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7 Days
14 Days
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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Rio Grande City, TX
Content continues below
May
Average Temperature
High
34°
Feels 37
Low
22°
Feels 23
Average Precipitation
10 Days
Rain amount
92.7mm
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
38°
18
38°
19
37°
20
37°
21
36°
22
35°
23
33°
24
32°
25
32°
26
34°
27
35°
28
31°
29
32°
30
32°
31
32°
Forecast
Sunday, May 17, 2026
Day
38°
Feels 42
Wind
31 km/h SE
Gust
47 km/h
Humidity
37%
P.O.P
40%
Rain
<1 mm
Night
26°
Feels 26
Wind
29 km/h SE
Gust
43 km/h
Humidity
88%
P.O.P
100%
Rain
5-10 mm
Historical Averages
May 17
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.