Philadelphia Area Weather Forecasts

WEEKEND WEATHER FORECAST

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Cold Front on our Doorstep

Posted Saturday 03/01/25 @ 9:10 AM — The cold front is just entering western suburbs at 9 AM—

12z HRRR 3 hour pressure change at 9 AM along with airport TAF observations (Click on image for a larger view.)

The RTMA at 8:45 captures the wind gusts behind the front. Currently not that impressive—

RTMA at 8:45 AM Wind and wind gusts (Click on image for a larger view.)

Previously Posted Fri @ 5:17 PM — —March will “come in like a lion” tomorrow, as a strong cold front moves through the area between 8 and 10 AM. The wind meteogram below shows the wind shift associated with the frontal passage—

Today’s 18z HRRR wind forecast meteogram for Blue Bell, PA. Wind shift with the front 8-10 AM. Gusty winds early evening! (Click on image for a larger view.)

Cold high pressure builds in behind the front, as shown by the latest ECMWF-AI Single model—

Today’s 12z ECMWF-AIFS-SINGLE forecast for Saturday 7 AM. Cold high pressure builds in from Canada. (Click on image for a larger view.)

Saturday Forecast

Some clouds after sunrise, then mostly sunny and increasingly windy in the late afternoon and evening. Some models show a period of cloudiness for an hour or so during the afternoon. Highest temperatures around noon, then temperatures drop during the afternoon.

NBM high temperatures: Blue Bell, PA 55º Philadelphia, PA 58º
High uncertainty (based on standard deviation): ± 2.3º


Sunday Forecast

Sunny, windy and cold. Decreasing winds by mid to late afternoon.

NBM high temperatures: Blue Bell, PA 34º Philadelphia, PA 36º
Average to Low uncertainty (based on standard deviation): ± 1.3º