Daily Archives: Friday, February 21, 2025 8:18 pm

Philadelphia Area Weather Forecasts

WEEKEND WEATHER FORECAST

#Philadelphia #weather #PAwx

A simple forecast for this weekend. High pressure generally in control with moderating temperatures. A few disturbances in the upper atmosphere will pass through both Saturday and Sunday afternoons with some increased cloudiness.

Here’s the water vapor image from this afternoon—

Current satellite water vapor image with superimposed RAP model), Mean Sea Level Pressure isobars (black contours) potential vorticity (NAM and GFS) (fine violet/yellow contours) with superimposed MRMS RADAR. (Click on image for a larger view.)

Saturday Forecast

Sunny in the morning with sunshine through high level clouds in the afternoon. Still somewhat windy/breezy.

NBM high temperatures: Blue Bell, PA 40º Philadelphia, PA 41º
Low uncertainty (based on standard deviation): ± 1.1º

Sunday Forecast

Similar forecast to Saturday. Sunny in the morning, sunshine through high cloudiness in the afternoon.

NBM high temperatures: Blue Bell, PA 44º Philadelphia, PA 46º
Low uncertainty (based on standard deviation): ± 1.0º

The ECMWF has released a new AI model, called the AIFS -Single. I’ll be adding this to the multitude of models I use to create my forecasts in the coming days.