30
88°
60°
1
90°
59°
2
90°
58°
3
91°
61°
4
95°
64°
5
90°
63°
6
92°
58°
7
91°
59°
8
92°
61°
9
97°
63°
10
93°
67°
11
91°
64°
12
95°
68°
13
100°
66°
14
98°
61°
15
98°
55°
16
90°
52°
17
92°
55°
18
93°
60°
19
93°
59°
20
91°
58°
21
92°
60°
22
97°
61°
23
96°
59°
24
97°
60°
25
98°
59°
26
98°
56°
27
95°
57°
28
92°
60°
29
91°
59°
30
89°
57°
31
90°
57°
1
91°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Upper Lake
Upper Lake's July 2026 forecast shows daily high temperatures ranging from 89° to 98°, with overnight lows between 52° and 61°. The average high for July is 94° with an average low of 58°. 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 Upper Lake. See also: August | September | October.