S
M
T
W
T
F
S
29
81°
45°
30
88°
59°
31
82°
59°
1
68°
48°
2
70°
52°
3
76°
43°
4
57°
38°
5
65°
36°
6
72°
42°
7
70°
41°
8
77°
46°
9
81°
49°
10
67°
50°
11
79°
54°
12
78°
63°
13
85°
67°
14
85°
69°
15
82°
56°
16
80°
53°
17
80°
50°
18
61°
37°
19
74°
41°
20
76°
45°
21
79°
54°
22
71°
59°
23
79°
52°
24
72°
51°
25
75°
53°
26
70°
59°
27
75°
43°
28
63°
42°
29
66°
47°
30
64°
47°
1
66°
41°
2
71°
46°
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 63° to 75°, with overnight lows between 41° and 47°. The average high for April is 68° with an average low of 44°. 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.
