S
M
T
W
T
F
S
1
62°
51°
2
63°
46°
3
67°
44°
4
56°
45°
5
61°
41°
6
68°
41°
7
74°
54°
8
75°
47°
9
68°
48°
10
66°
46°
11
69°
44°
12
74°
47°
13
70°
47°
14
69°
51°
15
75°
47°
16
85°
50°
17
90°
52°
18
83°
51°
19
84°
51°
20
88°
53°
21
77°
60°
22
77°
50°
23
74°
54°
24
75°
49°
25
71°
51°
26
73°
45°
27
78°
47°
28
82°
49°
29
78°
51°
30
71°
53°
31
60°
53°
1
54°
48°
2
59°
41°
3
72°
41°
4
76°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
March Weather in Upper Lake
Upper Lake'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 Upper Lake. See also: April | May | June.