Currently: 82 °F. Clear. (Weather station: Key West International Airport, USA). See more current weatherMarathon Extended Forecast with high and low temperatures
°F
Time
Wind
(mph)
(mph)
Rain/Snow
()
()
Temp
(°F)
(°F)
78
79
80
81
82
83
84
85
86
87
88
89
90
91
May 18 – May 24
0.01
Lo:80
Thu, 22
Hi:89
4
0.02
Lo:80
Fri, 23
Hi:88
6
Lo:81
Sat, 24
Hi:90
9
May 25 – May 31
Lo:83
Sun, 25
Hi:90
14
Lo:83
Mon, 26
Hi:90
17
Lo:83
Tue, 27
Hi:90
13
Lo:83
Wed, 28
Hi:90
9
Lo:79
Thu, 29
Hi:84
9
Lo:81
Fri, 30
Hi:83
13
Lo:79
Sat, 31
Hi:85
4
Jun 1 – Jun 7
Lo:79
Sun, 1
Hi:88
14
0.21
Lo:79
Mon, 2
Hi:89
24
0.24
Lo:79
Tue, 3
Hi:90
13
0.47
Lo:79
Wed, 4
Hi:90
13
Lo:80
Thu, 5
Hi:90
11
Thu, May 22
89 / 80 °F
Showers late. Partly cloudy.
Feels Like: 99 °F
Humidity: 65%
Precipitation: Rain: 0.01 Snow: 0
Precipitation Chance: 21%
NE
Wind: 4 mph
2 Week Extended Forecast in Marathon, Florida, USA
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| Conditions | Comfort | Precipitation | Sun | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Day | Temperature | Weather | Feels Like | Wind | Humidity | Chance | Amount | UV | Sunrise | Sunset | ||
| Thu May 22 |  | 89 / 80 °F | Showers late. Partly cloudy. | 99 °F | 4 mph | ↑ | 65% | 21% | 0.01" | 7 (High) | 6:37 am | 8:04 pm |
| Fri May 23 | | 88 / 80 °F | Passing showers. Decreasing cloudiness. | 96 °F | 6 mph | ↑ | 65% | 24% | 0.02" | 3 (Moderate) | 6:37 am | 8:05 pm |
| Sat May 24 |  | 90 / 81 °F | Cloudy. | 99 °F | 9 mph | ↑ | 65% | 21% | 0.00" | 5 (Moderate) | 6:36 am | 8:05 pm |
| Sun May 25 |  | 90 / 83 °F | Sunny. | 99 °F | 14 mph | ↑ | 60% | 5% | - | 10 (Very high) | 6:36 am | 8:06 pm |
| Mon May 26 | | 90 / 83 °F | Sunny. | 99 °F | 17 mph | ↑ | 60% | 6% | - | 10 (Very high) | 6:36 am | 8:06 pm |
| Tue May 27 | | 90 / 83 °F | Sunny. | 99 °F | 13 mph | ↑ | 61% | 6% | - | 10 (Very high) | 6:36 am | 8:07 pm |
| Wed May 28 |  | 90 / 83 °F | Mostly sunny. | 100 °F | 9 mph | ↑ | 64% | 5% | - | 10 (Very high) | 6:35 am | 8:07 pm |
| Thu May 29 | | 84 / 79 °F | Scattered clouds. | 91 °F | 9 mph | ↑ | 72% | 16% | 0.00" | 7 (High) | 6:35 am | 8:08 pm |
| Fri May 30 | | 83 / 81 °F | Decreasing cloudiness. | 84 °F | 13 mph | ↑ | 56% | 39% | 0.00" | 10 (Very high) | 6:35 am | 8:08 pm |
| Sat May 31 |  | 85 / 79 °F | Increasing cloudiness. | 85 °F | 4 mph | ↑ | 53% | 5% | - | 10 (Very high) | 6:35 am | 8:09 pm |
| Sun Jun 1 | | 88 / 79 °F | Overcast. | 90 °F | 14 mph | ↑ | 71% | 6% | - | 3 (Moderate) | 6:35 am | 8:09 pm |
| Mon Jun 2 |  | 89 / 79 °F | Thunderstorms. Overcast. | 94 °F | 24 mph | ↑ | 79% | 88% | 0.21" | 5 (Moderate) | 6:34 am | 8:10 pm |
| Tue Jun 3 | | 90 / 79 °F | Passing showers. Overcast. | 91 °F | 13 mph | ↑ | 70% | 68% | 0.24" | 3 (Moderate) | 6:34 am | 8:10 pm |
| Wed Jun 4 | | 90 / 79 °F | Thunderstorms. Overcast. | 92 °F | 13 mph | ↑ | 72% | 99% | 0.47" | 3 (Moderate) | 6:34 am | 8:10 pm |
| Thu Jun 5 | | 90 / 80 °F | Overcast. | 90 °F | 11 mph | ↑ | 68% | 40% | 0.00" | 5 (Moderate) | 6:34 am | 8:11 pm |
| * Updated Wednesday, May 21, 2025 11:24:13 pm Marathon time - Weather by CustomWeather, © 2025 | ||||||||||||