The Weather Network
Weather
Maps
News
Video
|
Welcome
Monthly
Forecasts
Current
Hourly
7 Days
14 Days
Monthly
°C
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
San Juan, TX
Content continues below
January
Average Temperature
High
20°
Feels 20
Low
10°
Feels 9
Average Precipitation
5 Days
Rain amount
20.6mm
Snow amount
0.2cm
Content continues below
Daily Historical Averages
January 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
18°
14
25°
15
20°
16
25°
17
24°
18
24°
19
24°
20
20°
21
21°
22
22°
23
28°
24
29°
25
23°
26
5°
27
10°
28
29
30
31
Forecast
Tuesday, January 13, 2026
Day
18°
Feels 18
Wind
9 km/h NW
Gust
13 km/h
Humidity
37%
P.O.P
30%
Night
11°
Feels 11
Wind
6 km/h N
Gust
10 km/h
Humidity
71%
P.O.P
30%
Historical Averages
Jan 13
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.