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Allentown, PA Weather on August 26
August 26th in Allentown, PA typically brings warm summer weather, with average highs around 83°F and lows near 61°F. Over 55 years of records, the warmest August 26th was in 1972 (81°F average), while the coldest was 1987 (63°F) — a 18°F range across recorded history. Rain or other precipitation has occurred on about 20% of August 26th dates historically, with the wettest August 26th recording 1.2" of rain. The last decade has been 1.4°F warmer on this date compared to 20-30 years ago.
What to Expect on August 26
Planning for August 26th in Allentown, PA? Stay hydrated and seek shade during peak afternoon hours.
August 26 Weather Records for Allentown
- •The all-time record high for August 26th in Allentown, PA is 93°F, set in 1980.
- •The coldest August 26th on record dropped to 50°F in 1977.
- •Temperatures have reached 90°F or higher on August 26th in 7 of the last 55 years.
Frequently Asked Questions
What was the warmest August 26 ever in Allentown?
The warmest August 26 in Allentown, PA reached 93°F in 1980. That is 10°F above the long-term average high of 83°F.
What was the coldest August 26 ever in Allentown?
The coldest August 26 in Allentown, PA dropped to 50°F in 1977. That is 11°F below the long-term average low of 61°F.
What is the average temperature on August 26 in Allentown?
On August 26, Allentown averages a high of 83°F and a low of 61°F based on 55 years of NOAA weather observations from ALLENTOWN LEHIGH VLY INTL AP.
How many years of weather data are available for August 26 in Allentown?
We have 55 years of weather records for August 26 in Allentown, PA, sourced from NOAA's Global Historical Climatology Network. Records include daily high and low temperatures, precipitation, and snowfall data going back to 2025.
August 26 Weather History in Allentown
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 78°F | 52°F | 0" | -- |
| 2024 | 87°F | 61°F | 0" | -- |
| 2023 | 83°F | 65°F | 0.11" | -- |
| 2022 | 88°F | 66°F | 0" | -- |
| 2021 | 91°F | 69°F | 0" | -- |
| 2020 | 80°F | 62°F | 0" | -- |
| 2019 | 77°F | 56°F | 0" | -- |
| 2018 | 85°F | 62°F | 0" | -- |
| 2017 | 78°F | 52°F | 0" | -- |
| 2016 | 91°F | 68°F | 0" | -- |
| 2015 | 78°F | 56°F | 0" | -- |
| 2014 | 88°F | 58°F | 0" | -- |
| 2013 | 84°F | 62°F | 0.03" | -- |
| 2012 | 85°F | 63°F | 0" | -- |
| 2011 | 86°F | 62°F | 0" | -- |
| 2010 | 81°F | 57°F | 0" | -- |
| 2009 | 84°F | 63°F | 0" | -- |
| 2008 | 81°F | 51°F | 0" | -- |
| 2007 | 83°F | 62°F | 0.36" | -- |
| 2006 | 68°F | 65°F | 0.26" | -- |
| 2005 | 83°F | 56°F | 0" | -- |
| 2004 | 80°F | 58°F | 0" | -- |
| 2003 | 84°F | 64°F | 0" | -- |
| 2002 | 83°F | 57°F | 0" | -- |
| 2001 | 82°F | 55°F | 0" | -- |
| 2000 | 83°F | 54°F | 0" | -- |
| 1999 | 82°F | 65°F | 1.2" | -- |
| 1998 | 85°F | 69°F | 0.27" | -- |
| 1997 | 80°F | 61°F | 0" | -- |
| 1996 | 86°F | 57°F | 0" | -- |
| 1995 | 85°F | 51°F | 0" | -- |
| 1994 | 84°F | 65°F | 0" | -- |
| 1993 | 92°F | 68°F | 0" | -- |
| 1992 | 90°F | 68°F | 0" | -- |
| 1991 | 82°F | 59°F | 0" | -- |
| 1990 | 88°F | 64°F | 0" | -- |
| 1989 | 80°F | 53°F | 0" | -- |
| 1988 | 83°F | 58°F | 0.06" | -- |
| 1987 | 76°F | 51°F | 0" | -- |
| 1986 | 80°F | 58°F | 0" | -- |
| 1985 | 84°F | 71°F | 0" | -- |
| 1984 | 80°F | 56°F | 0" | -- |
| 1983 | 90°F | 60°F | 0" | -- |
| 1982 | 78°F | 54°F | 0" | -- |
| 1981 | 80°F | 61°F | 0" | -- |
| 1980 | 93°F | 65°F | 0" | -- |
| 1979 | 80°F | 68°F | 0" | -- |
| 1978 | 78°F | 58°F | 0" | -- |
| 1977 | 78°F | 50°F | 0" | -- |
| 1976 | 88°F | 67°F | 0" | -- |
| 1975 | 89°F | 71°F | 0.02" | -- |
| 1974 | 75°F | 64°F | 0.05" | -- |
| 1973 | 87°F | 64°F | 0" | -- |
| 1972 | 90°F | 72°F | 0.15" | -- |
| 1971 | 83°F | 60°F | 0.07" | -- |
Based on 55 years of data from NOAA station: ALLENTOWN LEHIGH VLY INTL AP
Monthly Climate Averages
Historical temperature and precipitation averages for Allentown, PA, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.