S
M
T
W
T
F
S
28
56°
49°
29
64°
49°
30
63°
53°
1
69°
51°
2
70°
42°
3
70°
51°
4
76°
49°
5
76°
43°
6
78°
42°
7
82°
46°
8
81°
45°
9
80°
48°
10
82°
53°
11
82°
47°
12
72°
49°
13
82°
39°
14
72°
43°
15
83°
46°
16
88°
48°
17
85°
54°
18
85°
56°
19
80°
52°
20
82°
51°
21
85°
57°
22
87°
51°
23
96°
60°
24
98°
59°
25
99°
56°
26
88°
53°
27
88°
54°
28
90°
57°
29
92°
55°
30
96°
60°
31
97°
59°
1
95°
55°
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 88° to 99°, with overnight lows between 53° and 60°. The average high for July is 94° with an average low of 57°. 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.
