S
M
T
W
T
F
S
31
52°
44°
1
48°
43°
2
62°
47°
3
77°
51°
4
69°
43°
5
77°
48°
6
63°
41°
7
67°
42°
8
75°
49°
9
74°
51°
10
71°
50°
11
74°
49°
12
78°
50°
13
80°
53°
14
83°
52°
15
75°
48°
16
73°
52°
17
77°
53°
18
80°
54°
19
75°
52°
20
78°
52°
21
80°
53°
22
81°
54°
23
82°
55°
24
82°
54°
25
75°
52°
26
82°
54°
27
82°
51°
28
72°
49°
29
73°
51°
30
80°
55°
1
83°
54°
2
84°
55°
3
84°
56°
4
87°
57°
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 62° to 87°, with overnight lows between 41° and 57°. The average high for June is 77° with an average low of 51°. 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.
