Live Weather & Forecast

Weather in Upper Saint Clair

Pennsylvania, United States · Real-time conditions & 3-day outlook

Flag of United States
Moderate rain
11°C
Feels like 11°C
52°F / Feels 52°F
Moderate rain
Upper Saint Clair, Pennsylvania
🌞 Daytime
Updated: 2026-04-12 13:45
💧
Humidity
94%
💨
Wind
5.8 km/h WNW
🌬️
Wind Gust
6.6 km/h
🌡️
Pressure
1014 mb
👁️
Visibility
10 km
☀️
UV Index
1 (Low)
🌧️
Precipitation
0.05 mm
☁️
Cloud Cover
75%
💦
Dew Point
8.2°C
🌐
Wind Degree
284°

Air Quality Index

US EPA: Good UK DEFRA: Low (1)
CO
149.9 μg/m³
NO₂
4 μg/m³
O₃
53 μg/m³
SO₂
1 μg/m³
PM 2.5
3.9 μg/m³
PM 10
4.7 μg/m³

Today's Hourly Forecast

24-hour breakdown for Upper Saint Clair, Pennsylvania

12 AM
Mist
11°
Mist
💧 94% 💨 4 km/h
1 AM
Fog
11°
Fog
💧 97% 💨 4 km/h 🌧️ 100%
2 AM
Light rain shower
12°
Light rain shower
💧 96% 💨 5.4 km/h 🌧️ 100%
3 AM
Light rain
11°
Light rain
💧 97% 💨 6.5 km/h 🌧️ 100%
4 AM
Light rain
10°
Light rain
💧 97% 💨 7.2 km/h 🌧️ 100%
5 AM
Light drizzle
Light drizzle
💧 97% 💨 5.4 km/h 🌧️ 100%
6 AM
Mist
Mist
💧 96% 💨 5 km/h 🌧️ 100%
7 AM
Mist
Mist
💧 96% 💨 4.3 km/h 🌧️ 100%
8 AM
Mist
Mist
💧 96% 💨 4 km/h 🌧️ 64%
9 AM
Mist
Mist
💧 95% 💨 4.7 km/h 🌧️ 78%
10 AM
Mist
Mist
💧 94% 💨 5 km/h 🌧️ 73%
11 AM
Patchy rain nearby
Patchy rain nearby
💧 93% 💨 5.4 km/h 🌧️ 80%
12 PM
Patchy rain nearby
Patchy rain nearby
💧 91% 💨 5 km/h 🌧️ 80%
1 PM
Moderate rain
11°
Moderate rain
💧 94% 💨 5.8 km/h 🌧️ 100%
2 PM
Patchy rain nearby
Patchy rain nearby
💧 91% 💨 4.7 km/h 🌧️ 76%
3 PM
Patchy rain nearby
Patchy rain nearby
💧 91% 💨 4.3 km/h 🌧️ 81%
4 PM
Patchy rain nearby
Patchy rain nearby
💧 93% 💨 5 km/h 🌧️ 100%
5 PM
Light rain shower
Light rain shower
💧 94% 💨 4.3 km/h 🌧️ 100%
6 PM
Light drizzle
Light drizzle
💧 95% 💨 4.3 km/h 🌧️ 100%
7 PM
Light rain
Light rain
💧 98% 💨 4.3 km/h 🌧️ 100%
8 PM
Light rain
Light rain
💧 99% 💨 4.7 km/h 🌧️ 100%
9 PM
Light rain
Light rain
💧 99% 💨 3.6 km/h 🌧️ 100%
10 PM
Light rain
Light rain
💧 99% 💨 5 km/h 🌧️ 100%
11 PM
Light drizzle
Light drizzle
💧 99% 💨 5 km/h 🌧️ 100%

3-Day Forecast

Daily overview for Upper Saint Clair, Pennsylvania

Today
Moderate rain
Moderate rain
10° /
🌧️ 100% chance of rain
💧 Avg. humidity: 95%
💨 Max wind: 7.2 km/h
🌧️ Total precip: 12.35 mm
☀️ UV Index: 0.2
🌅 Sunrise: 06:55 AM
🌇 Sunset: 08:18 PM
🌙 Waning Crescent
🌑 Moon: 33% lit
Mon, Apr 13
Patchy rain nearby
Patchy rain nearby
/
🌧️ 92% chance of rain
💧 Avg. humidity: 98%
💨 Max wind: 5.4 km/h
🌧️ Total precip: 4.48 mm
☀️ UV Index: 0.1
🌅 Sunrise: 06:53 AM
🌇 Sunset: 08:19 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Patchy rain nearby
Patchy rain nearby
10° /
🌧️ 86% chance of rain
💧 Avg. humidity: 91%
💨 Max wind: 13 km/h
🌧️ Total precip: 0.49 mm
☀️ UV Index: 0.4
🌅 Sunrise: 06:51 AM
🌇 Sunset: 08:21 PM
🌙 Waning Crescent
🌑 Moon: 15% lit

Best Time to Visit Upper Saint Clair

Plan your trip to Upper Saint Clair, United States around the most favorable weather conditions.

Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
← Back to Upper Saint Clair 🗓 View Holidays 2026

Frequently Asked Questions

What is the current weather in Upper Saint Clair?
Current conditions in Upper Saint Clair: Moderate rain, temperature 11°C, humidity 94%.
What is the best time to visit Upper Saint Clair?
The best time to visit Upper Saint Clair is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Upper Saint Clair?
Upper Saint Clair is located at approximately 45.9° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Upper Saint Clair?
The wettest period in Upper Saint Clair is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Upper Saint Clair?
For visits to Upper Saint Clair during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Upper Saint Clair in?
Upper Saint Clair is located in United States, in the state of Pennsylvania.
What are the public holidays in Upper Saint Clair in 2026?
View the 2026 public holidays for Upper Saint Clair on our Holidays page.
What are the GPS coordinates used for the weather forecast in Upper Saint Clair?
The weather forecast for Upper Saint Clair uses coordinates 45.91, 6.2036.