World

North America



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.


Nearby Weather Stations - Chesterfield Distance
Quad Cities Intl. Airport 4.7 km
Davenport Airport 4.9 km
Fletcher Field 6.1 km
Poplar Bluff(Amos) 9.5 km
Corning Airport 11.2 km
Jonesboro Airport 11.6 km
Macomb Airport 11.6 km
Spirit of St. Louis Airport 11.8 km
Platteville Airport 12.7 km
Farmington Airport 13.0 km
Galesburg Airport 13.4 km
St. Charles 14.8 km
Dubuque Regional Airport 17.3 km
St. Louis Lambert Intl. Airport 20.4 km
Tunica Airport 22.9 km
Clinton Airport 24.3 km
Pittsfield 26.0 km
Jacksonville Airport 34.3 km
Mineral Point 35.4 km
Walnut Ridge Regional Airport 41.0 km
St. Louis Downtown Airport 44.5 km
Savanna Airport 49.0 km
Washington Airport 49.4 km
St. Louis Regional Airport 57.7 km
Memphis Airport 61.2 km
Southeast Iowa Regional Airport 63.2 km
Muscatine Airport 65.9 km
Arkansas Intl. Airport 66.8 km
Newport 69.6 km
Quincy Regional Airport 72.4 km
Millington-Memphis Airport 76.0 km
W Memphis Municipal 76.3 km
MidAmerica St. Louis Airport 77.9 km
Blytheville Airport 81.6 km
Olive Branch Airport 84.9 km
Fort Madison 87.3 km
Sparta 94.6 km
Peoria Airport 96.5 km
Rock Falls Airport 97.2 km
Litchfield Airport 97.5 km
Abraham Lincoln Capital Airport 98.3 km
Keokuk Airport 98.4 km
Hannibal Regional Airport 99.5 km
Mount Pleasant Airport 107.1 km
Monroe Airport 107.5 km
Freeport Airport 107.8 km
Cape Girardeau Regional Airport 109.5 km
Sikeston Airport 110.4 km
Iowa City Airport 110.7 km
University-Oxford Airport 112.7 km
Stuttgart Airport 113.4 km
Batesville Airport 122.6 km
Washington 124.4 km
Dyersburg Regional Airport 128.0 km
Lacon Airport 129.3 km
Eastern Iowa Airport 130.0 km
Searcy Airport 132.4 km
Logan County Airport 134.8 km
Rolla National Airport 135.4 km
Taylorville Airport 135.9 km
Southern Illinois Airport 144.7 km
Cairo Airport 148.1 km
West Plains Regional Airport 150.3 km
Grider Field 154.3 km
Independence Airport 155.8 km
Illinois Valley Regional Airport 155.8 km
Oelwen 157.9 km
Fairfield Airport 159.6 km
Rockford Airport 161.3 km
Centralia 161.4 km
Rochelle Airport 163.4 km
Vinton Airport 164.5 km
Southern Wisconsin Regional Airport 168.7 km
Veterans Airport of Southern Illinois 170.7 km
Everett- Stewart Regional Airport 174.1 km
Salem-Leckrone 176.3 km
Waynesville-St. Robert Regional Airport 176.3 km
Jefferson 178.1 km
Little Rock Air Force Base 178.3 km
McKellar- Sipes Regional Airport 181.8 km
Central Illinois Regional Airport 181.8 km
Columbia Regional Airport 185.5 km
Decatur Airport 187.4 km
Mount Vernon Airport 187.4 km
Clinton National Airport 187.9 km
Tupelo Regional Airport 198.4 km
Barkley Regional Airport 198.5 km
Metropolis Airport 200.5 km
DeKalb Airport 205.1 km
Waterloo Regional Airport 206.1 km
Ottumwa Regional Airport 211.6 km
Clinton Airport 211.8 km
Ozark Regional Airport 213.4 km
Marion 213.4 km
Pontiac Airport 214.7 km
Oskaloosa Airport 216.5 km
Roscoe Turner Airport 216.6 km
Mayfld Grav Cnty AP 218.7 km
Harrisburg 222.6 km
Lee C. Fine Memorial Airport 222.6 km