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United States weather

Weather in Allentown, Pennsylvania for October 2025

Your guide to Allentown weather in October - trends and predictions

    Temperatures

  • Until now, October 2025 in Allentown has been nearly identical to the historical average, with a temperature of 18.8 °F (showing only a slight deviation of -0.3 °F).

  • Expect cooler weather in the next days in Allentown with the forecast suggesting a temperature of 17.1 °F, lower than the historical average.

  • In general, the average temperature in Allentown at the beginning of October is 21.6 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 18.4 °F by the end of October.

    • Rain 🌧️

  • With an average of 2 rainy days, Allentown experiences minimal rainfall in October.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
29
Dry days
Average rainy days
2
Rainy days
Average snowy days
0
Snow days
Average temperatures
18°/7°
Temperatures
Average wind speed
16 km/h
Avg max wind
Average humidity
68 %
Avg humidity

Allentown Weather October

Move between months or click on a day
September
November
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Overcast
19°
2
Overcast
19°
3
Cloudy
20°
4
Patchy rain possible
24°
5
Partly cloudy
24°
6
Partly cloudy
23°
7
Overcast
22°
8
Sunny
19°
9
Sunny
17°
10
Partly cloudy
15°
11
Sunny
17°
12
Overcast
18°
13
Overcast
18°
14
Overcast
17°
15
Patchy rain possible
14°
16
Partly cloudy
13°
17
Sunny
19°
18
Partly cloudy
16°
19
Partly cloudy
22°
20
Patchy rain possible
16°
21
Partly cloudy
20°
22
Partly cloudy
13°
23
Partly cloudy
14°
24
Sunny
13°
25
Sunny
18°
26
Sunny
17°
27
Partly cloudy
20°
28
Partly cloudy
22°
29
Moderate rain
17°
30
Patchy rain possible
12°
31
Mist
23°

Temperatures trend during October in Allentown

See the weather trend as well as the moving average line

October weather in Allentown day by day

Click on a date for more information
September November
Date Weather Temperatures Rain UV More
Oct. 1 Overcast
Overcast
 19° /11° 0 mm 5
Oct. 2 Overcast
Overcast
 19° /10° 0.2 mm 5
Oct. 3 Cloudy
Cloudy
 20° /10° 0.1 mm 5
Oct. 4 Patchy rain possible
Patchy rain possible
 24° /10° 0.5 mm 6
Oct. 5 Partly cloudy
Partly cloudy
 24° /11° 0.1 mm 6
Oct. 6 Partly cloudy
Partly cloudy
 23° /9° 0 mm 6
Oct. 7 Overcast
Overcast
 22° /13° 1.4 mm 5
Oct. 8 Sunny
Sunny
 19° /8° 46.5 mm 5
Oct. 9 Sunny
Sunny
 17° /6° 0 mm 5
Oct. 10 Partly cloudy
Partly cloudy
 15° /3° 0 mm 5
Oct. 11 Sunny
Sunny
 17° /7° 1.9 mm 5
Oct. 12 Overcast
Overcast
 18° /10° 8.1 mm 5
Oct. 13 Overcast
Overcast
 18° /11° 5.7 mm 4
Oct. 14 Overcast
Overcast
 17° /9° 0.1 mm 4
Oct. 15 Patchy rain possible
Patchy rain possible
 14° /6° 0.1 mm 4
Oct. 16 Partly cloudy
Partly cloudy
 13° /3° 0 mm 4
Oct. 17 Sunny
Sunny
 19° /3° 0 mm 0.8
Oct. 18 Partly cloudy
Partly cloudy
 16° /6° 0 mm 0.8
Oct. 19 Partly cloudy
Partly cloudy
 22° /8° 0 mm 0.7
Oct. 20 Patchy rain possible
Patchy rain possible
 16° /8° 0.2 mm 0.5
Oct. 21 Partly cloudy
Partly cloudy
 20° /5° 0.1 mm 0
Oct. 22 Partly cloudy
Partly cloudy
 13° /5° 0 mm 3
Oct. 23 Partly cloudy
Partly cloudy
 14° /4° 0 mm 3
Oct. 24 Sunny
Sunny
 13° /4° 0 mm 3
Oct. 25 Sunny
Sunny
 18° /4° 0 mm 3
Oct. 26 Sunny
Sunny
 17° /5° 0 mm 3
Oct. 27 Partly cloudy
Partly cloudy
 20° /7° 0 mm 4
Oct. 28 Partly cloudy
Partly cloudy
 22° /12° 0 mm 5
Oct. 29 Moderate rain
Moderate rain
 17° /13° 7.4 mm 4
Oct. 30 Patchy rain possible
Patchy rain possible
 12° /8° 0.2 mm 2
Oct. 31 Mist
Mist
 23° /8° 0 mm 5
Next
Important Notice
Our weather forecast for Allentown 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 Allentown forecast closer to your planned date for the most up-to-date weather information.
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Allentown in October - FAQ

What are the expected maximum and minimum temperatures in Allentown during October?
Enjoy moderate daytime temperatures of up to 18° and cooler nights around 7°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Allentown during October?
Rainfall in Allentown during October is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 2 days seeing any precipitation. Planning without the concern for rain is generally straightforward during this very dry period.
What are the typical wind conditions in Allentown during October?
The average wind speed in Allentown during October is 16 km/h, suggesting breezy to windy conditions, depending on your activities.

October rainfall patterns in Allentown

Explore the daily rainfall trends and prepare for Allentowns October weather 💧

UV exposure in Allentown during October

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

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Location coordinates Where is Allentown?

Get accurate weather forecasts for Allentown, located at latitude 40.608 and longitude -75.49. Stay updated with localized weather information tailored for Allentown.

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