S
M
T
W
T
F
S
29
51°
30°
30
41°
32°
31
32°
25°
1
36°
23°
2
30°
26°
3
39°
28°
4
41°
28°
5
40°
23°
6
29°
12°
7
35°
7°
8
N/A
9
38°
27°
10
49°
34°
11
51°
43°
12
59°
35°
13
52°
29°
14
49°
31°
15
53°
35°
16
58°
34°
17
55°
31°
18
53°
36°
19
58°
37°
20
56°
36°
21
57°
32°
22
51°
35°
23
50°
34°
24
49°
35°
25
50°
34°
26
52°
35°
27
59°
39°
28
54°
41°
29
54°
41°
30
55°
38°
1
53°
39°
2
56°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
April Weather in Thief River Falls
Thief River Falls's April 2026 forecast shows daily high temperatures ranging from 38° to 59°, with overnight lows between 27° and 43°. The average high for April is 53° 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 Thief River Falls. See also: May | June | July.
