This year's long-range forecast for San Marcos reveals higher temperatures, peaking at 25°, indicative of a warming trend against the historical average.
Select a month and click on a day for more information:
Wednesday
Jan 1
25° / 14°
Thursday
Jan 2
24° / 13°
Friday
Jan 3
23° / 12°
Saturday
Jan 4
19° / 10°
Sunday
Jan 5
17° / 9°
Monday
Jan 6
17° / 10°
Tuesday
Jan 7
17° / 9°
Wednesday
Jan 8
16° / 8°
Thursday
Jan 9
17° / 9°
Friday
Jan 10
16° / 9°
Saturday
Jan 11
18° / 11°
Sunday
Jan 12
20° / 11°
Monday
Jan 13
18° / 11°
Tuesday
Jan 14
18° / 12°
Wednesday
Jan 15
17° / 11°
Thursday
Jan 16
20° / 12°
Friday
Jan 17
16° / 11°
Saturday
Jan 18
18° / 10°
Sunday
Jan 19
17° / 10°
Monday
Jan 20
19° / 11°
Tuesday
Jan 21
17° / 11°
Wednesday
Jan 22
17° / 10°
Thursday
Jan 23
18° / 10°
Friday
Jan 24
18° / 9°
Saturday
Jan 25
18° / 10°
Sunday
Jan 26
21° / 10°
Monday
Jan 27
22° / 11°
Tuesday
Jan 28
19° / 11°
Wednesday
Jan 29
18° / 12°
Thursday
Jan 30
18° / 11°
Friday
Jan 31
18° / 10°
San Marcos 30 days weather forecast
Check out our estimated 30 days weather forecast for San Marcos, this data is based on the average weather in San Marcos in the last few years.
For a more accurate and detailed forecast, check out the 14 day weather for San Marcos next to the desired date.