Marathon Weather Forecast 15 Days, Weather in Marathon Today
Current weather conditions and 15 day weather forecast for Marathon, Florida, USA including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain risk, wind speed, cloud, pressure, and UV index.
Current weather conditions at Marathon
| 21 August 2026 Friday 29.6 ° C / 85.3°F  Heavy rain at times |
Feels Like : 36 ° C / 96.8°F Humidity : % 78 Pressure : 1016 mb Wind Speed : 6.8 kmph / 4.3 miles from WSW  Visibility : 10 km Precipitation (rainfall) : 29.68 mm Cloud (%) : 78 |
15 day weather forecast for Marathon, FL, USA
Weather Forecast for next 15 Days for Marathon including weather warnings, temperature, rain, wind speed, cloud, snow, wind speed and wind direction, pressure and UV index.Here is weather for the next 15 days in Marathon, Florida state, US. To see the daily forecast, scroll to the table below.
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 20 August 2026 Thursday |  Overcast |
27.3 ° C (81.1°F) |
30.3 ° C (86.5°F) |
29.7 ° C (85.4°F) |
% 76 | 83% | 10.4 | Sunrise:07:00 AM Sunset: 07:54 PM |
Moonrise:02:47 PM Moonset: 12:30 AM Moon Phase ( First Quarter ) |
|
| 21 August 2026 Friday | Overcast |
29.2 ° C (84.6°F) |
29.6 ° C (85.3°F) |
29.4 ° C (84.9°F) |
% 72 | 82% | 10.6 | Sunrise:07:01 AM Sunset: 07:53 PM |
Moonrise:03:42 PM Moonset: 01:18 AM Moon Phase ( First Quarter ) |
|
| 22 August 2026 Saturday |  Patchy rain nearby |
29 ° C (84.2°F) |
30.2 ° C (86.3°F) |
29.6 ° C (85.3°F) |
% 70 | 36% | 10.7 | Sunrise:07:01 AM Sunset: 07:52 PM |
Moonrise:04:34 PM Moonset: 02:09 AM Moon Phase ( Waxing Gibbous ) |
|
| 23 August 2026 Sunday | Patchy rain nearby |
28.7 ° C (83.6°F) |
30 ° C (86°F) |
29.4 ° C (84.9°F) |
% 71 | 57% | 10.3 | Sunrise:07:02 AM Sunset: 07:51 PM |
Moonrise:05:20 PM Moonset: 03:03 AM Moon Phase ( Waxing Gibbous ) |
|
| 24 August 2026 Monday | Patchy rain nearby |
29.2 ° C (84.6°F) |
30.2 ° C (86.3°F) |
29.6 ° C (85.3°F) |
% 71 | 66% | 6 | Sunrise:07:02 AM Sunset: 07:51 PM |
Moonrise:06:02 PM Moonset: 03:59 AM Moon Phase ( Waxing Gibbous ) |
|
| 25 August 2026 Tuesday |  Sunny |
29.3 ° C (84.7°F) |
30 ° C (85.9°F) |
29.6 ° C (85.3°F) |
% 73 | 57% | 7 | Sunrise:07:02 AM Sunset: 07:50 PM |
Moonrise:06:39 PM Moonset: 04:54 AM Moon Phase ( Full Moon ) |
|
| 26 August 2026 Wednesday | Patchy rain nearby |
29.4 ° C (84.9°F) |
29.9 ° C (85.7°F) |
29.7 ° C (85.4°F) |
% 72 | 44% | 7 | Sunrise:07:03 AM Sunset: 07:49 PM |
Moonrise:07:12 PM Moonset: 05:47 AM Moon Phase ( Full Moon ) |
|
| 27 August 2026 Thursday | Patchy rain nearby |
29.5 ° C (85.1°F) |
29.9 ° C (85.9°F) |
29.7 ° C (85.5°F) |
% 73 | 70% | 6 | Sunrise:07:03 AM Sunset: 07:48 PM |
Moonrise:07:43 PM Moonset: 06:40 AM Moon Phase ( Full Moon ) |
|
| 28 August 2026 Friday |  Light rain shower |
27.4 ° C (81.2°F) |
30.4 ° C (86.6°F) |
29.6 ° C (85.3°F) |
% 70 | 82% | 6 | Sunrise:07:04 AM Sunset: 07:47 PM |
Moonrise:08:12 PM Moonset: 07:31 AM Moon Phase ( Full Moon ) |
|
| 29 August 2026 Saturday | Light rain shower |
27.8 ° C (82°F) |
29.6 ° C (85.3°F) |
28.9 ° C (84°F) |
% 70 | 82% | 6 | Sunrise:07:04 AM Sunset: 07:46 PM |
Moonrise:08:41 PM Moonset: 08:23 AM Moon Phase ( Waning Gibbous ) |
|
| 30 August 2026 Sunday | Overcast |
28.1 ° C (82.6°F) |
29.5 ° C (85.2°F) |
28.9 ° C (84°F) |
% 66 | 57% | 7 | Sunrise:07:04 AM Sunset: 07:45 PM |
Moonrise:09:11 PM Moonset: 09:14 AM Moon Phase ( Waning Gibbous ) |
|
| 31 August 2026 Monday | Sunny |
28.8 ° C (83.8°F) |
29.8 ° C (85.7°F) |
29.3 ° C (84.7°F) |
% 66 | 5% | 7 | Sunrise:07:05 AM Sunset: 07:44 PM |
Moonrise:09:43 PM Moonset: 10:08 AM Moon Phase ( Waning Gibbous ) |
|
| 01 September 2026 Tuesday | Sunny |
29.1 ° C (84.4°F) |
29.8 ° C (85.7°F) |
29.5 ° C (85.1°F) |
% 67 | 9% | 7 | Sunrise:07:05 AM Sunset: 07:43 PM |
Moonrise:10:19 PM Moonset: 11:04 AM Moon Phase ( Waning Gibbous ) |
|
| 02 September 2026 Wednesday | Patchy rain nearby |
29 ° C (84.2°F) |
30.2 ° C (86.4°F) |
29.5 ° C (85.1°F) |
% 70 | 76% | 6 | Sunrise:07:05 AM Sunset: 07:42 PM |
Moonrise:11:00 PM Moonset: 12:02 PM Moon Phase ( Last Quarter ) |
|
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