Currently: 78 °F. Sunny. (Weather station: Santa Barbara Municipal Airport, USA). See more current weatherPast Weather in San Marcos — Graph
°F
Time
Wind
(mph)
(mph)
Temp
(°F)
(°F)
54
57
60
63
66
69
72
75
78
Mon, Aug 4
Lo:66
12 pm
Hi:66
7
Lo:63
6 pm
Hi:66
4
Tue, Aug 5
Lo:55
12 am
Hi:61
1
Lo:57
6 am
Hi:70
6
Lo:70
12 pm
Hi:75
6
Lo:63
6 pm
Hi:66
5
Wed, Aug 6
Lo:57
12 am
Hi:61
1
Lo:59
6 am
Hi:75
4
Lo:70
12 pm
Hi:73
8
Lo:59
6 pm
Hi:66
2
Thu, Aug 7
Lo:57
12 am
Hi:61
6
Lo:57
6 am
Hi:68
5
Lo:68
12 pm
Hi:75
7
Lo:63
6 pm
Hi:64
4
Fri, Aug 8
Lo:57
12 am
Hi:61
1
Lo:59
6 am
Hi:66
4
Lo:68
12 pm
Hi:72
7
Lo:61
6 pm
Hi:68
4
Sat, Aug 9
Lo:57
12 am
Hi:61
7
Lo:57
6 am
Hi:66
6
Lo:64
12 pm
Hi:66
12
Lo:61
6 pm
Hi:64
6
Sun, Aug 10
Lo:57
12 am
Hi:61
7
Lo:57
6 am
Hi:63
7
Lo:63
12 pm
Hi:70
8
Lo:61
6 pm
Hi:63
6
Mon, Aug 11
Lo:55
12 am
Hi:61
1
Lo:55
6 am
Hi:66
2
Lo:64
12 pm
Hi:70
7
Lo:63
6 pm
Hi:64
5
Tue, Aug 12
Lo:55
12 am
Hi:63
1
Lo:57
6 am
Hi:66
7
Lo:66
12 pm
Hi:70
7
Lo:61
6 pm
Hi:63
4
Wed, Aug 13
Lo:57
12 am
Hi:61
4
Lo:61
6 am
Hi:64
6
Lo:66
12 pm
Hi:68
7
Lo:63
6 pm
Hi:64
4
Thu, Aug 14
Lo:55
12 am
Hi:61
2
Lo:57
6 am
Hi:66
7
Lo:66
12 pm
Hi:70
9
Lo:59
6 pm
Hi:64
5
Fri, Aug 15
Lo:57
12 am
Hi:63
2
Lo:63
6 am
Hi:66
5
Lo:66
12 pm
Hi:70
8
Lo:61
6 pm
Hi:66
4
Sat, Aug 16
Lo:59
12 am
Hi:63
2
Lo:63
6 am
Hi:72
3
Lo:70
12 pm
Hi:72
9
Lo:63
6 pm
Hi:66
5
Sun, Aug 17
Lo:59
12 am
Hi:63
1
Lo:64
6 am
Hi:70
6
Lo:70
12 pm
Hi:72
7
Lo:66
6 pm
Hi:68
5
Mon, Aug 18
Lo:64
12 am
Hi:64
4
Lo:63
6 am
Hi:72
7
Lo:73
12 pm
Hi:75
7
Lo:66
6 pm
Hi:73
4
Tue, Aug 19
Lo:59
12 am
Hi:64
1
Lo:61
6 am
Hi:72
6
Lo:75
12 pm
Hi:79
9
Monday, August 4, 2025, 12:00 pm — 6:00 pm
66 / 66 °F
Sunny.
