S
M
T
W
T
F
S
29
71°
40°
30
78°
58°
31
82°
62°
1
81°
62°
2
79°
66°
3
81°
64°
4
73°
45°
5
61°
38°
6
69°
36°
7
63°
44°
8
74°
47°
9
77°
52°
10
78°
54°
11
74°
54°
12
79°
60°
13
79°
68°
14
82°
64°
15
82°
65°
16
78°
58°
17
82°
57°
18
71°
41°
19
68°
36°
20
69°
43°
21
80°
52°
22
79°
54°
23
81°
63°
24
74°
51°
25
76°
54°
26
74°
59°
27
74°
51°
28
69°
50°
29
70°
47°
30
66°
47°
1
67°
46°
2
69°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Eureka
Eureka's April 2026 forecast shows daily high temperatures ranging from 66° to 81°, with overnight lows between 46° and 63°. The average high for April is 73° with an average low of 52°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how April weather will actually feel in Eureka. See also: May | June | July.
