Upper St. Clair (Township) Weather Forecast 15 Days, Weather in Upper St. Clair (Township) Today
Current weather conditions and 15 day weather forecast for Upper St. Clair (Township), Pennsylvania, 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 Upper St. Clair (Township)
| 20 December 2025 Saturday 6.7 ° C / 44.1°F  Clear |
Feels Like : 4 ° C / 39.2°F Humidity : % 33 Pressure : 1012 mb Wind Speed : 14 kmph / 8.7 miles from S  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for Upper St. Clair (Township), PA, USA
Weather Forecast for next 15 Days for Upper St. Clair (Township) 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 Upper St. Clair (Township), Pennsylvania 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 December 2025 Saturday | Sunny |
-8.6 ° C (16.5°F) |
10.4 ° C (50.7°F) |
-0.2 ° C (31.6°F) |
% 64 | 0% | 0.2 | Sunrise:07:40 AM Sunset: 04:57 PM |
Moonrise:08:31 AM Moonset: 05:15 PM Moon Phase ( New Moon ) |
|
| 21 December 2025 Sunday |  Cloudy |
-5.1 ° C (22.8°F) |
2.1 ° C (35.8°F) |
0.7 ° C (33.2°F) |
% 67 | 0% | 0.3 | Sunrise:07:40 AM Sunset: 04:57 PM |
Moonrise:09:15 AM Moonset: 06:16 PM Moon Phase ( Waxing Crescent ) |
|
| 22 December 2025 Monday |  Overcast |
-7.1 ° C (19.2°F) |
-0.8 ° C (30.6°F) |
-3.8 ° C (25.2°F) |
% 65 | 0% | 0.2 | Sunrise:07:41 AM Sunset: 04:58 PM |
Moonrise:09:52 AM Moonset: 07:22 PM Moon Phase ( Waxing Crescent ) |
|
| 23 December 2025 Tuesday |  Patchy rain nearby |
-1.1 ° C (30.1°F) |
4.3 ° C (39.8°F) |
2.8 ° C (37°F) |
% 86 | 89% | 0 | Sunrise:07:41 AM Sunset: 04:59 PM |
Moonrise:10:23 AM Moonset: 08:28 PM Moon Phase ( Waxing Crescent ) |
|
| 24 December 2025 Wednesday | Overcast |
1.6 ° C (34.9°F) |
5.3 ° C (41.5°F) |
3.4 ° C (38°F) |
% 83 | 0% | 0 | Sunrise:07:42 AM Sunset: 04:59 PM |
Moonrise:10:49 AM Moonset: 09:35 PM Moon Phase ( Waxing Crescent ) |
|
| 25 December 2025 Thursday | Patchy rain nearby |
5.1 ° C (41.3°F) |
13.4 ° C (56.1°F) |
11 ° C (51.8°F) |
% 95 | 88% | 3 | Sunrise:07:42 AM Sunset: 05:00 PM |
Moonrise:11:13 AM Moonset: 10:41 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday | Patchy rain nearby |
5.5 ° C (41.9°F) |
15.5 ° C (59.8°F) |
12.1 ° C (53.7°F) |
% 78 | 85% | 3 | Sunrise:07:42 AM Sunset: 05:00 PM |
Moonrise:11:35 AM Moonset: 11:49 PM Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday |  Mist |
3.7 ° C (38.7°F) |
12.3 ° C (54.1°F) |
7.2 ° C (45°F) |
% 84 | 0% | 2 | Sunrise:07:43 AM Sunset: 05:01 PM |
Moonrise:11:57 AM Moonset: No moonset Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday |  Partly Cloudy |
4.1 ° C (39.4°F) |
9.1 ° C (48.3°F) |
6.1 ° C (42.9°F) |
% 77 | 0% | 3 | Sunrise:07:43 AM Sunset: 05:02 PM |
Moonrise:12:21 PM Moonset: 12:59 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 December 2025 Monday | Patchy rain nearby |
1.5 ° C (34.6°F) |
5.2 ° C (41.4°F) |
3.9 ° C (38.9°F) |
% 88 | 88% | 1 | Sunrise:07:43 AM Sunset: 05:03 PM |
Moonrise:12:49 PM Moonset: 02:11 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 December 2025 Tuesday |  Patchy moderate snow |
-3.7 ° C (25.3°F) |
3.3 ° C (38°F) |
0.5 ° C (32.9°F) |
% 86 | 71% | 1 | Sunrise:07:43 AM Sunset: 05:03 PM |
Moonrise:01:22 PM Moonset: 03:29 AM Moon Phase ( Waxing Gibbous ) |
|
| 31 December 2025 Wednesday | Sunny |
-5.7 ° C (21.7°F) |
3.1 ° C (37.5°F) |
-2.1 ° C (28.2°F) |
% 61 | 0% | 2 | Sunrise:07:44 AM Sunset: 05:04 PM |
Moonrise:02:05 PM Moonset: 04:48 AM Moon Phase ( Waxing Gibbous ) |
|
| 01 January 2026 Thursday | Partly Cloudy |
-3.4 ° C (25.9°F) |
4.4 ° C (39.9°F) |
-0.1 ° C (31.8°F) |
% 59 | 0% | 2 | Sunrise:07:44 AM Sunset: 05:05 PM |
Moonrise:02:59 PM Moonset: 06:06 AM Moon Phase ( Waxing Gibbous ) |
|
| 02 January 2026 Friday |  Freezing fog |
-1.1 ° C (30°F) |
5.5 ° C (41.9°F) |
2.3 ° C (36.1°F) |
% 90 | 0% | 1 | Sunrise:07:44 AM Sunset: 05:06 PM |
Moonrise:04:06 PM Moonset: 07:17 AM Moon Phase ( Waxing Gibbous ) |
|
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