S
M
T
W
T
F
S
1
38°
22°
2
48°
30°
3
45°
38°
4
50°
39°
5
60°
43°
6
70°
31°
7
53°
30°
8
74°
38°
9
77°
45°
10
61°
35°
11
47°
32°
12
68°
27°
13
56°
33°
14
60°
36°
15
52°
11°
16
25°
8°
17
37°
13°
18
77°
29°
19
79°
41°
20
86°
43°
21
95°
47°
22
75°
33°
23
52°
25°
24
63°
36°
25
82°
50°
26
67°
36°
27
52°
28°
28
62°
29°
29
76°
47°
30
89°
46°
31
74°
45°
1
48°
35°
2
47°
39°
3
41°
37°
4
49°
35°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
March Weather in Waterloo
Waterloo's March 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for March 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 March weather will actually feel in Waterloo. See also: April | May | June.
