S
M
T
W
T
F
S
28
66°
48°
29
74°
46°
30
76°
44°
1
73°
48°
2
74°
54°
3
77°
55°
4
78°
58°
5
80°
59°
6
80°
59°
7
81°
63°
8
82°
67°
9
85°
67°
10
81°
67°
11
81°
63°
12
77°
62°
13
73°
56°
14
78°
52°
15
85°
61°
16
82°
64°
17
77°
67°
18
80°
66°
19
79°
66°
20
75°
64°
21
76°
64°
22
83°
65°
23
87°
62°
24
86°
72°
25
85°
69°
26
84°
68°
27
85°
64°
28
84°
63°
29
84°
64°
30
87°
63°
31
90°
64°
1
91°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Lake Arrowhead
Lake Arrowhead's July 2026 forecast shows daily high temperatures ranging from 84° to 91°, with overnight lows between 63° and 69°. The average high for July is 86° with an average low of 65°. 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 Arrowhead. See also: August | September | October.