Upper St. Clair Weather Forecast 15 Days, Weather in Upper St. Clair Today
Current weather conditions and 15 day weather forecast for Upper St. Clair, 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
| 04 August 2026 Tuesday 30 ° C / 86°F  Sunny |
Feels Like : 29.9 ° C / 85.8°F Humidity : % 41 Pressure : 1016 mb Wind Speed : 3.6 kmph / 2.2 miles from NE  Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for Upper St. Clair, PA, USA
Weather Forecast for next 15 Days for Upper St. Clair 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, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 04 August 2026 Tuesday | Sunny |
14 ° C (57.2°F) |
32.6 ° C (90.7°F) |
23.2 ° C (73.7°F) |
% 66 | 4% | 6.9 | Sunrise:06:20 AM Sunset: 08:31 PM |
Moonrise:11:12 PM Moonset: 12:29 PM Moon Phase ( Last Quarter ) |
|
| 05 August 2026 Wednesday | Sunny |
20.7 ° C (69.3°F) |
31.4 ° C (88.5°F) |
24.7 ° C (76.5°F) |
% 71 | 60% | 9.1 | Sunrise:06:21 AM Sunset: 08:30 PM |
Moonrise:11:40 PM Moonset: 01:36 PM Moon Phase ( Last Quarter ) |
|
| 06 August 2026 Thursday |  Patchy rain nearby |
19.2 ° C (66.6°F) |
31.1 ° C (87.9°F) |
24 ° C (75.2°F) |
% 81 | 74% | 8.9 | Sunrise:06:22 AM Sunset: 08:29 PM |
Moonrise:Does not rise today Moonset: 02:46 PM Moon Phase ( Last Quarter ) |
|
| 07 August 2026 Friday | Patchy rain nearby |
19.4 ° C (66.9°F) |
28.2 ° C (82.7°F) |
23 ° C (73.5°F) |
% 86 | 85% | 6 | Sunrise:06:23 AM Sunset: 08:28 PM |
Moonrise:12:15 AM Moonset: 03:58 PM Moon Phase ( Waning Crescent ) |
|
| 08 August 2026 Saturday |  Light rain shower |
19 ° C (66.2°F) |
28.9 ° C (84.1°F) |
22.9 ° C (73.3°F) |
% 87 | 86% | 6 | Sunrise:06:24 AM Sunset: 08:27 PM |
Moonrise:01:00 AM Moonset: 05:08 PM Moon Phase ( Waning Crescent ) |
|
| 09 August 2026 Sunday |  Fog |
19.5 ° C (67°F) |
29.3 ° C (84.7°F) |
23.5 ° C (74.4°F) |
% 86 | 82% | 7 | Sunrise:06:25 AM Sunset: 08:26 PM |
Moonrise:01:57 AM Moonset: 06:11 PM Moon Phase ( Waning Crescent ) |
|
| 10 August 2026 Monday |  Moderate or heavy rain shower |
20.3 ° C (68.6°F) |
30.8 ° C (87.5°F) |
23.7 ° C (74.7°F) |
% 88 | 83% | 7 | Sunrise:06:26 AM Sunset: 08:24 PM |
Moonrise:03:07 AM Moonset: 07:04 PM Moon Phase ( New Moon ) |
|
| 11 August 2026 Tuesday | Sunny |
20.9 ° C (69.6°F) |
25.9 ° C (78.6°F) |
23.3 ° C (74°F) |
% 89 | 85% | 6 | Sunrise:06:27 AM Sunset: 08:23 PM |
Moonrise:04:26 AM Moonset: 07:47 PM Moon Phase ( New Moon ) |
|
| 12 August 2026 Wednesday | Sunny |
15.9 ° C (60.6°F) |
26.4 ° C (79.5°F) |
21.2 ° C (70.2°F) |
% 79 | 71% | 7 | Sunrise:06:28 AM Sunset: 08:22 PM |
Moonrise:05:48 AM Moonset: 08:21 PM Moon Phase ( New Moon ) |
|
| 13 August 2026 Thursday | Sunny |
15.7 ° C (60.3°F) |
23.8 ° C (74.8°F) |
18.9 ° C (65.9°F) |
% 70 | 7% | 6 | Sunrise:06:29 AM Sunset: 08:20 PM |
Moonrise:07:10 AM Moonset: 08:50 PM Moon Phase ( New Moon ) |
|
| 14 August 2026 Friday |  Partly Cloudy |
13.4 ° C (56.1°F) |
23.8 ° C (74.9°F) |
17.8 ° C (64.1°F) |
% 68 | 17% | 6 | Sunrise:06:30 AM Sunset: 08:19 PM |
Moonrise:08:28 AM Moonset: 09:16 PM Moon Phase ( Waxing Crescent ) |
|
| 15 August 2026 Saturday | Sunny |
12.2 ° C (54°F) |
25 ° C (76.9°F) |
18 ° C (64.3°F) |
% 65 | 4% | 6 | Sunrise:06:31 AM Sunset: 08:18 PM |
Moonrise:09:43 AM Moonset: 09:41 PM Moon Phase ( Waxing Crescent ) |
|
| 16 August 2026 Sunday | Sunny |
12.3 ° C (54.2°F) |
25.7 ° C (78.2°F) |
18.4 ° C (65.2°F) |
% 71 | 7% | 7 | Sunrise:06:32 AM Sunset: 08:16 PM |
Moonrise:10:57 AM Moonset: 10:06 PM Moon Phase ( Waxing Crescent ) |
|
| 17 August 2026 Monday | Sunny |
12.8 ° C (55.1°F) |
24.6 ° C (76.3°F) |
18.2 ° C (64.7°F) |
% 68 | 5% | 6 | Sunrise:06:33 AM Sunset: 08:15 PM |
Moonrise:12:09 PM Moonset: 10:33 PM Moon Phase ( Waxing Crescent ) |
|
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