S
M
T
W
T
F
S
1
18°
4°
2
31°
9°
3
37°
21°
4
45°
25°
5
32°
29°
6
34°
31°
7
44°
30°
8
46°
30°
9
51°
33°
10
37°
28°
11
29°
23°
12
30°
19°
13
30°
21°
14
26°
15°
15
28°
23°
16
24°
7°
17
19°
6°
18
28°
12°
19
35°
28°
20
37°
28°
21
35°
30°
22
37°
27°
23
34°
20°
24
36°
22°
25
39°
28°
26
36°
21°
27
27°
13°
28
29°
19°
29
44°
21°
30
52°
35°
31
38°
30°
1
31°
21°
2
33°
28°
3
38°
32°
4
33°
31°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
March Weather in Mackinac Island
Mackinac Island'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 Mackinac Island. See also: April | May | June.
