S
M
T
W
T
F
S
29
59°
33°
30
74°
31°
31
76°
41°
1
42°
28°
2
61°
28°
3
61°
39°
4
54°
36°
5
42°
32°
6
47°
23°
7
39°
25°
8
56°
47°
9
63°
41°
10
55°
30°
11
56°
41°
12
71°
58°
13
70°
48°
14
53°
38°
15
48°
34°
16
53°
42°
17
61°
42°
18
60°
40°
19
58°
44°
20
61°
37°
21
62°
45°
22
62°
45°
23
66°
44°
24
62°
39°
25
56°
37°
26
55°
40°
27
55°
37°
28
63°
41°
29
56°
37°
30
57°
43°
1
62°
42°
2
58°
38°
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 39° to 71°, with overnight lows between 25° and 58°. The average high for April is 58° with an average low of 41°. 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.
