St. Marks Weather Forecast 15 Days, Weather in St. Marks Today
Current weather conditions and 15 day weather forecast for St. Marks, 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 St. Marks
| 11 May 2026 Monday 21.1 ° C / 70°F  Overcast |
Feels Like : 21.1 ° C / 70°F Humidity : % 97 Pressure : 1016 mb Wind Speed : 3.6 kmph / 2.2 miles from NNE  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 100 |
15 day weather forecast for St. Marks, FL, USA
Weather Forecast for next 15 Days for St. Marks 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 St. Marks, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 11 May 2026 Monday |  Moderate rain |
20.1 ° C (68.2°F) |
32.2 ° C (90°F) |
24.8 ° C (76.6°F) |
% 79 | 87% | 10 | Sunrise:06:46 AM Sunset: 08:21 PM |
Moonrise:03:18 AM Moonset: 03:04 PM Moon Phase ( Waning Crescent ) |
|
| 12 May 2026 Tuesday | Moderate rain |
19.5 ° C (67.2°F) |
27.1 ° C (80.8°F) |
22.2 ° C (72°F) |
% 82 | 90% | 9.5 | Sunrise:06:45 AM Sunset: 08:22 PM |
Moonrise:03:47 AM Moonset: 04:04 PM Moon Phase ( Waning Crescent ) |
|
| 13 May 2026 Wednesday |  Partly Cloudy |
17.4 ° C (63.4°F) |
29 ° C (84.1°F) |
23 ° C (73.3°F) |
% 72 | 0% | 9.4 | Sunrise:06:44 AM Sunset: 08:23 PM |
Moonrise:04:17 AM Moonset: 05:08 PM Moon Phase ( Waning Crescent ) |
|
| 14 May 2026 Thursday |  Sunny |
20.1 ° C (68.1°F) |
30.2 ° C (86.4°F) |
24.7 ° C (76.5°F) |
% 55 | 0% | 9.4 | Sunrise:06:44 AM Sunset: 08:23 PM |
Moonrise:04:50 AM Moonset: 06:15 PM Moon Phase ( Waning Crescent ) |
|
| 15 May 2026 Friday | Sunny |
15.6 ° C (60.2°F) |
29.6 ° C (85.3°F) |
21.8 ° C (71.2°F) |
% 47 | 0% | 0.4 | Sunrise:06:43 AM Sunset: 08:24 PM |
Moonrise:05:27 AM Moonset: 07:27 PM Moon Phase ( Waning Crescent ) |
|
| 16 May 2026 Saturday | Sunny |
20.7 ° C (69.3°F) |
30.3 ° C (86.5°F) |
25.3 ° C (77.5°F) |
% 65 | 0% | 7 | Sunrise:06:42 AM Sunset: 08:24 PM |
Moonrise:06:09 AM Moonset: 08:42 PM Moon Phase ( New Moon ) |
|
| 17 May 2026 Sunday | Sunny |
21.1 ° C (69.9°F) |
31.3 ° C (88.3°F) |
25.5 ° C (77.9°F) |
% 66 | 0% | 7 | Sunrise:06:42 AM Sunset: 08:25 PM |
Moonrise:07:01 AM Moonset: 09:56 PM Moon Phase ( Waxing Crescent ) |
|
| 18 May 2026 Monday | Sunny |
19.9 ° C (67.8°F) |
33.6 ° C (92.5°F) |
26.1 ° C (79°F) |
% 57 | 0% | 7 | Sunrise:06:41 AM Sunset: 08:26 PM |
Moonrise:08:02 AM Moonset: 11:04 PM Moon Phase ( Waxing Crescent ) |
|
| 19 May 2026 Tuesday | Sunny |
21.5 ° C (70.8°F) |
34.9 ° C (94.7°F) |
27.7 ° C (81.8°F) |
% 54 | 0% | 7 | Sunrise:06:41 AM Sunset: 08:26 PM |
Moonrise:09:10 AM Moonset: No moonset Moon Phase ( Waxing Crescent ) |
|
| 20 May 2026 Wednesday | Sunny |
23 ° C (73.5°F) |
34.1 ° C (93.4°F) |
27.7 ° C (81.9°F) |
% 56 | 0% | 7 | Sunrise:06:40 AM Sunset: 08:27 PM |
Moonrise:10:21 AM Moonset: 12:04 AM Moon Phase ( Waxing Crescent ) |
|
| 21 May 2026 Thursday | Partly Cloudy |
23.1 ° C (73.6°F) |
34.2 ° C (93.6°F) |
28.1 ° C (82.5°F) |
% 55 | 0% | 7 | Sunrise:06:40 AM Sunset: 08:28 PM |
Moonrise:11:32 AM Moonset: 12:53 AM Moon Phase ( Waxing Crescent ) |
|
| 22 May 2026 Friday | Sunny |
22.9 ° C (73.2°F) |
34.7 ° C (94.5°F) |
28.1 ° C (82.6°F) |
% 54 | 0% | 7 | Sunrise:06:39 AM Sunset: 08:28 PM |
Moonrise:12:39 PM Moonset: 01:34 AM Moon Phase ( Waxing Crescent ) |
|
| 23 May 2026 Saturday | Sunny |
23.3 ° C (74°F) |
35.8 ° C (96.5°F) |
28.8 ° C (83.9°F) |
% 52 | 0% | 7 | Sunrise:06:39 AM Sunset: 08:29 PM |
Moonrise:01:42 PM Moonset: 02:09 AM Moon Phase ( First Quarter ) |
|
| 24 May 2026 Sunday |  Patchy rain nearby |
21.5 ° C (70.7°F) |
31.7 ° C (89.1°F) |
25.9 ° C (78.7°F) |
% 75 | 84% | 6 | Sunrise:06:38 AM Sunset: 08:29 PM |
Moonrise:02:40 PM Moonset: 02:39 AM Moon Phase ( Waxing Gibbous ) |
|
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