S
M
T
W
T
F
S
26
71°
51°
27
72°
51°
28
78°
44°
29
82°
53°
30
86°
55°
1
88°
59°
2
90°
56°
3
87°
60°
4
72°
55°
5
73°
53°
6
85°
50°
7
95°
59°
8
99°
65°
9
100°
62°
10
103°
65°
11
104°
69°
12
104°
68°
13
94°
67°
14
94°
63°
15
98°
66°
16
89°
68°
17
87°
63°
18
76°
58°
19
83°
50°
20
88°
57°
21
93°
64°
22
96°
67°
23
96°
66°
24
92°
65°
25
94°
64°
26
81°
59°
27
75°
56°
28
78°
50°
29
79°
54°
30
89°
56°
31
93°
59°
1
98°
65°
2
100°
65°
3
102°
69°
4
104°
69°
5
105°
70°
6
98°
75°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Barstow
Barstow's May 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for May 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 May weather will actually feel in Barstow. See also: June | July | August.
