Kingshuk Mondal / CC BY 4.0
St. Louis, MO Weather on August 25
St. Louis hits 103°F on August 25, 2011
August 25 brings typically warm conditions to St. Louis with average highs near 88°F, but the date is marked by extremes in the historical record. The record high of 103°F set in 2011 represents a scorching 15-degree spike above normal, while a surprisingly cool record low of 50°F was recorded as recently as 2025. Across 52 years of data, this August date showcases the wide temperature swings possible in the Midwest during late summer.
What to Expect on August 25
Planning for August 25th in St. Louis, MO? Stay hydrated and seek shade during peak afternoon hours.
Frequently Asked Questions
What was the warmest August 25 ever in St. Louis?
The warmest August 25 in St. Louis, MO reached 103°F in 2023. That is 15°F above the long-term average high of 88°F.
What was the coldest August 25 ever in St. Louis?
The coldest August 25 in St. Louis, MO dropped to 50°F in 2025. That is 16°F below the long-term average low of 66°F.
What is the average temperature on August 25 in St. Louis?
On August 25, St. Louis averages a high of 88°F and a low of 66°F based on 52 years of NOAA weather observations from ST LOUIS ST LOUIS UNIV.
How many years of weather data are available for August 25 in St. Louis?
We have 52 years of weather records for August 25 in St. Louis, MO, sourced from NOAA's Global Historical Climatology Network. Records include daily high and low temperatures, precipitation, and snowfall data going back to 2025.
August 25 Weather History in St. Louis
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 75°F | 50°F | 0" | -- |
| 2024 | 97°F | 68°F | 0" | -- |
| 2023 | 103°F | 75°F | 0" | -- |
| 2022 | 91°F | 59°F | 0" | -- |
| 2021 | 96°F | 74°F | 0" | -- |
| 2020 | 93°F | 68°F | 0" | -- |
| 2019 | 73°F | 66°F | 0.82" | -- |
| 2018 | 91°F | 69°F | 0" | -- |
| 2017 | 78°F | 68°F | 0" | -- |
| 2016 | 94°F | 74°F | 0" | -- |
| 2015 | 80°F | 56°F | 0" | -- |
| 2014 | 98°F | 79°F | 0" | -- |
| 2013 | 93°F | 70°F | 0" | -- |
| 2012 | 95°F | 72°F | 0" | -- |
| 2011 | 103°F | 70°F | 0" | -- |
| 2010 | 87°F | 67°F | 0" | -- |
| 2009 | 78°F | 58°F | 0" | -- |
| 2008 | 83°F | 61°F | 0" | -- |
| 2007 | 81°F | 71°F | 0.91" | -- |
| 2006 | 88°F | 64°F | 0" | -- |
| 2005 | 82°F | 66°F | 0" | -- |
| 2004 | 84°F | 64°F | 0.8" | -- |
| 2003 | 91°F | 72°F | 0" | -- |
| 2002 | 84°F | 69°F | 0" | -- |
| 2001 | 83°F | 71°F | 0.14" | -- |
| 2000 | 83°F | 68°F | 0" | -- |
| 1999 | 82°F | 65°F | 0" | -- |
| 1998 | 94°F | 75°F | 0" | -- |
| 1997 | 86°F | 65°F | 0" | -- |
| 1996 | 87°F | 67°F | 0" | -- |
| 1995 | 90°F | 64°F | 0" | -- |
| 1994 | 80°F | 67°F | 0" | -- |
| 1993 | 92°F | 72°F | 0.01" | -- |
| 1992 | 92°F | 67°F | 0" | -- |
| 1991 | 94°F | 67°F | 0" | -- |
| 1990 | 89°F | 70°F | 0" | -- |
| 1989 | 84°F | 69°F | 0" | -- |
| 1988 | 94°F | 59°F | 0" | -- |
| 1987 | 83°F | 62°F | 0.1" | -- |
| 1986 | 93°F | 69°F | 0" | -- |
| 1985 | 74°F | 57°F | 0" | -- |
| 1981 | 91°F | 64°F | 0" | -- |
| 1980 | 89°F | 56°F | 0" | -- |
| 1979 | 82°F | 59°F | 0" | -- |
| 1978 | 102°F | 72°F | 0" | -- |
| 1977 | 76°F | 56°F | 0" | -- |
| 1976 | 90°F | 66°F | 0" | -- |
| 1975 | 93°F | 73°F | 0" | -- |
| 1974 | 85°F | 62°F | 0.02" | -- |
| 1973 | 92°F | 67°F | 0" | -- |
| 1972 | 86°F | 70°F | 0" | -- |
| 1971 | 97°F | 67°F | 0" | -- |
Based on 52 years of data from NOAA station: ST LOUIS ST LOUIS UNIV
How Has August 25 Changed?
The last decade has been 1.5°F warmer on this date compared to 20-30 years ago.
Monthly Climate Averages
Historical temperature and precipitation averages for St. Louis, MO, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.