S
M
T
W
T
F
S
26
83°
64°
27
85°
65°
28
85°
65°
29
84°
64°
30
84°
65°
1
83°
65°
2
80°
63°
3
79°
64°
4
79°
65°
5
80°
64°
6
79°
66°
7
81°
66°
8
79°
65°
9
79°
66°
10
80°
66°
11
82°
65°
12
85°
67°
13
84°
67°
14
84°
66°
15
85°
67°
16
83°
65°
17
82°
66°
18
88°
64°
19
89°
68°
20
90°
66°
21
88°
65°
22
89°
66°
23
88°
65°
24
88°
68°
25
87°
67°
26
89°
68°
27
90°
66°
28
90°
68°
29
89°
67°
30
91°
65°
31
91°
66°
1
92°
68°
2
91°
66°
3
92°
68°
4
92°
68°
5
91°
69°
6
92°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Flatonia
Flatonia's May 2026 forecast shows daily high temperatures ranging from 79° to 92°, with overnight lows between 63° and 69°. The average high for May is 86° with an average low of 66°. 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 Flatonia. See also: June | July | August.