According to National Weather Service Mount Holly, Philadelphia is waking to a crisp Halloween morning before sunshine takes over and temperatures climb to around 61 degrees Saturday afternoon. North winds will run 5 to 10 mph, with no rain expected for trick-or-treating, parties or last-minute costume errands.
A Crisp Halloween Night
Saturday night will turn partly cloudy and chilly, with temperatures falling to around 41 degrees. Winds will ease to 5 mph or less, keeping the evening quiet but decidedly jacket weather.
Halloween Compared With October Normals
The forecast high of 61 degrees and low near 41 are below Philadelphia’s October averages. According to National Weather Service Philadelphia/Mount Holly climate normals for KPHL, the normal October high is 67.2°F and the normal low is 49.2°F.
Some colder locations outside the city could see patchy frost overnight, and frost advisories have been issued for portions of southeastern Pennsylvania and southern New Jersey, but do not include Philadelphia, as reported by National Weather Service Mount Holly.
Warmth Builds Before Rain Returns
Sunday will be a little milder, with partly sunny skies and a high near 64. The warming trend continues Monday and Tuesday, when highs are forecast near 66 and 70 degrees, followed by a mostly sunny Wednesday that could reach 73.
The dry stretch starts to break late Wednesday night, when rain shower chances rise to about 30%. Showers and a few thunderstorms are possible Thursday, with rain showers likely continuing into Friday.
