Access Allegheny County weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.

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Allegheny County long range weather forecast

30 day weather forecast for Allegheny County

July

September

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 13 °F on the coldest nights up to about 33 °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 9 of the next 14 days in Allegheny County, with roughly 120.8 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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Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
						1 28°
2 28°	3 29°	4 33°	5 32°	6 31°	7 29°	8 29°
9 29°	10 31°	11 26°	12 26°	13 24°	14 24°	15 26°
16 26°	17 25°	18 25°	19 25°	20 26°	21 28°	22 26°
23 27°	24 29°	25 28°	26 26°	27 28°	28 29°	29 27°
30 26°	31 27°