S
M
T
W
T
F
S
1
33°
-5°
2
29°
8°
3
31°
6°
4
14°
5°
5
31°
8°
6
44°
15°
7
56°
30°
8
41°
17°
9
34°
12°
10
35°
3°
11
41°
15°
12
28°
14°
13
20°
6°
14
13°
-6°
15
29°
-6°
16
33°
8°
17
63°
23°
18
60°
32°
19
59°
34°
20
54°
29°
21
35°
19°
22
44°
19°
23
44°
22°
24
32°
17°
25
17°
1°
26
17°
-2°
27
38°
-2°
28
41°
15°
29
28°
17°
30
25°
7°
31
30°
-3°
1
38°
16°
2
32°
28°
3
42°
28°
4
54°
28°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
March Weather in Marengo
Marengo'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 Marengo. See also: April | May | June.