San Marcos, CA Hourly Weather Forecast
Next 48 Hours
Wed, Oct 21st 2026
Scattered showers giving way to light rain shower by evening. Temps range from 65° to 73°. Breezy wind from the SSW at 11 mph, with humidity ranging 62% to 93%, and an avg barometric pressure of 29.85 inHg.
| Wed, Oct 21st | Temp | Humidity | Wind (mph) | Pressure (inHg) | Dew Point | Precip. |
|---|---|---|---|---|---|---|
5 PM Scattered Showers UV: 0.6 |
73°F Feels 71°F |
62% | 9.2 SSW | 29.82 | 59.2°F | 10% |
6 PM Light Rain Shower UV: 0 |
70°F Feels 66°F |
70% | 13 SSW | 29.83 | 60°F | 32% Rain est. 0.01in |
7 PM Light Rain Shower UV: 0 |
69°F Feels 67°F |
74% | 11.2 SSW | 29.84 | 60.7°F | 61% Rain est. 0.05in |
8 PM Light Rain ShowerUV: 0 |
68°F Feels 66°F |
79% | 10.1 SSW | 29.86 | 61.2°F | 57% Rain est. 0.04in |
9 PM Light Rain ShowerUV: 0 |
68°F Feels 64°F |
79% | 14.1 SSW | 29.86 | 60.9°F | 64% Rain est. 0.09in |
10 PM Moderate Or Heavy Rain Shower UV: 0 |
66°F Feels 64°F |
86% | 11.2 SSW | 29.86 | 61.7°F | 79% Rain est. 0.11in |
11 PM Light Rain ShowerUV: 0 |
65°F Feels 64°F |
93% | 8.1 S | 29.88 | 62.4°F | 82% Rain est. 0.09in |
Thu, Oct 22nd 2026
Expect consistent Scattered showers skies throughout the day. Temps range from 60° to 69°. Light winds, shifting from SSW to SE at 6 mph, as humidity ranges 58% to 92%, and an avg barometric pressure of 29.93 inHg.
| Thu, Oct 22nd | Temp | Humidity | Wind (mph) | Pressure (inHg) | Dew Point | Precip. |
|---|---|---|---|---|---|---|
12 AM Moderate Rain UV: 0 |
64°F Feels 62°F |
92% | 10.7 SSW | 29.86 | 62.1°F | 90% Rain est. 0.2in |
1 AM Patchy Light Rain UV: 0 |
64°F Feels 61°F |
88% | 11.6 WSW | 29.87 | 60.7°F | 76% Rain est. 0.09in |
2 AM Light Rain ShowerUV: 0 |
64°F Feels 66°F |
91% | 4.3 SW | 29.89 | 61.3°F | 63% Rain est. 0.03in |
3 AM Scattered Showers UV: 0 |
63°F Feels 64°F |
85% | 3.1 SW | 29.88 | 58.8°F | 62% Rain est. 0.03in |
4 AM Scattered ShowersUV: 0 |
63°F Feels 64°F |
85% | 2.5 SSW | 29.88 | 58.2°F | 64% Rain est. 0.04in |
5 AM Light Rain ShowerUV: 0 |
61°F Feels 63°F |
91% | 2.5 WSW | 29.89 | 58.6°F | 60% Rain est. 0.03in |
6 AM Scattered ShowersUV: 0 |
62°F Feels 62°F |
85% | 4.3 SSW | 29.89 | 57.1°F | 40% Rain est. 0.01in |
7 AM Scattered ShowersUV: 0 |
61°F Feels 61°F |
85% | 4 WSW | 29.91 | 56.7°F | 54% Rain est. 0.02in |
8 AM Light Rain ShowerUV: 0.2 |
61°F Feels 62°F |
90% | 1.6 S | 29.93 | 57.5°F | 60% Rain est. 0.03in |
9 AM Scattered ShowersUV: 0.8 |
64°F Feels 63°F |
72% | 4.7 WSW | 29.95 | 54.9°F | 49% Rain est. 0.03in |
10 AM Scattered ShowersUV: 2 |
66°F Feels 64°F |
66% | 4.9 WSW | 29.96 | 54°F | 36% Rain est. 0.01in |
11 AM Scattered ShowersUV: 3.6 |
66°F Feels 66°F |
68% | 3.6 WSW | 29.97 | 55.4°F | 24% Rain est. 0.01in |
12 PM Scattered ShowersUV: 4.8 |
68°F Feels 63°F |
58% | 8.7 WSW | 29.97 | 52.4°F | 25% Rain est. 0.01in |
1 PM Scattered ShowersUV: 4.9 |
