S
M
T
W
T
F
S
29
77°
64°
30
83°
61°
31
85°
61°
1
85°
61°
2
85°
62°
3
87°
69°
4
86°
65°
5
87°
69°
6
83°
64°
7
67°
60°
8
75°
62°
9
78°
62°
10
82°
60°
11
82°
61°
12
83°
58°
13
84°
58°
14
85°
61°
15
83°
59°
16
84°
64°
17
87°
60°
18
89°
64°
19
85°
67°
20
79°
62°
21
83°
55°
22
82°
56°
23
83°
59°
24
85°
65°
25
89°
67°
26
88°
67°
27
84°
66°
28
89°
63°
29
89°
64°
30
89°
69°
1
91°
72°
2
87°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Umatilla
Umatilla's April 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for April is ° with an average low of °. 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 Umatilla. See also: May | June | July.