S
M
T
W
T
F
S
28
84°
44°
29
83°
46°
30
88°
47°
1
91°
47°
2
92°
49°
3
95°
51°
4
86°
56°
5
85°
56°
6
86°
56°
7
87°
57°
8
88°
57°
9
87°
56°
10
86°
57°
11
87°
57°
12
87°
56°
13
88°
58°
14
88°
59°
15
84°
58°
16
84°
58°
17
86°
57°
18
88°
59°
19
89°
60°
20
87°
59°
21
86°
58°
22
89°
60°
23
89°
60°
24
88°
59°
25
89°
60°
26
89°
60°
27
88°
59°
28
88°
60°
29
84°
59°
30
80°
57°
31
81°
59°
1
85°
59°
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 80° to 95°, with overnight lows between 44° and 60°. The average high for July is 87° 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.
