S
M
T
W
T
F
S
28
72°
49°
29
73°
51°
30
80°
55°
1
83°
54°
2
84°
55°
3
84°
56°
4
87°
57°
5
87°
57°
6
86°
56°
7
87°
57°
8
88°
58°
9
89°
58°
10
89°
57°
11
90°
59°
12
89°
57°
13
91°
54°
14
91°
51°
15
92°
50°
16
85°
46°
17
82°
49°
18
89°
50°
19
93°
53°
20
93°
53°
21
92°
56°
22
94°
58°
23
95°
58°
24
94°
48°
25
88°
47°
26
87°
53°
27
90°
53°
28
91°
47°
29
86°
51°
30
92°
55°
31
94°
57°
1
94°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Eureka
Eureka's July 2026 forecast shows daily high temperatures ranging from 72° to 95°, with overnight lows between 46° and 59°. The average high for July is 88° with an average low of 54°. 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 Eureka. See also: August | September | October.