Humidity: 76%
Barometer: 29.9 "Hg
SE
Wind: 7.457 mph
San Marcos Temperature Yesterday
Maximum temperature yesterday: 76 °F (at 2:53 pm)
Minimum temperature yesterday: 63 °F (at 6:53 am)
Average temperature yesterday: 69 °F
High & Low Weather Summary for the Past Weeks
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 78 °F (Aug 19, 2:53 pm) | 100% (Aug 10, 5:53 am) | 30.05 "Hg (Aug 10, 5:53 am) |
| Low | 55 °F (Aug 11, 6:53 am) | 48% (Aug 5, 3:53 pm) | 29.83 "Hg (Aug 14, 6:53 pm) |
| Average | 64 °F | 83% | 29.93 "Hg |
| * Reported Aug 4 2:53 pm — Aug 19 2:53 pm, San Marcos. Weather by CustomWeather, © 2025 | |||
Note: Actual official high and low records may vary slightly from our data, if they occured in-between our weather recording intervals... More about our weather records
San Marcos Weather History for the Previous 24 Hours
Scroll right to see more
| Conditions | Comfort | |||||||
|---|---|---|---|---|---|---|---|---|
| Time | Temp | Weather | Wind | Humidity | Barometer | Visibility | ||
| 2:53 pm Tue, Aug 19 | | 78 °F | Sunny. | 9 mph | ↑ | 52% | 29.99 "Hg | 10 mi |
| 1:53 pm | | 75 °F | Sunny. | 9 mph | ↑ | 60% | 30.01 "Hg | 10 mi |
| 12:53 pm | | 76 °F | Sunny. | 8 mph | ↑ | 64% | 30.01 "Hg | 10 mi |
| 11:53 am | | 72 °F | Sunny. | 7 mph | ↑ | 73% | 30.02 "Hg | 10 mi |
| 10:53 am | | 72 °F | Sunny. | 10 mph | ↑ | 76% | 30.02 "Hg | 10 mi |
| 9:53 am | | 72 °F | Sunny. | 8 mph | ↑ | 73% | 30.02 "Hg | 10 mi |
| 8:53 am | | 71 °F | Sunny. | 8 mph | ↑ | 76% | 30.02 "Hg | 10 mi |
| 7:53 am | | 67 °F | Sunny. | No wind | ↑ | 81% | 30.01 "Hg | 10 mi |
| 6:53 am | | 60 °F | Sunny. | 3 mph | ↑ | 90% | 30.00 "Hg | 10 mi |
| 5:53 am |  | 59 °F | Clear. | No wind | ↑ | 90% | 29.98 "Hg | 10 mi |
| 4:53 am | | 60 °F | Clear. | No wind | ↑ | 86% | 29.96 "Hg | 10 mi |
| 3:53 am | | 61 °F | Clear. | No wind | ↑ | 87% | 29.95 "Hg | 10 mi |
| 2:53 am | | 62 °F | Clear. | No wind | ↑ | 86% | 29.95 "Hg | 10 mi |
| 1:53 am | | 64 °F | Clear. | 5 mph | ↑ | 84% | 29.95 "Hg | 10 mi |
| 12:53 am | | 64 °F | Clear. | 5 mph | ↑ | 84% | 29.95 "Hg | 10 mi |
| 11:53 pm Mon, Aug 18 | | 67 °F | Clear. | No wind | ↑ | 81% | 29.94 "Hg | 10 mi |
| 10:53 pm | | 68 °F | Clear. | 6 mph | ↑ | 78% | 29.92 "Hg | 10 mi |
| 9:53 pm | | 67 °F | Clear. | 3 mph | ↑ | 87% | 29.91 "Hg | 9 mi |
| 8:53 pm | | 67 °F | Clear. | 5 mph | ↑ | 85% | 29.90 "Hg | 10 mi |
| 7:53 pm | | 69 °F | Clear. | 5 mph | ↑ | 76% | 29.90 "Hg | 10 mi |
| 6:53 pm | | 74 °F | Sunny. | 3 mph | ↑ | 57% | 29.90 "Hg | 10 mi |
| 5:53 pm | | 75 °F | Sunny. | 3 mph | ↑ | 58% | 29.91 "Hg | 10 mi |
| 4:53 pm | | 75 °F | Sunny. | 6 mph | ↑ | 60% | 29.91 "Hg | 10 mi |
| Weather by CustomWeather, © 2025 | ||||||||