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What are the sources for WeatherOnline forecasts?


The WeatherOnline forecasts are created by using a MOS system developed in-house with the most current US weather services model data (GFS). The statistical methods of the Model-Output-Statistic (MOS)-System were developed in cooperation with the Meteorological Department of the University of Bonn.

What is a MOS-System?


A Model-Output-Statistic (MOS)-System combines the data of the weather forecast model and the locally recorded data for any given point by transforming the model data from a coarse grid to detailed small scale areas.
In order to do so, one needs a large volume of past model forecast data as well as the corresponding recorded data for any given location. The MOS-System relates these two sets of data in an optimized fashion allowing development of the local weather forecast by using the most current model forecast.

What are the time intervals used in the temperature and icons of the local forecasts?


The forecasted maximum temperature always refers to a 12hour window from 6am to 6om local time.
The forecasted minimum temperature always refers to the 12hour window from 6pm of the day before the forecast day to 6 am of the forecast day.
The weather icon for the morning refers to the time between 6am and 12pm local time, the icon for the afternoon is valid from 12am to 6pm local time and the evening icon refers to the time from 6pm to 12am local time.

How often are the current weather conditions and forecasts updated?


The current weather information as well as the satellite images are updated every 30 minutes whereas the radar images are being updated every 15 minutes.
The local weather forecasts as well as the weather charts are updated 8 times a day. The updates start at 2 am CEST or 3 am CEST depending on daylight saving time and continue on a three hourly bases.


Stations météo à proximité - Wentzville Distance
Pittsfield 7.5 km
Walnut Ridge Regional (Aéroport) 8.7 km
Washington Aéroport 16.0 km
Dubuque Regional (Aéroport) 17.5 km
Spirit of St. Louis (Aéroport) 21.6 km
Macomb Municipal (Aéroport) 22.1 km
Jonesboro Municipal (Aéroport) 22.7 km
Corning Aéroport 22.7 km
Southeast Iowa Regional (Aéroport) 29.9 km
Davenport Municipal (Aéroport) 29.9 km
Muscatine Municipal (Aéroport) 32.7 km
Newport 36.5 km
Quad Cities Intl. Airport 37.3 km
Fletcher Field 38.0 km
Quincy Regional (Aéroport) 39.0 km
Poplar Bluff(Amos) 42.7 km
W Memphis Municipal 43.3 km
Platteville Municipal (Aéroport) 45.8 km
Farmington Aéroport 46.4 km
Galesburg Municipal (Aéroport) 46.7 km
St. Charles 48.2 km
Lambert-Saint-Louis (Aéroport) 53.8 km
Fort Madison 53.9 km
Tunica Municipal (Aéroport) 56.2 km
Clinton Municipal (Aéroport) 57.6 km
Keokuk Municipal (Aéroport) 65.0 km
Hannibal Regional (Aéroport) 66.1 km
Jacksonville Aéroport 67.7 km
Mineral Point 68.7 km
Mount Pleasant Municipal (Aéroport) 73.7 km
Iowa City Municipal (Aéroport) 77.4 km
St. Louis Downtown (Aéroport) 77.9 km
Stuttgart Municipal (Aéroport) 80.3 km
Savanna Aéroport 82.4 km
Batesville Aéroport 89.3 km
Washington 91.1 km
St. Louis Regional (Aéroport) 91.1 km
Memphis Aéroport 94.6 km
Aéroport municipal de Cedar Rapids 96.7 km
Searcy Municipal (Aéroport) 99.2 km
Arkansas Intl. Airport 100.2 km
Rolla National (Aéroport) 102.1 km
Millington-Memphis (Aéroport) 109.4 km
Saint-Louis MidAmerica (Aéroport) 111.3 km
Blytheville Municipal (Aéroport) 115.0 km
West Plains Regional (Aéroport) 117.0 km
Olive Branch Aéroport 118.3 km
Grider Field 121.1 km
Independence Municipal (Aéroport) 122.5 km
Oelwen 124.7 km
Fairfield Municipal (Aéroport) 126.3 km
Sparta 128.0 km
Peoria Aéroport 129.9 km
Rock Falls Aéroport 130.6 km
Litchfield Municipal (Aéroport) 130.9 km
Vinton Aéroport 131.2 km
Abraham Lincoln Capital (Aéroport) 131.7 km
Monroe Municipal (Aéroport) 140.9 km
Freeport Aéroport 141.2 km
Cape Girardeau Regional (Aéroport) 142.9 km
Waynesville-St. Robert Regional (Aéroport) 142.9 km
Sikeston Aéroport 143.8 km
Jefferson 144.7 km
Little Rock Air Force Base 145.1 km
University-Oxford (Aéroport) 146.1 km
Columbia Regional (Aéroport) 152.1 km
Aéroport Clinton de Little Rock 154.7 km
Dyersburg Regional (Aéroport) 161.4 km
Lacon Aéroport 162.7 km
Logan County (Aéroport) 168.2 km
Taylorville Aéroport 169.3 km
Waterloo Regional (Aéroport) 172.9 km
Southern Illinois (Aéroport) 178.1 km
Ottumwa Regional (Aéroport) 178.2 km
Clinton Aéroport 178.5 km
Ozark Regional (Aéroport) 180.1 km
Marion 180.1 km
Cairo Aéroport 181.5 km
Oskaloosa Aéroport 183.1 km
Illinois Valley Regional (Aéroport) 189.2 km
Lee C. Fine Memorial (Aéroport) 189.3 km
Kirksville Regional (Aéroport) 189.3 km
Rockford Aéroport 194.7 km
Centralia 194.8 km
Rochelle Municipal (Aéroport) 196.8 km
Southern Wisconsin Regional (Aéroport) 202.1 km
Veterans Airport of Southern Illinois 204.1 km
Everett- Stewart Regional (Aéroport) 207.5 km
Salem-Leckrone 209.7 km
Grinnell Aéroport 209.8 km
McKellar- Sipes Regional (Aéroport) 215.1 km
Central Illinois Regional (Aéroport) 215.2 km
Decatur (Aéroport) 220.8 km
Mount Vernon (Aéroport) 220.8 km
Centerville Aéroport 228.1 km
Marshall Town Muni 230.3 km
Tupelo Regional (Aéroport) 231.7 km
Barkley Regional (Aéroport) 231.9 km
Pella Aéroport 233.1 km
Metropolis Municipal (Aéroport) 233.9 km