Daily Forecast for Saturday, August 18th, 2018

Daily Forecast for Saturday, August 18th, 2018

Scattered thunderstorms are expected today state-wide. We don’t expect much in the way of severe activity, but a few storms in Southern PA could be strong in the afternoon and evening. Flash Flood Watches have been issued for much of Eastern PA due to the risk of localized flooding today.

Here is the Hi-Res NAM for 4:00 PM. As mentioned, storms will generally be scattered in nature.

Finally, here is your daily forecast. A fairly seasonable day temperature-wise is expected, as average highs are beginning to go down.

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