Merritt Island Weather Forecast 15 Days, Weather in Merritt Island Today
Current weather conditions and 15 day weather forecast for Merritt Island, 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 Merritt Island
| 15 December 2025 Monday 17.3 ° C / 63.1°F  Overcast |
Feels Like : 17.3 ° C / 63.1°F Humidity : % 66 Pressure : 1022 mb Wind Speed : 25.2 kmph / 15.7 miles from N  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 100 |
15 day weather forecast for Merritt Island, FL, USA
Weather Forecast for next 15 Days for Merritt Island 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 Merritt Island, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 15 December 2025 Monday | Overcast |
14.7 ° C (58.5°F) |
16.8 ° C (62.2°F) |
15.9 ° C (60.6°F) |
% 79 | 0% | 0.2 | Sunrise:07:08 AM Sunset: 05:28 PM |
Moonrise:03:17 AM Moonset: 02:18 PM Moon Phase ( Waning Crescent ) |
|
| 16 December 2025 Tuesday |  Partly Cloudy |
17.5 ° C (63.5°F) |
19.6 ° C (67.3°F) |
18.5 ° C (65.2°F) |
% 70 | 0% | 0.5 | Sunrise:07:09 AM Sunset: 05:29 PM |
Moonrise:04:12 AM Moonset: 02:52 PM Moon Phase ( Waning Crescent ) |
|
| 17 December 2025 Wednesday |  Patchy rain nearby |
18.3 ° C (64.9°F) |
20.8 ° C (69.4°F) |
19.7 ° C (67.4°F) |
% 72 | 85% | 0.6 | Sunrise:07:10 AM Sunset: 05:29 PM |
Moonrise:05:08 AM Moonset: 03:30 PM Moon Phase ( Waning Crescent ) |
|
| 18 December 2025 Thursday | Patchy rain nearby |
19.1 ° C (66.3°F) |
23.4 ° C (74.1°F) |
20.6 ° C (69.1°F) |
% 84 | 86% | 0.3 | Sunrise:07:10 AM Sunset: 05:30 PM |
Moonrise:06:04 AM Moonset: 04:14 PM Moon Phase ( Waning Crescent ) |
|
| 19 December 2025 Friday | Patchy rain nearby |
19.2 ° C (66.6°F) |
26.5 ° C (79.7°F) |
21.3 ° C (70.4°F) |
% 86 | 79% | 0 | Sunrise:07:11 AM Sunset: 05:30 PM |
Moonrise:07:00 AM Moonset: 05:04 PM Moon Phase ( New Moon ) |
|
| 20 December 2025 Saturday | Patchy rain nearby |
19.6 ° C (67.4°F) |
24.6 ° C (76.2°F) |
21.7 ° C (71.1°F) |
% 84 | 86% | 5 | Sunrise:07:11 AM Sunset: 05:31 PM |
Moonrise:07:52 AM Moonset: 05:58 PM Moon Phase ( New Moon ) |
|
| 21 December 2025 Sunday | Partly Cloudy |
20.7 ° C (69.2°F) |
25.9 ° C (78.6°F) |
22.7 ° C (72.8°F) |
% 84 | 0% | 6 | Sunrise:07:12 AM Sunset: 05:31 PM |
Moonrise:08:39 AM Moonset: 06:56 PM Moon Phase ( Waxing Crescent ) |
|
| 22 December 2025 Monday | Patchy rain nearby |
18.9 ° C (66°F) |
20.3 ° C (68.5°F) |
20 ° C (68°F) |
% 89 | 80% | 4 | Sunrise:07:12 AM Sunset: 05:32 PM |
Moonrise:09:22 AM Moonset: 07:55 PM Moon Phase ( Waxing Crescent ) |
|
| 23 December 2025 Tuesday | Patchy rain nearby |
18.8 ° C (65.9°F) |
21 ° C (69.9°F) |
19.8 ° C (67.7°F) |
% 60 | 0% | 4 | Sunrise:07:13 AM Sunset: 05:32 PM |
Moonrise:09:59 AM Moonset: 08:54 PM Moon Phase ( Waxing Crescent ) |
|
| 24 December 2025 Wednesday | Patchy rain nearby |
19.7 ° C (67.5°F) |
23 ° C (73.4°F) |
21.5 ° C (70.7°F) |
% 57 | 82% | 5 | Sunrise:07:13 AM Sunset: 05:33 PM |
Moonrise:10:33 AM Moonset: 09:53 PM Moon Phase ( Waxing Crescent ) |
|
| 25 December 2025 Thursday |  Sunny |
17.7 ° C (63.8°F) |
21.6 ° C (70.8°F) |
19.6 ° C (67.3°F) |
% 62 | 0% | 5 | Sunrise:07:14 AM Sunset: 05:33 PM |
Moonrise:11:04 AM Moonset: 10:52 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday | Patchy rain nearby |
17.4 ° C (63.2°F) |
19.8 ° C (67.6°F) |
18.9 ° C (65.9°F) |
% 66 | 88% | 4 | Sunrise:07:14 AM Sunset: 05:34 PM |
Moonrise:11:35 AM Moonset: 11:51 PM Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday | Patchy rain nearby |
19.3 ° C (66.8°F) |
21.2 ° C (70.1°F) |
20.2 ° C (68.3°F) |
% 66 | 88% | 5 | Sunrise:07:14 AM Sunset: 05:34 PM |
Moonrise:12:05 PM Moonset: No moonset Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday | Partly Cloudy |
19.7 ° C (67.4°F) |
24 ° C (75.2°F) |
21.2 ° C (70.2°F) |
% 70 | 0% | 6 | Sunrise:07:15 AM Sunset: 05:35 PM |
Moonrise:12:37 PM Moonset: 12:52 AM Moon Phase ( Waxing Gibbous ) |
|
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