S
M
T
W
T
F
S
28
92°
76°
29
92°
77°
30
92°
76°
1
91°
73°
2
91°
73°
3
90°
73°
4
94°
69°
5
86°
70°
6
88°
70°
7
87°
69°
8
91°
73°
9
90°
72°
10
88°
69°
11
91°
68°
12
94°
69°
13
95°
70°
14
97°
71°
15
89°
68°
16
83°
66°
17
93°
72°
18
95°
73°
19
96°
74°
20
96°
73°
21
95°
73°
22
96°
72°
23
97°
74°
24
97°
74°
25
96°
73°
26
97°
74°
27
97°
74°
28
96°
73°
29
96°
71°
30
95°
72°
31
94°
71°
1
92°
70°
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 83° to 97°, with overnight lows between 66° and 74°. The average high for July is 93° with an average low of 71°. 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.
