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Weather in Allegheny County for October 2025

Your guide to Allegheny County weather in October - trends and predictions
  • In general, the average temperature in Allegheny County at the beginning of October is 22.7 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 17.9 °F by the end of October.

  • The climate of Allegheny County in October is notably wet, with an average of 15 rainy days.

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Average dry days
16
Dry days
Average rainy days
15
Rainy days
Average snowy days
0
Snow days
Average temperatures
18°/9°
Temperatures
Average wind speed
13 km/h
Avg max wind
Average humidity
72 %
Avg humidity

Allegheny County in October average weather

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Temperatures trend during October in Allegheny County

See the weather trend as well as the moving average line

October weather day by day

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Date Weather Temperatures Rain UV More
Oct. 1 Mist
Mist
22° /13° 9.7 mm 5
Oct. 2 Mist
Mist
23° /14° 0 mm 5
Oct. 3 Fog
Fog
25° /12° 0 mm 6
Oct. 4 Mist
Mist
25° /13° 0 mm 6
Oct. 5 Overcast
Overcast
26° /13° 0 mm 6
Oct. 6 Light rain shower
Light rain shower
22° /11° 10.2 mm 5
Oct. 7 Patchy light drizzle
Patchy light drizzle
16° /9° 9.7 mm 4
Oct. 8 Light rain shower
Light rain shower
16° /5° 0.3 mm 4
Oct. 9 Light drizzle
Light drizzle
16° /8° 0.3 mm 4
Oct. 10 Cloudy
Cloudy
15° /6° 0 mm 5
Oct. 11 Sunny
Sunny
20° /3° 0 mm 5
Oct. 12 Patchy rain possible
Patchy rain possible
19° /10° 1.5 mm 5
Oct. 13 Overcast
Overcast
22° /11° 2.2 mm 5
Oct. 14 Light rain shower
Light rain shower
13° /7° 14.5 mm 4
Oct. 15 Patchy rain possible
Patchy rain possible
11° /6° 2.5 mm 3
Oct. 16 Light rain shower
Light rain shower
10° /6° 1 mm 3
Oct. 17 Patchy rain possible
Patchy rain possible
13° /7° 0 mm 3
Oct. 18 Overcast
Overcast
18° /4° 0 mm 4
Oct. 19 Light rain shower
Light rain shower
21° /3° 0.2 mm 5
Oct. 20 Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
19° /8° 10.5 mm 5
Oct. 21 Light rain
Light rain
18° /8° 2.3 mm 5
Oct. 22 Patchy rain possible
Patchy rain possible
19° /6° 0.3 mm 5
Oct. 23 Cloudy
Cloudy
19° /7° 0 mm 5
Oct. 24 Partly cloudy
Partly cloudy
18° /6° 0 mm 5
Oct. 25 Overcast
Overcast
20° /5° 0.7 mm 5
Oct. 26 Overcast
Overcast
19° /10° 0.6 mm 5
Oct. 27 Overcast
Overcast
19° /8° 0 mm 5
Oct. 28 Patchy rain possible
Patchy rain possible
17° /6° 0.2 mm 5
Oct. 29 Light rain shower
Light rain shower
18° /10° 25.9 mm 4
Oct. 30 Light rain shower
Light rain shower
16° /7° 10.7 mm 5
Oct. 31 Fog
Fog
16° /7° 1 mm 4
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Important Notice
Our weather forecast for Allegheny County in October is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Allegheny County forecast closer to your planned date for the most up-to-date weather information.

Allegheny County in October - FAQ

What are the expected maximum and minimum temperatures in Allegheny County during October?
Enjoy moderate daytime temperatures of up to 18° and cooler nights around 9°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Allegheny County during October?
Significant rainfall exceeding 149.7 mm is expected in Allegheny County during October, occurring over more than 15 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Allegheny County during October?
The average wind speed in Allegheny County during October is 13 km/h, suggesting breezy to windy conditions, depending on your activities.

October rainfall patterns in Allegheny County

Explore the daily rainfall trends and prepare for Allegheny Countys October weather 💧

UV exposure in Allegheny County during October

Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️
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Location coordinates 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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