Currently: 56 °F. Fog. (Weather station: John Wayne Airport-Orange County Airport, USA). See more current weatherPast Weather in Costa Mesa — Graph
Costa Mesa Temperature Yesterday
Maximum temperature yesterday: 73 °F (at 1:53 pm)
Minimum temperature yesterday: 50 °F (at 4:53 am)
Average temperature yesterday: 58 °F
High & Low Weather Summary for the Past Weeks
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 86 °F (Jan 14, 2:53 pm) | 100% (Jan 16, 9:43 pm) | 30.40 "Hg (Jan 16, 9:43 pm) |
| Low | 48 °F (Jan 8, 4:53 am) | 11% (Jan 9, 11:53 am) | 29.88 "Hg (Jan 7, 3:53 pm) |
| Average | 61 °F | 53% | 30.09 "Hg |
| * Reported Jan 6 4:53 am — Jan 21 4:53 am, Costa Mesa. Weather by CustomWeather, © 2026 | |||
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
Costa Mesa Weather History for the Previous 24 Hours
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| Conditions | Comfort | |||||||
|---|---|---|---|---|---|---|---|---|
| Time | Temp | Weather | Wind | Humidity | Barometer | Visibility | ||
| 4:53 am Wed, Jan 21 | | 56 °F | Fog. | No wind | ↑ | 87% | 30.08 "Hg | 4 mi |
| 3:53 am | | 56 °F | Fog. | 3 mph | ↑ | 90% | 30.07 "Hg | 5 mi |
| 1:53 am | | 55 °F | Fog. | 3 mph | ↑ | 93% | 30.10 "Hg | 5 mi |
| 12:53 am | | 55 °F | Fog. | 7 mph | ↑ | 93% | 30.09 "Hg | 5 mi |
| 12:03 am | | 57 °F | Fog. | 7 mph | ↑ | 93% | 30.09 "Hg | 6 mi |
| 11:53 pm Tue, Jan 20 | | 57 °F | Fog. | 7 mph | ↑ | 93% | 30.09 "Hg | 6 mi |
| 10:53 pm | | 56 °F | Fog. | No wind | ↑ | 97% | 30.06 "Hg | 3 mi |
| 10:19 pm | | 56 °F | Fog. | No wind | ↑ | 97% | 30.06 "Hg | 2 mi |
| 9:53 pm | | 55 °F | Fog. | 6 mph | ↑ | 100% | 30.06 "Hg | 1 mi |
| 9:26 pm | | 55 °F | Fog. | 5 mph | ↑ | 96% | 30.06 "Hg | 1 mi |
| 9:10 pm | | 55 °F | Fog. | 5 mph | ↑ | 96% | 30.05 "Hg | 2 mi |
| 8:53 pm | | 56 °F | Fog. | 5 mph | ↑ | 97% | 30.05 "Hg | 1 mi |
| 8:15 pm | | 56 °F | Fog. | 6 mph | ↑ | 97% | 30.05 "Hg | 1 mi |
| 7:53 pm | | 58 °F | Fog. | 3 mph | ↑ | 93% | 30.05 "Hg | 3 mi |
| 7:15 pm | | 58 °F | Fog. | 3 mph | ↑ | 97% | 30.05 "Hg | 2 mi |
| 6:53 pm | | 58 °F | Fog. | 5 mph | ↑ | 97% | 30.05 "Hg | 2 mi |
| 6:01 pm | | 59 °F | Fog. | 6 mph | ↑ | 93% | 30.05 "Hg | 2 mi |
| 5:53 pm |  | 59 °F | Fog. | 8 mph | ↑ | 90% | 30.05 "Hg | 5 mi |
| 4:53 pm |  | 60 °F | Broken clouds. | 7 mph | ↑ | 86% | 30.04 "Hg | 7 mi |
| 3:53 pm | | 66 °F | Partly sunny. | 9 mph | ↑ | 68% | 30.04 "Hg | 10 mi |
| 2:53 pm | | 70 °F | Partly sunny. | 9 mph | ↑ | 59% | 30.03 "Hg | 10 mi |
| 1:53 pm |  | 73 °F | Scattered clouds. | 5 mph | ↑ | 37% | 30.02 "Hg | 10 mi |
| 11:53 am | | 69 °F | Scattered clouds. | 3 mph | ↑ | 47% | 30.08 "Hg | 10 mi |
| 10:53 am | | 67 °F | Scattered clouds. | 6 mph | ↑ | 63% | 30.10 "Hg | 10 mi |
| 9:53 am | | 63 °F | Scattered clouds. | No wind | ↑ | 56% | 30.10 "Hg | 10 mi |
| 8:53 am | | 59 °F | Scattered clouds. | No wind | ↑ | 60% | 30.09 "Hg | 10 mi |
| 7:53 am | | 53 °F | Scattered clouds. | No wind | ↑ | 72% | 30.08 "Hg | 10 mi |
| 6:53 am | | 50 °F | Passing clouds. | No wind | ↑ | 80% | 30.06 "Hg | 10 mi |
| Weather by CustomWeather, © 2026 | ||||||||