Allegheny County (Pittsburgh)
October
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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16
Dry days
15
Rainy days
0
Snow days
18°/9°
Temperatures
13 km/h
Avg max wind
72 %
Avg humidity
Allegheny County in October average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  22° | 2 23° | 3 25° | 4 25° | 5  26° | ||
| 6  22° | 7  16° | 8 16° | 9 16° | 10  15° | 11  20° | 12 19° |
| 13 22° | 14 13° | 15 11° | 16 10° | 17 13° | 18 18° | 19 21° |
| 20  19° | 21 18° | 22 19° | 23 19° | 24  18° | 25 20° | 26 19° |
| 27 19° | 28 17° | 29 18° | 30 16° | 31 16° |
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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 | 22° /13° | 9.7 mm | 5 | |
| Oct. 2 | Mist | 23° /14° | 0 mm | 5 | |
| Oct. 3 | Fog | 25° /12° | 0 mm | 6 | |
| Oct. 4 | Mist | 25° /13° | 0 mm | 6 | |
| Oct. 5 | Overcast | 26° /13° | 0 mm | 6 | |
| Oct. 6 | Light rain shower | 22° /11° | 10.2 mm | 5 | |
| Oct. 7 | Patchy light drizzle | 16° /9° | 9.7 mm | 4 | |
| Oct. 8 | Light rain shower | 16° /5° | 0.3 mm | 4 | |
| Oct. 9 | Light drizzle | 16° /8° | 0.3 mm | 4 | |
| Oct. 10 | Cloudy | 15° /6° | 0 mm | 5 | |
| Oct. 11 | Sunny | 20° /3° | 0 mm | 5 | |
| Oct. 12 | Patchy rain possible | 19° /10° | 1.5 mm | 5 | |
| Oct. 13 | Overcast | 22° /11° | 2.2 mm | 5 | |
| Oct. 14 | Light rain shower | 13° /7° | 14.5 mm | 4 | |
| Oct. 15 | Patchy rain possible | 11° /6° | 2.5 mm | 3 | |
| Oct. 16 | Light rain shower | 10° /6° | 1 mm | 3 | |
| Oct. 17 | Patchy rain possible | 13° /7° | 0 mm | 3 | |
| Oct. 18 | Overcast | 18° /4° | 0 mm | 4 | |
| Oct. 19 | Light rain shower | 21° /3° | 0.2 mm | 5 | |
| Oct. 20 | Moderate or heavy rain with thunder | 19° /8° | 10.5 mm | 5 | |
| Oct. 21 | Light rain | 18° /8° | 2.3 mm | 5 | |
| Oct. 22 | Patchy rain possible | 19° /6° | 0.3 mm | 5 | |
| Oct. 23 | Cloudy | 19° /7° | 0 mm | 5 | |
| Oct. 24 | Partly cloudy | 18° /6° | 0 mm | 5 | |
| Oct. 25 | Overcast | 20° /5° | 0.7 mm | 5 | |
| Oct. 26 | Overcast | 19° /10° | 0.6 mm | 5 | |
| Oct. 27 | Overcast | 19° /8° | 0 mm | 5 | |
| Oct. 28 | Patchy rain possible | 17° /6° | 0.2 mm | 5 | |
| Oct. 29 | Light rain shower | 18° /10° | 25.9 mm | 4 | |
| Oct. 30 | Light rain shower | 16° /7° | 10.7 mm | 5 | |
| Oct. 31 | 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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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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