Allegheny County (Pittsburgh)
10 day weather forecast for Allegheny County
Wednesday, September 16th, 2026, at 07:01 PM
today
28° 19°
tomorrow
26° 21°
Friday
24° 18°
Saturday
23° 16°
Sunday
22° 18°
Monday
28° 13°
Tuesday
25° 19°
Seemore
Allegheny County Weather Pages
Allegheny County weather forecast
The weather forecast for Allegheny County over the next 4 days indicates warm conditions with temperatures ranging from 23 °F to 28 °F.
Rain is expected today and will continue at least through Sunday, accompanied by a gentle breeze.
On Sunday, expect a change in weather with temperatures reaching 22°C, and heavy rain with a 93% probability, accumulating nearly 19.16mm.
Allegheny County 14 days weather forecast
This weeks weather in Allegheny County. Click on a date for detailed forecasts
Wed. 16
28°
19°
7.4 mm
Thu. 17
26°
21°
9 mm
Fri. 18
24°
18°
0.1 mm
Sat. 19
23°
16°
2.3 mm
Sun. 20
22°
18°
19.2 mm
Mon. 21
28°
13°
7.2 mm
Tue. 22
25°
19°
21.7 mm
Wed. 23
24°
18°
2 mm
Thu. 24
25°
13°
1.7 mm
Fri. 25
15°
11°
2.8 mm
Sat. 26
21°
12°
0 mm
Sun. 27
24°
15°
0 mm
Mon. 28
25°
17°
0 mm
Tue. 29
26°
18°
0 mm
Further Ahead
You can click on date
Access Allegheny County weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
Allegheny County long range weather forecast
30 day weather forecast for Allegheny County
Important Notice
Our Allegheny County long range weather forecast is based on historical data analysis rather than real-time forecasting models. While this provides a general outlook, weather conditions can change. We recommend checking the forecast closer to your planned date for the most current information.
Rain Forecast for the Next 14 Days in Allegheny County
The chart displays the expected rainfall values (in mm) over the next 14 days in Allegheny County, highlighting variations in precipitation levels for specific dates. ☔
Allegheny County Wind Speed Forecast Chart
This chart illustrates the projected daily max wind speed (in km) in Allegheny County over the next two weeks, providing insights into periods of increased or decreased wind activity. 🌀
Frequently asked questions about the weather in Allegheny County
How warm is it in Allegheny County over the next 14 days?
Over the next two weeks, temperatures in Allegheny County are expected to range from around 11 °F on the coldest nights up to about 28 °F on the warmest days. Use this range to plan what to pack and wear.
Will it rain in Allegheny County in the next two weeks?
Yes - rain is expected on about 10 of the next 14 days in Allegheny County, with roughly 73.4 mm of rainfall in total. It is worth keeping an umbrella or raincoat handy.
How windy is it in Allegheny County?
Maximum wind speeds in Allegheny County are forecast to reach about 18 km/h at their peak over the next 14 days.
When is the best time to visit Allegheny County?
For a month-by-month look at temperatures and rainfall, see our best time to visit Allegheny County guide.
How accurate is the 14-day forecast for Allegheny County?
Our Allegheny County forecast uses leading meteorological models and is most reliable over the next few days. Long-range days beyond a week show general trends and can change, so check back closer to the date for updates.
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Where is Allegheny County?Get accurate weather forecasts for Allegheny County, located at latitude 40.441 and longitude -79.996. Stay updated with localized weather information tailored for Allegheny County.
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