S
M
T
W
T
F
S
28
84°
48°
29
93°
48°
30
92°
47°
1
89°
49°
2
95°
53°
3
86°
55°
4
86°
56°
5
85°
56°
6
84°
55°
7
79°
56°
8
79°
56°
9
78°
53°
10
80°
56°
11
87°
57°
12
88°
58°
13
88°
59°
14
85°
58°
15
88°
58°
16
88°
59°
17
87°
58°
18
87°
59°
19
86°
59°
20
81°
58°
21
82°
59°
22
81°
58°
23
84°
60°
24
88°
60°
25
89°
59°
26
90°
59°
27
90°
57°
28
89°
58°
29
90°
57°
30
87°
56°
31
81°
57°
1
82°
57°
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 78° to 95°, with overnight lows between 47° and 60°. The average high for July is 86° with an average low of 56°. 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.
