![]() ![]() In the case of snowfall, the total precipitation is given in centimetres. If the precipitation falls as water or sleet, the total precipitation is given in millimetres. ![]() Tonight: A 30 percent chance of rain, mainly after midnight. The total precipitation is given in inches. Today: Mostly cloudy, with a high near 57. For example in temperatures just above freezing, snowfall with the water content of 10 millimetres of water forms a snow layer 10 centimetres thick on the ground, but in temperatures around -20 degrees Celsius the layer formed by same amount of water is 20 centimetres thick. If the water content of the rain is kept constant, the colder the weather, the thicker a layer the falling snow forms on the ground.įor example in temperatures just above freezing, snowfall with the content of a quarter of an inch of water forms a 2,5 inches thick layer of snow on the ground, but in temperatures around -5 degrees Fahrenheit the same amount of water forms a layer of snow 5 inches thick. Temperatures also affect how much a given amount of snowfall grows the amount of snow on the ground. These factors cause the amount of snow on the ground to grow less than the snowfall amount. The total snowfall refers to the snowfall from the cloud and does not take into account local melting, packing or drifting of snow. The total precipitation forecast gives the expected total precipitation for the whole 24-hour day. Please note that especially in inland locations wind gusts can be up to 1,5 to 2,5 times stronger than the 10-minute average wind speed. The wind forecast shows the strongest expected 10-minute average wind speed of the day. Louis is 6.3 hPa, with a low of 1033.6 hPa and a high of 1039.9 hPa. The daily total fluctuation in pressure in St. LOUIS It's been a cold start to the week, with temperatures struggling to get to 40 for a good majority of the last couple days.Despite this late season cold air, we really haven't seen it. Weather conditions with updates on temperature, humidity, wind speed, snow, pressure, etc. Louis becomes more accurate the closer to the date of your visit, so always be sure to check in frequently for any weather updates. Louis, you will find it easier to plan your days. By knowing how cold, mild, warm, or hot the weather this week in St. Unlike the daily weather symbol, the temperatures, wind information and total precipitation take into account the whole 24-hour day. Louis, United States is predicted to quickly drop over the next few hours, with an average pressure of 1037.7 hPa today, which is higher than normal. Saint Louis, MO - Weather forecast from . Louis weather for this week and the next 14 days. ![]() Daily temperatures, wind information and total precipitation The cloudiness on the daily weather symbol is calculated as a weighted average of the predicted cloudiness of that day, with most weight assigned to the afternoon hours. You can see the more precise timing and intensity of the rain in the hourly forecast. The rain can be light rain that falls for a longer time period, or a heavy rain of short duration. The amount of rain drops on the daily weather symbol represent the total precipitation amount of that day. The weather in the evening or night time do not show on the symbol. The daily weather symbol gives an overview of the weather between 7 a.m. To view more weather and climate stories, check out our weather blogs section. Thursday: Mostly cloudy, with a high near 55. Wednesday Night: Mostly cloudy, with a low around 38. Wednesday: Partly sunny, with a high near 52. South wind between 6 and 10 mph, with gusts as high as 18 mph. Our team of meteorologists dives deep into the science of weather and breaks down timely weather data and information. Tonight: Partly cloudy, with a low around 32. It's not looking like much winter weather.Īs for February, Gosselin says “that month shows the best chance for winter storms and extreme cold.” Based on this information, December and January will probably see near average precipitation, but warmer than normal temperatures. Gosselin and his team used historical trends and expected patterns to make their forecast. Does this mean snow early in the season will equate to a snowy season overall? The short answer, no. ![]() Louis Lambert International Airport has already accrued 0.9” of snow. Last year’s winter saw 12” of snow overall, four inches below the seasonal normal. However, Gosselin mentions that the climate models this year suggest wetter conditions later in winter, including March. Climatologically, January and February are the snowiest months of winter. ![]()
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