14 days forecast San Marcos
See the weather for the coming 14 days in San Marcos.
Saturday, May 16 
90%
17° / 30°
4
90%Sun and chance of a shower
Total precipitation 1.5 mm
Precipitation chance 55%
UV index 15
Sunday, May 17 
70%
17° / 29°
4
70%Sun, but also an occasional shower
Total precipitation 8 mm
Precipitation chance 95%
UV index 15
Monday, May 18 70%
16° / 29°
3
70%Sun, but also an occasional shower
Total precipitation 4.1 mm
Precipitation chance 85%
UV index 13
Tuesday, May 19 
55%
16° / 27°
3
55%Heavy showers possible
Total precipitation 17.9 mm
Precipitation chance 100%
UV index 11
Wednesday, May 20 60%
15° / 26°
3
60%Heavy showers possible
Total precipitation 14.4 mm
Precipitation chance 95%
UV index 11
Thursday, May 21 55%
15° / 26°
3
55%Heavy showers possible
Total precipitation 15.2 mm
Precipitation chance 100%
UV index 11
Friday, May 22 55%
15° / 26°
3
55%Sun, but also an occasional shower
Total precipitation 8.6 mm
Precipitation chance 95%
UV index 11
Saturday, May 23 55%
16° / 27°
3
55%Sun, but also an occasional shower
Total precipitation 6.5 mm
Precipitation chance 90%
UV index 9
Sunday, May 24 60%
16° / 27°
3
60%Sun, but also an occasional shower
Total precipitation 5.7 mm
Precipitation chance 90%
UV index 9
Monday, May 25 70%
16° / 27°
3
70%Sun, but also an occasional shower
Total precipitation 7.3 mm
Precipitation chance 90%
UV index 11
Tuesday, May 26 70%
16° / 27°
3
70%Sun, but also an occasional shower
Total precipitation 7.6 mm
Precipitation chance 95%
UV index 10
Wednesday, May 27 70%
16° / 26°
3
70%Sun, but also an occasional shower
Total precipitation 7.8 mm
Precipitation chance 95%
UV index 10
Thursday, May 28 70%
15° / 26°
4
70%Sun, but also an occasional shower
Total precipitation 5 mm
Precipitation chance 90%
UV index 10
Friday, May 29 65%
15° / 26°
4
65%Sun, but also an occasional shower
Total precipitation 7.5 mm
Precipitation chance 95%
UV index 10
Saturday, May 30 65%
15° / 25°
3
65%Sun, but also an occasional shower
Total precipitation 5.8 mm
Precipitation chance 90%
UV index 9