S
M
T
W
T
F
S
31
77°
40°
1
78°
46°
2
79°
41°
3
82°
53°
4
86°
65°
5
84°
66°
6
80°
57°
7
82°
57°
8
86°
61°
9
89°
63°
10
86°
66°
11
85°
63°
12
87°
65°
13
83°
62°
14
82°
62°
15
81°
60°
16
80°
57°
17
76°
61°
18
80°
60°
19
80°
60°
20
79°
61°
21
82°
54°
22
73°
54°
23
75°
62°
24
82°
64°
25
83°
62°
26
83°
57°
27
75°
55°
28
76°
62°
29
77°
62°
30
78°
60°
1
78°
61°
2
80°
62°
3
83°
63°
4
84°
64°
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 73° to 89°, with overnight lows between 53° and 66°. The average high for June is 81° with an average low of 61°. 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.
