Currently: 80 °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)
77
78
79
80
81
82
83
84
85
86
87
88
May 4 – May 10
0.02
Lo:78
Mon, 5
Hi:86
10
0.03
Lo:79
Tue, 6
Hi:87
15
Lo:79
Wed, 7
Hi:85
15
Lo:79
Thu, 8
Hi:86
12
Lo:79
Fri, 9
Hi:86
10
0.28
Lo:79
Sat, 10
Hi:86
11
May 11 – May 17
0.06
Lo:80
Sun, 11
Hi:87
8
0.1
Lo:80
Mon, 12
Hi:83
13
Lo:81
Tue, 13
Hi:82
13
Lo:81
Wed, 14
Hi:82
13
Lo:81
Thu, 15
Hi:83
9
Lo:81
Fri, 16
Hi:83
7
Lo:82
Sat, 17
Hi:85
9
May 18 – May 24
Lo:82
Sun, 18
Hi:85
4
Lo:82
Mon, 19
Hi:84
5
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 | ||
| Mon May 5 |  | 86 / 78 °F | Showers late. Partly cloudy. | 92 °F | 10 mph | ↑ | 69% | 39% | 0.02" | 7 (High) | 6:46 am | 7:56 pm |
| Tue May 6 | | 87 / 79 °F | Showers late. Partly cloudy. | 93 °F | 15 mph | ↑ | 67% | 24% | 0.03" | 7 (High) | 6:45 am | 7:56 pm |
| Wed May 7 |  | 85 / 79 °F | Broken clouds. | 90 °F | 15 mph | ↑ | 64% | 21% | 0.00" | 7 (High) | 6:44 am | 7:57 pm |
| Thu May 8 | | 86 / 79 °F | Broken clouds. | 91 °F | 12 mph | ↑ | 63% | 0% | - | 7 (High) | 6:44 am | 7:57 pm |
| Fri May 9 | | 86 / 79 °F | Broken clouds. | 92 °F | 10 mph | ↑ | 65% | 0% | - | 10 (Very high) | 6:43 am | 7:58 pm |
| Sat May 10 |  | 86 / 79 °F | A few tstorms. Cloudy. | 92 °F | 11 mph | ↑ | 71% | 68% | 0.28" | 5 (Moderate) | 6:42 am | 7:58 pm |
| Sun May 11 | | 87 / 80 °F | Showers late. Cloudy. | 93 °F | 8 mph | ↑ | 67% | 21% | 0.06" | 5 (Moderate) | 6:42 am | 7:59 pm |
| Mon May 12 | | 83 / 80 °F | Isolated tstorms. Overcast. | 88 °F | 13 mph | ↑ | 83% | 42% | 0.10" | 5 (Moderate) | 6:41 am | 7:59 pm |
| Tue May 13 |  | 82 / 81 °F | Decreasing cloudiness. | 89 °F | 13 mph | ↑ | 79% | 5% | - | 10 (Very high) | 6:41 am | 8:00 pm |
| Wed May 14 |  | 82 / 81 °F | Sunny. | 90 °F | 13 mph | ↑ | 81% | 5% | - | 10 (Very high) | 6:40 am | 8:00 pm |
| Thu May 15 | | 83 / 81 °F | Sunny. | 89 °F | 9 mph | ↑ | 76% | 5% | - | 10 (Very high) | 6:40 am | 8:01 pm |
| Fri May 16 | | 83 / 81 °F | Sunny. | 89 °F | 7 mph | ↑ | 76% | 6% | - | 10 (Very high) | 6:39 am | 8:01 pm |
| Sat May 17 | | 85 / 82 °F | Sunny. | 90 °F | 9 mph | ↑ | 76% | 4% | - | 10 (Very high) | 6:39 am | 8:02 pm |
| Sun May 18 | | 85 / 82 °F | Scattered clouds. | 90 °F | 4 mph | ↑ | 74% | 4% | - | 7 (High) | 6:39 am | 8:02 pm |
| Mon May 19 | | 84 / 82 °F | Sunny. | 90 °F | 5 mph | ↑ | 72% | 5% | - | 10 (Very high) | 6:38 am | 8:03 pm |
| * Updated Sunday, May 4, 2025 5:24:11 pm Marathon time - Weather by CustomWeather, © 2025 | ||||||||||||