Philadelphia Area Weather Forecasts

WEEKEND WEATHER FORECAST

#Philadelphia #weather #PAwx #PhillyWx

Posted Sunday 05/11/25 @ 9:40 AM — A beautiful Mother’s Day. The weather couldn’t be finer. Light winds, low humidity. Highs near or above 80º

05-11-25 12z NBM forecast high temperatures for Sunday (Click on image for a larger view.)

Enjoy the great weather today, because the AI models are forecasting several days of rain, potentially heavy, from before daybreak Tuesday through Friday.

Clouds move in during the afternoon Monday and rain begins shortly after midnight early Tuesday morning.

Posted Saturday 05/10/25 @ 9:22 AM — Enjoy this wonderful (but somewhat cool and, initially, rather windy) weather that we’ll have through Monday. The models are consistently forecasting rainy weather from before daybreak Tuesday through early Thursday—

06z ECMWF-AI Single forecast for Tuesday at 8 AM. A slow moving system associated with another closed upper level low (Blue L) will move in before daybreak Tuesday. (Click on image for a larger view.)

Previously Posted Fri @ 5:33 PM — —Low pressure that gave us the rain on Friday will depart Friday night. High pressure builds in on Saturday. The pressure gradient between the departing low and the building high will cause windy conditions on Saturday.

NAEFS forecast for Saturday at 2 AM. High pressure will be in play over the weekend, keeping the developing low pressure system near the Gulf of Mexico Gulf of America Gulf of Mexico to be suppressed to our south. (Click on image for a larger view.)

Saturday Forecast

Sunny and windy.

NBM Winds and gusts

NBM high temperatures: Blue Bell, PA 71º Philadelphia, PA73º
Uncertainty (based on standard deviation) : above average ±2º

Sunday Forecast

Sunny and less windy.

NBM high temperatures: Blue Bell, PA 75º Philadelphia, PA 78º
Uncertainty (based on standard deviation): above average ±2º