S
M
T
W
T
F
S
26
60°
49°
27
61°
50°
28
60°
49°
29
61°
49°
30
60°
48°
31
60°
49°
1
61°
51°
2
60°
52°
3
61°
53°
4
60°
52°
5
61°
54°
6
65°
51°
7
66°
52°
8
63°
51°
9
Hist. Avg.
64°
53°
10
Hist. Avg.
64°
53°
11
Hist. Avg.
64°
53°
12
Hist. Avg.
64°
53°
13
Hist. Avg.
64°
53°
14
Hist. Avg.
64°
53°
15
Hist. Avg.
64°
53°
16
Hist. Avg.
64°
53°
17
Hist. Avg.
64°
53°
18
Hist. Avg.
64°
53°
19
Hist. Avg.
64°
53°
20
Hist. Avg.
64°
53°
21
Hist. Avg.
64°
53°
22
Hist. Avg.
64°
53°
23
Hist. Avg.
64°
53°
24
Hist. Avg.
64°
53°
25
Hist. Avg.
64°
53°
26
Hist. Avg.
64°
53°
27
Hist. Avg.
64°
52°
28
Hist. Avg.
64°
52°
29
Hist. Avg.
64°
52°
30
Hist. Avg.
64°
52°
31
Hist. Avg.
64°
52°
1
Hist. Avg.
64°
52°
2
Hist. Avg.
64°
52°
3
Hist. Avg.
64°
52°
4
Hist. Avg.
64°
52°
5
Hist. Avg.
64°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Eureka
Eureka's August 2026 forecast shows daily high temperatures ranging from 60° to 66°, with overnight lows between 48° and 54°. The average high for August is 61° with an average low of 51°. 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 Eureka. See also: September | October | November.
