We started the week off with below average temperatures with low dew points, but that has since changed as we saw humid conditions return yesterday. Temperatures were above average for this time of year and dew points rose out ahead of a stationary front and low pressure in Canada.
Today we are starting to feel the effects of that stationary front which has advanced East-Southeastern overnight. Rainy conditions are expected to continue across Pennsylvania as we head throughout the day, with the chance for a rumble of thunder or two as well for locations in the South. A cold front is expected to pass central PA tonight into tomorrow.
As that cold front sweeps through, we can expect drier and more comfortable conditions tomorrow with partly cloudy skies. Dew points will be lower than the past two days, and temperatures will return to around average for this time of year. Beyond tomorrow, Saturday looks to stay around average temperature wise, also with lower dew points. Our next chance for rain is Sunday, as a low pressure system moves into the area bringing rain to much, if not all, of the state.