S
M
T
W
T
F
S
1
19°
2°
2
24°
-3°
3
36°
10°
4
45°
19°
5
42°
25°
6
41°
29°
7
53°
32°
8
47°
36°
9
58°
35°
10
64°
32°
11
43°
32°
12
38°
24°
13
36°
18°
14
34°
19°
15
44°
19°
16
54°
23°
17
24°
12°
18
30°
7°
19
45°
26°
20
38°
26°
21
39°
33°
22
43°
33°
23
36°
24°
24
40°
19°
25
42°
23°
26
47°
28°
27
31°
20°
28
35°
19°
29
47°
30°
30
67°
27°
31
53°
42°
1
42°
32°
2
47°
31°
3
74°
38°
4
50°
35°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
March Weather in Oshawa
Oshawa'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 Oshawa. See also: April | May | June.
