Remnants of Delta to Bring Multiple Inches of Rain to Pennsylvania Sunday into Monday

Remnants of Delta to Bring Multiple Inches of Rain to Pennsylvania Sunday into Monday

After making landfall as a category two hurricane in southern Louisiana, Delta has fallen apart as its moved inland. However, a large area of rainfall remains leftover, and it will be making its way to Pennsylvania Sunday afternoon into Monday morning. Flash flooding is not a concern in our area, as we have been dry for a while and this rain will decrease drought concerns.

Rain will move into southern Pennsylvania just after lunchtime Sunday, and will slowly move north-northeast from there. Below is future radar for 3:00 PM Sunday afternoon.




Moderate rain is expected to reach the I-80 corridor by late Sunday evening. Meanwhile, more moderate rain will continue across all of the southern half of the state. Here is future radar for 9:00 PM Sunday evening.

The heaviest of the rain is likely to fall early Monday morning east of I-81 and south of I-80. It will be soggy Monday AM commute for many of us. Below is future radar for 6:00 AM Monday.




Rain will move out of central PA by mid-morning and eastern PA by around lunchtime Monday. Below is future radar for 12:00 PM Monday.




DELTA RAINFALL FORECAST MAP

Area A: Rainfall amounts of 2.0″ expected, with isolated areas possibly picking up slightly more.

Area B: Rainfall amounts of 1.0 – 2.0″ anticipated.

Area C: Rainfall amounts of .50 – 1.0″ expected.

Area D: Rainfall amounts of .25 – .50″ anticipated.

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Josh Adams is the founder and lead forecaster of Pennsylvania Weather Action, a regional forecasting site he launched in 2015. With over a decade of experience analyzing weather patterns across Pennsylvania, his forecasts have reached millions of readers throughout the state. Josh specializes in Pennsylvania’s complex microclimates and terrain-driven weather patterns, providing detailed coverage of severe thunderstorms, winter storms, and flooding events. His forecasting focuses on delivering precise, timely information to help Pennsylvanians stay informed and prepared during impactful weather. Last Updated: March 10, 2026