WXSIM Forecast for Southlake, Texas
Prepared by The Bollar Organization Updated: Sunday, August 29, 2021 4:30 PM CDT Next Update: Friday, October 17, 2025 4:30 AM CDTWXSIM Forecast
The WXSIM hyperlocal forecast is generated locally using government and university-supplied meteorological data, combined with our local observations and is extremely accurate for the upcoming forty-eight hours. Our forecast accuracy is tracked through the charts below.
WXSIM Mean Net Error as a Function of Date
This shows mean net error for daily maximum, minimum, and average ((max+min)/2) , and also the departure of this average temperature from climatological seasonal normal for the site, all as a function of the number of days before the last forecast analyzed.

Mean Net Error as a Function of Departure from Normal
This illustrates net error in slope-intercept form. The vertical axis is the net error, and the horizontal one is departure from normal (for the forecast, in this case, not the actual result).
