S
M
T
W
T
F
S
31
76°
33°
1
82°
35°
2
85°
40°
3
90°
44°
4
89°
44°
5
92°
50°
6
85°
45°
7
77°
43°
8
79°
46°
9
68°
38°
10
65°
36°
11
70°
34°
12
71°
37°
13
81°
46°
14
83°
45°
15
87°
46°
16
86°
46°
17
87°
47°
18
90°
54°
19
82°
55°
20
84°
51°
21
83°
52°
22
82°
52°
23
80°
51°
24
78°
51°
25
79°
52°
26
80°
52°
27
78°
53°
28
84°
54°
29
85°
54°
30
84°
55°
1
85°
54°
2
86°
55°
3
77°
54°
4
83°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Eureka
Eureka's June 2026 forecast shows daily high temperatures ranging from 65° to 92°, with overnight lows between 34° and 55°. The average high for June is 81° with an average low of 49°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Eureka. See also: July | August | September.
