St. George Weather Forecast 15 Days, Weather in St. George Today
Current weather conditions and 15 day weather forecast for St. George, Utah, 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. George
| 15 December 2025 Monday 18.3 ° C / 64.9°F  Sunny |
Feels Like : 18.3 ° C / 64.9°F Humidity : % 20 Pressure : 1025 mb Wind Speed : 3.6 kmph / 2.2 miles from NNW  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for St. George, UT, USA
Weather Forecast for next 15 Days for St. George 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. George, Utah 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 | Sunny |
4.1 ° C (39.4°F) |
21.4 ° C (70.5°F) |
10.6 ° C (51.1°F) |
% 34 | 0% | 0.5 | Sunrise:07:41 AM Sunset: 05:19 PM |
Moonrise:03:48 AM Moonset: 02:16 PM Moon Phase ( Waning Crescent ) |
|
| 16 December 2025 Tuesday | Sunny |
2.4 ° C (36.3°F) |
19.9 ° C (67.8°F) |
9.9 ° C (49.8°F) |
% 40 | 0% | 0.5 | Sunrise:07:42 AM Sunset: 05:19 PM |
Moonrise:04:48 AM Moonset: 02:45 PM Moon Phase ( Waning Crescent ) |
|
| 17 December 2025 Wednesday | Sunny |
2.1 ° C (35.8°F) |
21.9 ° C (71.4°F) |
9.6 ° C (49.2°F) |
% 45 | 0% | 0.5 | Sunrise:07:42 AM Sunset: 05:20 PM |
Moonrise:05:49 AM Moonset: 03:21 PM Moon Phase ( Waning Crescent ) |
|
| 18 December 2025 Thursday | Sunny |
5.6 ° C (42.1°F) |
17.2 ° C (63°F) |
11.4 ° C (52.5°F) |
% 34 | 0% | 0.5 | Sunrise:07:43 AM Sunset: 05:20 PM |
Moonrise:06:48 AM Moonset: 04:02 PM Moon Phase ( Waning Crescent ) |
|
| 19 December 2025 Friday | Sunny |
9.5 ° C (49.1°F) |
17.9 ° C (64.2°F) |
11.7 ° C (53.1°F) |
% 36 | 0% | 0 | Sunrise:07:44 AM Sunset: 05:20 PM |
Moonrise:07:45 AM Moonset: 04:51 PM Moon Phase ( New Moon ) |
|
| 20 December 2025 Saturday | Sunny |
4.7 ° C (40.5°F) |
16.9 ° C (62.3°F) |
8.7 ° C (47.6°F) |
% 42 | 0% | 3 | Sunrise:07:44 AM Sunset: 05:21 PM |
Moonrise:08:36 AM Moonset: 05:47 PM Moon Phase ( New Moon ) |
|
| 21 December 2025 Sunday | Sunny |
3.1 ° C (37.6°F) |
16.5 ° C (61.7°F) |
8.9 ° C (47.9°F) |
% 47 | 0% | 3 | Sunrise:07:45 AM Sunset: 05:21 PM |
Moonrise:09:21 AM Moonset: 06:48 PM Moon Phase ( Waxing Crescent ) |
|
| 22 December 2025 Monday |  Partly Cloudy |
6.7 ° C (44°F) |
16.4 ° C (61.5°F) |
11.2 ° C (52.2°F) |
% 46 | 0% | 4 | Sunrise:07:45 AM Sunset: 05:22 PM |
Moonrise:09:59 AM Moonset: 07:51 PM Moon Phase ( Waxing Crescent ) |
|
| 23 December 2025 Tuesday | Sunny |
4.3 ° C (39.7°F) |
16.9 ° C (62.3°F) |
9.4 ° C (48.9°F) |
% 53 | 0% | 3 | Sunrise:07:46 AM Sunset: 05:22 PM |
Moonrise:10:32 AM Moonset: 08:56 PM Moon Phase ( Waxing Crescent ) |
|
| 24 December 2025 Wednesday | Partly Cloudy |
5.3 ° C (41.6°F) |
17.6 ° C (63.7°F) |
11.3 ° C (52.4°F) |
% 44 | 0% | 4 | Sunrise:07:46 AM Sunset: 05:23 PM |
Moonrise:11:00 AM Moonset: 10:00 PM Moon Phase ( Waxing Crescent ) |
|
| 25 December 2025 Thursday | Sunny |
7.7 ° C (45.9°F) |
18.1 ° C (64.6°F) |
12 ° C (53.7°F) |
% 44 | 0% | 4 | Sunrise:07:46 AM Sunset: 05:24 PM |
Moonrise:11:26 AM Moonset: 11:04 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday | Sunny |
8.3 ° C (47°F) |
15.8 ° C (60.5°F) |
11.9 ° C (53.5°F) |
% 40 | 0% | 4 | Sunrise:07:47 AM Sunset: 05:24 PM |
Moonrise:11:51 AM Moonset: No moonset Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday | Partly Cloudy |
8.1 ° C (46.6°F) |
16.1 ° C (60.9°F) |
11 ° C (51.8°F) |
% 34 | 0% | 4 | Sunrise:07:47 AM Sunset: 05:25 PM |
Moonrise:12:15 PM Moonset: 12:09 AM Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday | Sunny |
7.3 ° C (45.1°F) |
17.5 ° C (63.5°F) |
10.7 ° C (51.3°F) |
% 31 | 0% | 4 | Sunrise:07:47 AM Sunset: 05:26 PM |
Moonrise:12:42 PM Moonset: 01:16 AM Moon Phase ( Waxing Gibbous ) |
|
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