Currently: 55 °F. Clear. (Weather station: Key West International Airport, USA). See more current weatherCity of Marathon Extended Forecast with high and low temperatures
2 Week Extended Forecast in City of Marathon, Florida, USA
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| Conditions | Comfort | Precipitation | Sun | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Day | Temperature | Weather | Feels Like | Wind | Humidity | Chance | Amount | UV | Sunrise | Sunset | ||
| Fri Jan 16 |  | 67 / 55 °F | Mostly sunny. | 64 °F | 10 mph | ↑ | 52% | 3% | 0.00" | 3 (Moderate) | 7:10 am | 5:58 pm |
| Sat Jan 17 |  | 74 / 66 °F | Light rain early. Overcast. | 75 °F | 15 mph | ↑ | 72% | 20% | 0.07" | 3 (Moderate) | 7:10 am | 5:58 pm |
| Sun Jan 18 |  | 77 / 65 °F | Rain. Overcast. | 77 °F | 18 mph | ↑ | 71% | 69% | 0.52" | 0 (Low) | 7:10 am | 5:59 pm |
| Mon Jan 19 |  | 69 / 57 °F | Morning clouds. | 66 °F | 18 mph | ↑ | 52% | 0% | 0.00" | 3 (Moderate) | 7:10 am | 6:00 pm |
| Tue Jan 20 | | 75 / 62 °F | Sunny. | 77 °F | 19 mph | ↑ | 58% | 0% | 0.00" | 3 (Moderate) | 7:10 am | 6:01 pm |
| Wed Jan 21 |  | 74 / 65 °F | Mostly cloudy. | 75 °F | 24 mph | ↑ | 71% | 0% | 0.00" | 3 (Moderate) | 7:09 am | 6:01 pm |
| Thu Jan 22 |  | 78 / 69 °F | Showers late. Broken clouds. | 79 °F | 11 mph | ↑ | 74% | 22% | 0.05" | 3 (Moderate) | 7:09 am | 6:02 pm |
| Fri Jan 23 | | 79 / 73 °F | Sunny. | 76 °F | 9 mph | ↑ | 90% | 19% | 0.00" | 5 (Moderate) | 7:09 am | 6:03 pm |
| Sat Jan 24 | | 75 / 71 °F | Sunny. | 75 °F | 13 mph | ↑ | 81% | 6% | 0.00" | 5 (Moderate) | 7:09 am | 6:04 pm |
| Sun Jan 25 | | 72 / 69 °F | Sunny. | 75 °F | 23 mph | ↑ | 65% | 4% | 0.00" | 5 (Moderate) | 7:08 am | 6:04 pm |
| Mon Jan 26 | | 73 / 69 °F | Mostly sunny. | 76 °F | 14 mph | ↑ | 63% | 6% | 0.00" | 3 (Moderate) | 7:08 am | 6:05 pm |
| Tue Jan 27 | | 73 / 69 °F | Sprinkles early. Broken clouds. | 75 °F | 22 mph | ↑ | 67% | 48% | 0.02" | 3 (Moderate) | 7:08 am | 6:06 pm |
| Wed Jan 28 | | 73 / 68 °F | Sprinkles early. Decreasing cloudiness. | 75 °F | 16 mph | ↑ | 71% | 51% | 0.02" | 3 (Moderate) | 7:08 am | 6:06 pm |
| Thu Jan 29 | | 73 / 68 °F | Sunny. | 73 °F | 17 mph | ↑ | 79% | 9% | 0.00" | 5 (Moderate) | 7:07 am | 6:07 pm |
| Fri Jan 30 | | 74 / 69 °F | Sunny. | 74 °F | 17 mph | ↑ | 80% | 7% | 0.00" | 5 (Moderate) | 7:07 am | 6:08 pm |
| * Updated Friday, January 16, 2026 4:24:05 am City of Marathon time - Weather by CustomWeather, © 2026 | ||||||||||||