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 - Boulder Distance
Boulder Airport 1.2 km
Vance Brand Airport 7.3 km
Rocky Mountain Metropolitan Airport 13.1 km
Erie Airport 18.5 km
Northern Colorado Regional Airport 25.9 km
Centennial Airport 43.2 km
Florence Airport 48.3 km
Francis E. Warren Air Force Base 50.2 km
Buckley Space Force Base 51.9 km
United States Air Force Academy 54.1 km
Cheyenne Regional Airport 55.9 km
Denver Intl. Airport 62.6 km
Laramie Airport 62.9 km
Fort Carson 63.4 km
Colorado Springs Airport 65.7 km
Greeley- Weld County Airport 66.0 km
Torrington Airport 74.4 km
Colorado Air and Space Port 75.3 km
Meadow Lake Airport 78.4 km
Converse 83.2 km
Pueblo Memorial Airport 94.1 km
Harriet Alexander Field 103.0 km
San Luis Valley Regional Airport 106.0 km
Angel Fire Airport 106.1 km
Buena Vista Airport 107.1 km
Taos Airport 117.5 km
Walden Airport 119.8 km
Saguache 121.0 km
Raton Airport 123.4 km
Pine Bluffs Muni 124.5 km
Lake County Airport 124.8 km
Perry Stokes Airport 125.8 km
Kremmling Airport 128.3 km
Gillette 132.2 km
Del Norte Airport 144.6 km
Mondell Fld AP 148.1 km
Hulett Airport 150.8 km
Fort Morgan Airport 157.5 km
Casper 164.4 km
Limon Airport 173.9 km
Kimball Airport 174.3 km
Steamboat Springs Airport 184.2 km
Shively Field Airport 184.5 km
Aspen/Pitkin 185.8 km
Western Nebraska Regional Airport 187.0 km
Eagle County Regional Airport 189.4 km
Gunnison 196.6 km
La Junta Airport 197.3 km
Black Hills Airport 202.0 km
Custer Airport 205.4 km
Buffalo Airport 213.5 km
Sterling Airport 217.9 km
Stevens Field 221.6 km
Colorado Plains Regional Airport 222.9 km
Yampa Valley Airport 223.1 km
Rawlins Airport 227.5 km
Sheridan Airport 243.3 km
Chadron Airport 247.6 km
Rapid City Airport 248.5 km
Clayton Municipal Airpark 249.9 km
Sidney Airport 250.3 km
Dixon Airport 255.3 km
Craig 258.3 km
Ellsworth Air Force Base 260.8 km
Alliance Airport 274.4 km
Garfield County Regional Airport 280.0 km
Lamar Airport 286.4 km
Durango 296.3 km
Springfield 298.6 km
Meeker 298.7 km
Montrose Airport 302.6 km
Telluride Regional Airport 305.9 km
Pine Ridge Airport 310.9 km
Dalhart Airport 315.5 km
Delta 319.4 km
Kit Carson County Airport 327.4 km
Holyoke Airport 328.0 km
Worland Airport 328.8 km
Wray Airport 331.3 km
Wray Airport 331.3 km
South Big Horn Co Arpt 349.5 km
Four Corners Regional Airport 351.8 km
Grand Junction Regional Airport 370.4 km
Riverton Airport 373.9 km
Nucla 377.0 km
Elkhart 377.5 km
Cheyenne County Airport 380.8 km
Searle Field Airport 385.1 km
Cortez Airport 390.4 km
Goodland Airport 392.6 km
Stanton County Airport 393.2 km
Imperial 400.9 km
Lander/Hunt Field AP 401.7 km
Philip Airport 415.5 km
Guymon Airport 421.9 km
Powell Airport 427.8 km
Southwest Wyoming Regional Airport 431.6 km
Yellowstone Regional Airport 447.5 km
Colby Airport 464.5 km
Vernal Regional Airport 478.9 km