Weather Forecasts

 

http://www.weathercity.com/ca/sk/warman

 

http://www.accuweather.com/en/ca/warman/s0k/weather-forecast/50407

 

http://www.theweathernetwork.com/weather.canada.saskatchewan/warman

The forecasts are all different. This is because different people study the weather and post on the sites. Also, the weather could have been updated/posted at different times. 

Observing the weather, for centuries, was mostly done just by observing it. The rain gauge, barometer, anemometer, hygrometer, and thermometer weren't invented until between the fourteenth and seventeenth centuries. When the telegraph was invented in the 1840's, meteorologists had an easier time communicating with each other. By communicating through the telegraph, they were able to better predict the weather from coast to coast rather just from where they were individually. This definitely helped when predicting large storms occurring or even just a lighter rain. 

http://www.history.noaa.gov/tools/weathertech.html