Weather forecast for 10 daysUpper Saint Clair, PA
Weather forecast for the weekend
Sunday Oct 18, 2026
- 61°F
- 34°F
Sunny
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 3mphESE 113°
- Humidity: 56%
- UV index: 4
- Sunrise: 7:34 am EDT
- Sunset: 6:36 pm EDT
- details ▼
Tomorrow, on Sunday, October 18, bright and sunny weather is expected.
Temperature readings will span from a daytime high of an enjoyable 60.8°F to a night low of a wintry 33.8°F.
Sunrise will be at 7:34 am and sunset at 6:36 pm; tomorrow's daylight will last for 11h and 2min.
Temperature readings will span from a daytime high of an enjoyable 60.8°F to a night low of a wintry 33.8°F.
Sunrise will be at 7:34 am and sunset at 6:36 pm; tomorrow's daylight will last for 11h and 2min.
10-day overview
Daily temperatures
Maximum temperature: 68°C.
Coldest day: tomorrow 61°C.
Coldest day: tomorrow 61°C.
Chance of precipitation
Highest chance: 10%.
Long-term weather forecast
- Saturday
- Oct 17, 2026
- min.
- 30°F
Clear
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 5mphN 8°
- Humidity: 77%
- UV index: 0
- Sunrise: 7:33 am EDT
- Sunset: 6:37 pm EDT
- details ▼
- Sunday
- Oct 18, 2026
- 61°F
- 34°F
Sunny
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 3mphESE 113°
- Humidity: 56%
- UV index: 4
- Sunrise: 7:34 am EDT
- Sunset: 6:36 pm EDT
- details ▼
- Monday
- Oct 19, 2026
- 68°F
- 37°F
Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 4mphNE 44°
- Humidity: 53%
- UV index: 4
- Sunrise: 7:35 am EDT
- Sunset: 6:34 pm EDT
- details ▼
- Tuesday
- Oct 20, 2026
- 66°F
- 37°F
Mostly Sunny
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 6mphN 9°
- Humidity: 63%
- UV index: 4
- Sunrise: 7:36 am EDT
- Sunset: 6:33 pm EDT
- details ▼
- Wednesday
- Oct 21, 2026
- 66°F
- 36°F
Sunny
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 5mphNNE 30°
- Humidity: 59%
- UV index: 4
- Sunrise: 7:37 am EDT
- Sunset: 6:31 pm EDT
- details ▼
- Thursday
- Oct 22, 2026
- 66°F
- 39°F
Sunny
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 7mphN 356°
- Humidity: 60%
- UV index: 4
- Sunrise: 7:38 am EDT
- Sunset: 6:30 pm EDT
- details ▼
- Friday
- Oct 23, 2026
- 64°F
- 37°F
Sunny
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 7mphNE 36°
- Humidity: 64%
- UV index: 4
- Sunrise: 7:40 am EDT
- Sunset: 6:29 pm EDT
- details ▼
- Saturday
- Oct 24, 2026
- 64°F
- 37°F
Mostly Sunny
- Precip. probability: 10%
- Precipitation: 0"
- Wind: 6mphE 80°
- Humidity: 57%
- UV index: 4
- Sunrise: 7:41 am EDT
- Sunset: 6:27 pm EDT
- details ▼
- Sunday
- Oct 25, 2026
- 64°F
- 39°F
Mostly Sunny
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 6mphNE 45°
- Humidity: 62%
- UV index: 4
- Sunrise: 7:42 am EDT
- Sunset: 6:26 pm EDT
- details ▼
- Monday
- Oct 26, 2026
- 68°F
- 43°F
Partly Cloudy
- Precip. probability: 10%
- Precipitation: 0"
- Wind: 7mphNW 322°
- Humidity: 62%
- UV index: 4
- Sunrise: 7:43 am EDT
- Sunset: 6:25 pm EDT
- details ▼
For the coming ten days, primarily sunny and occasionally cloud-filled weather is predicted.
Rain is not forecasted in Upper Saint Clair in the upcoming period.
In the coming days, the highest temperature will vary between 60.8°F and 68°F, while the lowest night temperatures will vary significantly, as the overnight lows will vary from 30.2°F to 42.8°F.
With a maximum temperature of 68°F, Monday and next Monday will be the warmest days; with the highest temperature of 60.8°F, Sunday will be the coldest day.
Rain is not forecasted in Upper Saint Clair in the upcoming period.
In the coming days, the highest temperature will vary between 60.8°F and 68°F, while the lowest night temperatures will vary significantly, as the overnight lows will vary from 30.2°F to 42.8°F.
With a maximum temperature of 68°F, Monday and next Monday will be the warmest days; with the highest temperature of 60.8°F, Sunday will be the coldest day.
Updated: Oct 17, 2026 @ 22:59:04 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
Tomorrow, sun-filled conditions are expected to persist.
Tomorrow, the maximum temperature will be 60.8°F, while the minimum temperature will be 33.8°F.
On Sunday, in Upper Saint Clair, sunrise will be at 7:34 am and sunset at 6:36 pm (EDT).
In Upper Saint Clair, tomorrow, there will be 11h and 2min of daylight.
