Get the forecast. Be prepared with the most accurate 10-day forecast for St. Louis, MO with highs, lows, chance of precipitation from The Weather Channel and Weather.com There have been 7 different years the recorded rainfall amount has exceeded 1 inch. Get the monthly weather forecast for St. Louis, MO, including daily high/low, historical averages, to help you plan ahead. Nov December 2020 . Get the monthly weather forecast for St. Louis, MO, including daily high/low, historical averages, to help you plan ahead. Monthly averages Lake Saint Louis Longitude: -90.7884, Latitude: 38.7809 Average weather Lake Saint Louis, MO - 63367. The most pleasant months of the year for St. Louis are May, September and June. Maximum temperature yesterday: 36 °F (at 12:51 am) Minimum temperature yesterday: 27 °F (at 11:51 pm) Average temperature yesterday: 32 °F. The highest temperature measured during that time was 115 degrees Fahrenheit (46 Celsius) on July 14, 1954. Based on weather reports collected during 1985–2015. St. Louis Temperature Yesterday. July is the hottest month for St. Louis with an average high temperature of 88.5°, which ranks it as about average compared to other places in Missouri. In St. Louis, there are 3 comfortable months with high temperatures in the range of 70-85°. Since 1946 the temperature extremes were observed at St. Louis Lambert International Airport. These records go back to 1893. Monthly: 1981-2010 normals Average Weather in December in St. Louis Missouri, United States. Averages are for St. Paul International Airport, which is 7 miles from Minneapolis. For the St. Louis area there is a 40% chance that there will be measurable rainfall on Memorial Day. Calendar overview of Months Weather Forecast. Free Long Range Weather Forecast for St. Louis, Missouri. Since 1946 the temperature extremes were observed at St. Louis Lambert International Airport. Station Data. These records go back to 1893. The lowest temperature measured during that time was -18 degrees Fahrenheit (-28 Celsius) on January 20, 1985 and February 13, 1905. ... Includes Daily Risk of Precipitation, High/Low/Average Temperatures, Heating/Cooling Degree Days and Growing Degree Days ... Click or Tap on any day for a detailed forecast. High & Low Weather Summary for the Past Weeks Twice it has exceeded 2 inches! Before then, the weather station was at downtown St. Louis. Before then, the weather station was at downtown St. Louis. Up to 2 feet of snow to bury New England this weekend. Annual Weather Averages Near Minneapolis. Missouri, United States including daily high/low, historical averages, to help you plan ahead there are 3 months. Saint Louis Longitude: -90.7884, Latitude: 38.7809 average weather in December in St... 7 different years the recorded rainfall amount has exceeded 1 inch degrees (... 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