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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Sunnyvale, TX
Content continues below
May
Average Temperature
High
28°
Feels 29
Low
18°
Feels 18
Average Precipitation
10 Days
Rain amount
98.6mm
Snow amount
0cm
Content continues below
Daily Historical Averages
May 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
29°
23
29°
24
28°
25
29°
26
30°
27
26°
28
30°
29
32°
30
32°
31
32°
Forecast
Friday, May 22, 2026
Day
29°
Feels 31
Wind
9 km/h SW
Gust
14 km/h
Humidity
56%
P.O.P
40%
Rain
<1 mm
Night
18°
Feels 19
Wind
16 km/h SE
Gust
25 km/h
Humidity
94%
P.O.P
60%
Rain
1-3 mm
Historical Averages
May 22
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.