S
M
T
W
T
F
S
29
68°
28°
30
55°
32°
31
39°
28°
1
32°
27°
2
34°
28°
3
30°
28°
4
37°
25°
5
41°
19°
6
27°
19°
7
46°
21°
8
45°
30°
9
41°
25°
10
57°
25°
11
55°
39°
12
77°
39°
13
55°
37°
14
64°
41°
15
73°
36°
16
75°
36°
17
34°
25°
18
48°
18°
19
48°
21°
20
79°
30°
21
81°
36°
22
91°
48°
23
70°
32°
24
54°
29°
25
50°
30°
26
48°
38°
27
46°
27°
28
53°
30°
29
55°
29°
30
50°
29°
1
53°
31°
2
57°
33°
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 46° to 57°, with overnight lows between 27° and 38°. The average high for April is 52° with an average low of 31°. 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.
