S
M
T
W
T
F
S
29
54°
45°
30
52°
33°
31
49°
34°
1
59°
40°
2
53°
40°
3
61°
40°
4
70°
38°
5
73°
44°
6
74°
45°
7
71°
36°
8
68°
35°
9
72°
39°
10
73°
48°
11
66°
46°
12
61°
43°
13
64°
39°
14
63°
40°
15
61°
39°
16
64°
40°
17
65°
44°
18
68°
43°
19
66°
41°
20
65°
39°
21
60°
37°
22
60°
36°
23
59°
35°
24
63°
45°
25
64°
39°
26
67°
39°
27
70°
44°
28
71°
46°
29
72°
47°
30
72°
46°
1
74°
48°
2
72°
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 59° to 74°, with overnight lows between 35° and 48°. The average high for April is 67° with an average low of 42°. 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.
