S
M
T
W
T
F
S
26
76°
60°
27
77°
59°
28
80°
60°
29
83°
57°
30
84°
62°
31
86°
63°
1
86°
63°
2
85°
62°
3
83°
58°
4
79°
59°
5
76°
61°
6
77°
59°
7
78°
57°
8
77°
58°
9
Hist. Avg.
80°
57°
10
Hist. Avg.
80°
57°
11
Hist. Avg.
80°
57°
12
Hist. Avg.
80°
57°
13
Hist. Avg.
80°
57°
14
Hist. Avg.
80°
56°
15
Hist. Avg.
80°
56°
16
Hist. Avg.
80°
56°
17
Hist. Avg.
80°
56°
18
Hist. Avg.
80°
56°
19
Hist. Avg.
79°
56°
20
Hist. Avg.
79°
56°
21
Hist. Avg.
79°
56°
22
Hist. Avg.
79°
56°
23
Hist. Avg.
79°
56°
24
Hist. Avg.
79°
55°
25
Hist. Avg.
79°
55°
26
Hist. Avg.
79°
55°
27
Hist. Avg.
78°
55°
28
Hist. Avg.
78°
55°
29
Hist. Avg.
78°
54°
30
Hist. Avg.
78°
54°
31
Hist. Avg.
78°
54°
1
Hist. Avg.
78°
54°
2
Hist. Avg.
77°
54°
3
Hist. Avg.
77°
53°
4
Hist. Avg.
77°
53°
5
Hist. Avg.
77°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Irvine
Irvine's August 2026 forecast shows daily high temperatures ranging from 76° to 86°, with overnight lows between 57° and 63°. The average high for August is 81° with an average low of 60°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Irvine. See also: September | October | November.
