30 Day Long Range Weather for St. Louis, Missouri. Weather Outlook for 30 Days From Today. (2024)

FAQs

What kind of winter is predicted for St Louis Missouri? ›

Winter will be colder than normal, with the coldest periods in early and late December, early and late January, and early February. Precipitation and snowfall will be slightly above normal.

The Short Answer: A seven-day forecast can accurately predict the weather about 80 percent of the time and a five-day forecast can accurately predict the weather approximately 90 percent of the time. However, a 10-day—or longer—forecast is only right about half the time.

St. Louis is located at the confluence of the Mississippi and Missouri Rivers, and near the geographical center of the US. Its position in the middle latitudes allows the area to be affected by warm moist air that originates in the Gulf of Mexico, as well as cold air masses that originate in Canada.

AccuWeather gathers the best and most comprehensive weather data to deliver forecasts with Superior Accuracy. Forecasts are pinpointed for every location on Earth and extend further ahead than any other source.

Mild winter, less snow

With the polar jet to our north, any disturbances will be more borderline with rain and mixed precipitation types. Total precipitation should end up between 6.5” to 8” with 8 to 10” of snow possible this winter.

UPDATE: 2024's first major snowfall forecasted for mid-Missouri, echoes last year's prediction. The first substantial snow of the winter season is forecast to hit mid-Missouri on the 8th and 9th of January, 2024. This will be the very front of a pattern change that we have been forecasting since October of last year.

Looking through the archives, the hottest temperature ever recorded in St. Louis was at the Lambert International Airport on July 14, 1954. The mercury rose to a steamy 115 degrees. The top three hottest temperatures occurred in the year 1954, with a temperature of 112 degrees on July 18 and 110 degrees on July 12.

1884: The all time lowest temperature on record for St. Louis (-22 degrees) was recorded.

1954: July 14: Hottest temperature ever recorded for Missouri: 118° in Warsaw and Union.

In a composite measure of accuracy, the Weather Channel and Weather Underground came top, AccuWeather fifth, MeteoGroup (the BBC's new provider) sixth and the BBC ninth (based on Met Office forecasts).

Which weather website is most accurate? ›

According to ForecastWatch, the premier organization for evaluating the accuracy of weather forecasts, The Weather Company is more likely to be the most accurate across all geographic regions studied (U.S., Canada, Central America, South America, Europe, Africa, Middle East and Asia-Pacific) and time periods covered.

There have been tremendous improvements in the accuracy of longer range forecasts over the past several years. A forecast for the 7th day today is as accurate as it was for the 4th or 5th day 10 years ago. Further, there is now skill in forecasting out through 15 days, something that was not possible a few years ago.

0" over next 7 days.

Winter 2023-24 Temperature Outlook:

Locally, the odds have been tilted toward warmer-than-normal (not just a tenth of a degree warmer than normal, but among the warmest third of the winters from 1991-2020) in northeast Iowa, southeast Minnesota, and western Wisconsin.

Winter will be colder than normal, with above-normal precipitation and snowfall. The coldest spells will occur in late December, early January, and late January through mid-February.

By 2050, about 18.4" of rain are projected over about 13 storms each year. The annual precipitation in St. Louis, MO is projected to increase from about 39.2" to about 41.0". Extreme precipitation in any form can pose significant risks.