68°F Feels 63°F |
58% | 10.1 WSW | 29.96 | 52.6°F | 17% |
2 PM Scattered ShowersUV: 4.2 |
69°F Feels 64°F |
58% | 9.2 WSW | 29.94 | 53.3°F | 13% |
3 PM Scattered ShowersUV: 3 |
68°F Feels 61°F |
58% | 13.2 WSW | 29.93 | 52.4°F | 17% |
4 PM Scattered ShowersUV: 1.5 |
67°F Feels 61°F |
59% | 11.2 WSW | 29.94 | 52.1°F | 11% |
5 PM Scattered ShowersUV: 0.5 |
66°F Feels 62°F |
64% | 8.7 W | 29.94 | 53.1°F | 12% |
6 PM Scattered ShowersUV: 0 |
64°F Feels 60°F |
64% | 8.7 W | 29.95 | 51.9°F | 12% |
7 PM Clear UV: 0 |
63°F Feels 60°F |
66% | 6.5 W | 29.96 | 51.4°F | 5% |
8 PM Scattered ShowersUV: 0 |
62°F Feels 61°F |
77% | 3.4 W | 29.97 | 54.4°F | 25% |
9 PM ClearUV: 0 |
62°F Feels 60°F |
68% | 3.8 WSW | 29.98 | 51.2°F | 5% |
10 PM Scattered ShowersUV: 0 |
62°F Feels 61°F |
70% | 2.5 WSW | 29.98 | 51.5°F | 15% |
11 PM Scattered ShowersUV: 0 |
60°F Feels 61°F |
82% | 0.9 SE | 29.99 | 54.4°F | 23% |
Fri, Oct 23rd 2026
Expect consistent Scattered showers skies throughout the day. Temps range from 58° to 70°. Light winds, shifting from SSE to WSW at 5.3 mph, as humidity fluctuates between 56% to 85%, and an avg barometric pressure of 29.96 inHg.
| Fri, Oct 23rd | Temp | Humidity | Wind (mph) | Pressure (inHg) | Dew Point | Precip. |
|---|---|---|---|---|---|---|
12 AM Scattered ShowersUV: 0 |
61°F Feels 60°F |
71% | 2.5 SSE | 29.98 | 51.8°F | 21% |
1 AM Scattered ShowersUV: 0 |
61°F Feels 60°F |
72% | 2.7 SSE | 29.97 | 52.2°F | 24% |
2 AM Scattered ShowersUV: 0 |
58°F Feels 58°F |
85% | 2.9 ESE | 29.99 | 54°F | 27% |
3 AM Light Rain ShowerUV: 0 |
61°F Feels 60°F |
74% | 3.1 SE | 29.97 | 52.6°F | 26% Rain est. 0.01in |
4 AM Light Rain ShowerUV: 0 |
61°F Feels 60°F |
75% | 3.8 SE | 29.96 | 52.8°F | 31% Rain est. 0.01in |
5 AM Scattered ShowersUV: 0 |
58°F Feels 57°F |
85% | 3.4 E | 29.97 | 53.4°F | 32% |
6 AM Light Rain ShowerUV: 0 |
61°F Feels 59°F |
76% | 4.5 ESE | 29.96 | 53.2°F | 28% Rain est. 0.01in |
7 AM Scattered ShowersUV: 0 |
61°F Feels 59°F |
76% | 4 ESE | 29.96 | 53.1°F | 20% |
8 AM Sunny UV: 0.2 |
59°F Feels 58°F |
81% | 3.8 E | 29.99 | 53.3°F | 10% |
9 AM SunnyUV: 0.8 |
64°F Feels 62°F |
69% | 5.6 SE | 29.97 | 53.5°F | 6% |
10 AM Scattered ShowersUV: 2.1 |
66°F Feels 64°F |
64% | 5.4 SSE | 29.97 | 53.2°F | 11% |
11 AM Scattered ShowersUV: 3.7 |
67°F Feels 67°F |
61% | 2.9 SW | 29.98 | 53.4°F | 14% |
12 PM Scattered ShowersUV: 4.4 |
69°F Feels 67°F |
57% | 6.3 SW | 29.95 | 53.2°F | 17% |
1 PM Scattered ShowersUV: 4.7 |
70°F Feels 66°F |
56% | 8.7 WSW | 29.93 | 53.5°F | 12% |
2 PM Scattered ShowersUV: 4 |
69°F Feels 66°F |
59% | 8.1 WSW | 29.93 | 54°F | 17% |
3 PM Scattered ShowersUV: 2.7 |
69°F Feels 64°F |
60% | 11.6 WSW | 29.89 | 54.2°F | 14% |
4 PM Scattered ShowersUV: 1.3 |
68°F Feels 63°F |
63% | 11.6 WSW | 29.89 | 54.7°F | 14% |
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