S
M
T
W
T
F
S
26
64°
49°
27
70°
46°
28
76°
44°
29
82°
46°
30
85°
48°
1
88°
51°
2
87°
53°
3
76°
53°
4
63°
54°
5
70°
51°
6
78°
48°
7
88°
54°
8
88°
52°
9
90°
50°
10
93°
55°
11
98°
57°
12
97°
59°
13
84°
53°
14
89°
51°
15
90°
51°
16
82°
53°
17
80°
48°
18
83°
45°
19
88°
49°
20
75°
56°
21
93°
61°
22
93°
63°
23
90°
58°
24
87°
56°
25
84°
58°
26
72°
54°
27
75°
52°
28
68°
56°
29
74°
56°
30
84°
54°
31
90°
56°
1
95°
59°
2
95°
62°
3
95°
64°
4
91°
86°
5
97°
69°
6
90°
60°
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.
