Most weather apps show the same handful of national forecast models, tuned for a grid point somewhere near Lethbridge. Our 5-day forecast is different: it’s produced right here at the station using WXSIM, forecasting software that starts from this station’s own live readings.

WXSIM takes the current conditions measured on the west side, combines them with the latest model data, and simulates how the atmosphere over this spot is likely to change hour by hour. The forecast is refreshed regularly through the day.

Why that helps

  • It starts from what’s actually happening here, not at the airport.
  • It picks up local effects like overnight cooling in the coulees and how quickly a chinook warms things up.
  • You can compare it with the official Environment Canada forecast. When the two agree, you can be more confident. When they don’t, it’s a sign the weather is harder to call.

How to use it

  • Check the overnight lows before planting, pouring concrete or leaving a vehicle outside.
  • Look at the wind and gust forecast before towing or hauling a trailer.
  • Read the forecast and the Environment Canada warnings together when storms are possible.

Find it under 5 Day Forecast in the menu.

Related: 5-day forecast · Environment Canada forecast