S
M
T
W
T
F
S
31
76°
33°
1
82°
35°
2
85°
40°
3
90°
44°
4
89°
44°
5
94°
44°
6
87°
48°
7
77°
41°
8
83°
35°
9
79°
45°
10
81°
35°
11
83°
37°
12
90°
40°
13
89°
43°
14
89°
47°
15
91°
48°
16
93°
51°
17
94°
50°
18
92°
56°
19
92°
47°
20
82°
47°
21
84°
48°
22
86°
48°
23
90°
49°
24
94°
48°
25
92°
47°
26
89°
48°
27
89°
47°
28
94°
51°
29
85°
54°
30
85°
55°
1
86°
55°
2
85°
54°
3
86°
55°
4
86°
56°
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 82° to 94°, with overnight lows between 47° and 56°. The average high for June is 89° 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.
