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San Marcos, CA
7-Day Forecast
Updated 10/3/2026, 3:40 PM PDT
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Sat • Oct 3
Clear
• Wind E 18 mph
• Rain – 0% Chance
Low
76°
High
103°
Sun • Oct 4
Clear
• Wind S 11 mph
• Rain – 1% Chance
Low
75°
High
100°
Mon • Oct 5
Overcast
• Wind WSW 13 mph
• Rain – 1% Chance
Low
73°
High
101°
Tue • Oct 6
Clear
• Wind WNW 12 mph
• Rain – 0% Chance
Low
73°
High
95°
Wed • Oct 7
Clear
• Wind W 10 mph
• Rain – 0% Chance
Low
71°
High
92°
Thu • Oct 8
Clear
• Wind WNW 9 mph
• Rain – 0% Chance
Low
69°
High
91°
Fri • Oct 9
Overcast
• Wind WSW 9 mph
• Rain – 1% Chance
Low
66°
High
90°
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