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 - Rancho Cucamonga Distance
Ontario Intl. Airport 9.4 km
Riverside Airport 10.1 km
Corona Airport 13.5 km
Chino Airport 14.3 km
Southern California Logistics Airport 29.6 km
Brackett Field 29.7 km
Grey Butte Field Airport 30.2 km
March Air Reserve Base 31.1 km
San Bernardino Intl. Airport 31.4 km
John Wayne Airport 44.1 km
Marine Corps Air Station Camp Pendleton 44.3 km
Fallbrook Airport 47.6 km
Oceanside Airport 48.2 km
Murrieta Hot Springs 50.4 km
Fullerton Airport 53.1 km
McClellan- Palomar Airport 55.2 km
San Gabriel Valley Airport 57.5 km
Edwards Air Force Base 58.8 km
Edwards 60.7 km
Joint Forces Training Base 61.5 km
Palmdale Regional Airport 69.0 km
Long Beach Airport 71.9 km
Big Bear Airport 74.1 km
Marine Corps Air Station Miramar 77.1 km
Montgomery-Gibbs Executive Airport 77.5 km
Naval Air Station North Island 78.3 km
San Diego Intl. Airport 79.3 km
Downtown Los Angeles 79.8 km
Naval Air Weapons Station China Lake 84.6 km
General William J. Fox Airfield 85.3 km
Ramona Airport 85.5 km
Mojave Air and Space Port Airport 86.9 km
Gillespie Field Airport 88.3 km
Naval Outlying Landing Field Imperial Beach 89.4 km
Barstow-Daggett Airport 90.4 km
Hawthorne Airport 91.5 km
Zamperini Field 92.2 km
Burbank 93.0 km
Los Angeles Intl. Airport 97.1 km
Brown Field Airport 97.5 km
Tijuana Airport 99.3 km
Whiteman Airport 100.6 km
Santa Monica Airport 104.0 km
Catalina Airport 104.6 km
Van Nuys Airport 107.8 km
Palm Springs Intl. Airport 113.9 km
Bicycle Lake Army Airfield 115.8 km
Tehachapi Airport 116.5 km
San Clemente Island Airport 131.6 km
Campo 138.4 km
Sandberg Airport 139.9 km
Twentynine Palms Airport 151.2 km
Jacqueline Cochran Regional Airport 152.0 km
Camarillo Airport 175.5 km
Naval Air Station Point Mugu 178.1 km
Meadows Field Airport 184.9 km
Oxnard Airport 187.5 km
Eastern Sierra Regional Airport 195.6 km
Porterville Airport 200.4 km
Tonopah Airport 208.2 km
Mercury/Desert Rock 209.8 km
Naval Air Facility El Centro 213.6 km
Naval Outlying Landing Field San Nicolas 219.9 km
Imperial County AP 224.0 km
Mammoth Yosemite Airport 237.2 km
Creech Air Force Base Airport 240.1 km
Visalia Airport 240.8 km
Santa Barbara Airport 258.6 km
Hanford Airport 262.2 km
Mexicali (IAP) 264.3 km
Hawthorne Industrial Airport 264.7 km
Nuevo León 271.6 km
North Las Vegas Airport 278.6 km
Harry Reid Intl. Airport 279.6 km
Henderson Executive Airport 281.1 km
Fresno Yosemite Intl. Airport 283.6 km
Santa Ynez Airport 286.2 km
Nellis Air Force Base 296.0 km
Naval Air Station Lemoore 296.4 km
Boulder City Airport 309.4 km
Blythe Airport 312.5 km
Needles Airport 324.5 km
Madera Airport 328.1 km
Santa Maria Public Airport 329.5 km
Lompoc Airport 330.0 km
Yuma Intl. Airport 331.4 km
Yuma Intl. Airport 331.4 km
San Felipe 332.4 km
Laughlin/Bullhead Intl. Airport 333.3 km
Vandenberg Space Force Base 343.1 km
Lake Havasu City Airport 352.4 km
San Luis Obispo County Regional Airport 353.4 km
Paso Robles Airport 357.3 km
Merced Regional Airport 375.9 km
Lake Tahoe Airport 377.5 km
Castle Airport 383.5 km
Columbia Airport 386.3 km
Kingman Airport 401.1 km
Modesto 428.0 km
Placerville Airport 439.2 km