S
M
T
W
T
F
S
29
51°
40°
30
47°
27°
31
47°
22°
1
56°
36°
2
41°
37°
3
52°
33°
4
62°
27°
5
66°
29°
6
70°
34°
7
62°
28°
8
62°
34°
9
63°
32°
10
66°
40°
11
66°
43°
12
59°
38°
13
56°
37°
14
60°
38°
15
59°
37°
16
55°
36°
17
64°
38°
18
64°
38°
19
61°
36°
20
60°
35°
21
53°
30°
22
53°
31°
23
54°
30°
24
54°
32°
25
55°
31°
26
56°
31°
27
61°
32°
28
65°
32°
29
66°
36°
30
66°
34°
1
67°
38°
2
67°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Flathead Reservation
Flathead Reservation's April 2026 forecast shows daily high temperatures ranging from 53° to 67°, with overnight lows between 28° and 43°. The average high for April is 61° with an average low of 35°. 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 Flathead Reservation. See also: May | June | July.
