Greenville Spartanburg International Airport Weather Forecast 15 Days, Weather in GSP Today
Current weather conditions and 15 day weather forecast for Greenville Spartanburg International Airport, South Carolina, 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 Greenville Spartanburg International Airport
| 20 December 2025 Saturday 7.2 ° C / 45°F  Clear |
Feels Like : 5.3 ° C / 41.6°F Humidity : % 26 Pressure : 1018 mb Wind Speed : 9.7 kmph / 6 miles from N  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for Greenville Spartanburg International Airport, SC, USA
Weather Forecast for next 15 Days for Greenville Spartanburg International Airport 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 Greenville Spartanburg International Airport, South Carolina 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 19 December 2025 Friday |  Moderate rain |
4.1 ° C (39.4°F) |
18.2 ° C (64.8°F) |
11.4 ° C (52.4°F) |
% 62 | 77% | 0.5 | Sunrise:07:32 AM Sunset: 05:21 PM |
Moonrise:07:27 AM Moonset: 04:49 PM Moon Phase ( New Moon ) |
|
| 20 December 2025 Saturday | Sunny |
0.3 ° C (32.5°F) |
11.7 ° C (53.1°F) |
5.7 ° C (42.2°F) |
% 54 | 0% | 0.6 | Sunrise:07:33 AM Sunset: 05:21 PM |
Moonrise:08:18 AM Moonset: 05:44 PM Moon Phase ( New Moon ) |
|
| 21 December 2025 Sunday | Sunny |
2.9 ° C (37.2°F) |
15.4 ° C (59.7°F) |
8.1 ° C (46.5°F) |
% 62 | 0% | 0.6 | Sunrise:07:33 AM Sunset: 05:22 PM |
Moonrise:09:04 AM Moonset: 06:44 PM Moon Phase ( Waxing Crescent ) |
|
| 22 December 2025 Monday | Sunny |
2.2 ° C (36°F) |
10.9 ° C (51.6°F) |
5.9 ° C (42.6°F) |
% 45 | 0% | 0.6 | Sunrise:07:34 AM Sunset: 05:22 PM |
Moonrise:09:44 AM Moonset: 07:46 PM Moon Phase ( Waxing Crescent ) |
|
| 23 December 2025 Tuesday |  Partly Cloudy |
6.1 ° C (43°F) |
16.9 ° C (62.4°F) |
10.8 ° C (51.4°F) |
% 59 | 0% | 0.6 | Sunrise:07:34 AM Sunset: 05:23 PM |
Moonrise:10:18 AM Moonset: 08:49 PM Moon Phase ( Waxing Crescent ) |
|
| 24 December 2025 Wednesday | Sunny |
10.8 ° C (51.5°F) |
20.6 ° C (69°F) |
13.3 ° C (55.9°F) |
% 82 | 0% | 0 | Sunrise:07:34 AM Sunset: 05:23 PM |
Moonrise:10:49 AM Moonset: 09:52 PM Moon Phase ( Waxing Crescent ) |
|
| 25 December 2025 Thursday |  Mist |
11.1 ° C (52°F) |
21.9 ° C (71.4°F) |
15.6 ° C (60.2°F) |
% 80 | 0% | 4 | Sunrise:07:35 AM Sunset: 05:24 PM |
Moonrise:11:16 AM Moonset: 10:54 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday | Partly Cloudy |
12.8 ° C (55.1°F) |
21.9 ° C (71.4°F) |
16.7 ° C (62°F) |
% 73 | 0% | 5 | Sunrise:07:35 AM Sunset: 05:25 PM |
Moonrise:11:42 AM Moonset: 11:58 PM Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday | Sunny |
13 ° C (55.5°F) |
22 ° C (71.5°F) |
16.6 ° C (61.8°F) |
% 79 | 0% | 5 | Sunrise:07:36 AM Sunset: 05:25 PM |
Moonrise:12:08 PM Moonset: No moonset Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday | Sunny |
12.6 ° C (54.7°F) |
21 ° C (69.8°F) |
16.2 ° C (61.1°F) |
% 77 | 0% | 5 | Sunrise:07:36 AM Sunset: 05:26 PM |
Moonrise:12:36 PM Moonset: 01:03 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 December 2025 Monday | Mist |
12.3 ° C (54.2°F) |
15.2 ° C (59.4°F) |
13.6 ° C (56.5°F) |
% 93 | 0% | 3 | Sunrise:07:36 AM Sunset: 05:27 PM |
Moonrise:01:08 PM Moonset: 02:11 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 December 2025 Tuesday | Partly Cloudy |
11.6 ° C (52.9°F) |
19.1 ° C (66.4°F) |
14.7 ° C (58.4°F) |
% 76 | 0% | 4 | Sunrise:07:36 AM Sunset: 05:27 PM |
Moonrise:01:46 PM Moonset: 03:24 AM Moon Phase ( Waxing Gibbous ) |
|
| 31 December 2025 Wednesday | Moderate rain |
9.6 ° C (49.3°F) |
17.4 ° C (63.2°F) |
14.1 ° C (57.4°F) |
% 82 | 89% | 3 | Sunrise:07:37 AM Sunset: 05:28 PM |
Moonrise:02:32 PM Moonset: 04:39 AM Moon Phase ( Waxing Gibbous ) |
|
| 01 January 2026 Thursday | Sunny |
4.7 ° C (40.4°F) |
11.9 ° C (53.4°F) |
7.6 ° C (45.7°F) |
% 63 | 0% | 3 | Sunrise:07:37 AM Sunset: 05:29 PM |
Moonrise:03:30 PM Moonset: 05:55 AM Moon Phase ( Waxing Gibbous ) |
|
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