Currently: 71 °F. Passing clouds. (Weather station: Key West International Airport, USA). See more current weatherPast Weather in City of Marathon — Graph
City of Marathon Temperature Yesterday
Maximum temperature yesterday: 79 °F (at 2:53 pm)
Minimum temperature yesterday: 68 °F (at 5:53 am)
Average temperature yesterday: 72 °F
High & Low Weather Summary for the Past Weeks
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 80 °F (Jan 9, 1:53 pm) | 100% (Jan 8, 7:53 am) | 30.29 "Hg (Jan 8, 7:53 am) |
| Low | 55 °F (Jan 16, 6:53 am) | 29% (Jan 16, 3:53 pm) | 29.85 "Hg (Jan 15, 4:53 am) |
| Average | 71 °F | 80% | 30.10 "Hg |
| * Reported Jan 8 7:53 am — Jan 23 7:53 am, City of Marathon. 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
City of Marathon Weather History for the Previous 24 Hours
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| Conditions | Comfort | |||||||
|---|---|---|---|---|---|---|---|---|
| Time | Temp | Weather | Wind | Humidity | Barometer | Visibility | ||
| 7:53 am Fri, Jan 23 | | 69 °F | Passing clouds. | 7 mph | ↑ | 93% | 30.08 "Hg | 10 mi |
| 7:39 am | | 68 °F | Passing clouds. | 7 mph | ↑ | 96% | 30.06 "Hg | 10 mi |
| 6:53 am |  | 69 °F | Mild. | 7 mph | ↑ | 96% | 30.07 "Hg | N/A |
| 8:53 pm Thu, Jan 22 |  | 70 °F | Clear. | 7 mph | ↑ | 93% | 30.09 "Hg | 10 mi |
| 7:53 pm | | 70 °F | Clear. | 9 mph | ↑ | 93% | 30.07 "Hg | 10 mi |
| 7:12 pm |  | 70 °F | Passing clouds. | 12 mph | ↑ | 93% | 30.05 "Hg | 8 mi |
| 6:53 pm |  | 73 °F | Partly cloudy. | 6 mph | ↑ | 90% | 30.05 "Hg | 10 mi |
| 5:53 pm | | 73 °F | Scattered clouds. | 6 mph | ↑ | 84% | 30.05 "Hg | 10 mi |
| 4:53 pm | | 76 °F | Scattered clouds. | 8 mph | ↑ | 80% | 30.04 "Hg | 10 mi |
| 4:07 pm | | 75 °F | Scattered clouds. | 8 mph | ↑ | 82% | 30.02 "Hg | 10 mi |
| 2:53 pm |  | 79 °F | Partly sunny. | 7 mph | ↑ | 69% | 30.04 "Hg | 10 mi |
| 1:53 pm | | 78 °F | Scattered clouds. | 8 mph | ↑ | 74% | 30.05 "Hg | 10 mi |
| 12:53 pm | | 76 °F | Scattered clouds. | 10 mph | ↑ | 77% | 30.08 "Hg | 10 mi |
| 11:53 am | | 76 °F | Passing clouds. | 9 mph | ↑ | 77% | 30.11 "Hg | 10 mi |
| 10:53 am | | 73 °F | Passing clouds. | 10 mph | ↑ | 81% | 30.14 "Hg | 10 mi |
| 9:53 am | | 71 °F | Passing clouds. | 9 mph | ↑ | 84% | 30.14 "Hg | 10 mi |
| Weather by CustomWeather, © 2026 | ||||||||