CHESTER COUNTY, PA — The Chester County forecast for today calls for mostly cloudy skies, with a high near 52°F. Winds will be out of the south at 5 to 15 mph, with gusts up to 20 mph.
Offshore high pressure will keep things relatively calm today, but we can expect a more complex weather pattern as we move into the week. A series of low pressure systems look to move north of the area, bringing with them increased winds and colder temperatures.
As the night progresses, patchy fog may become more widespread in the area. This fog is a result of increased cloud coverage, humidity and a slight chance of rain due to a mid-level shortwave system pushing through the area.
With south winds at 5-10 mph expected overnight, temperatures will likely remain fairly stable in the mid-30s to mid-40s while the atmospheric moisture (PWAT) is expected to surge from 0.25 inches this afternoon to 0.75 inches tonight– allowing surface dew points to rise into the mid-40s as well.
All this combined could create a bit of a damp and misty atmosphere so be sure that if you plan on going out for evening activities, be prepared for some cooler temperatures and a foggy horizon.
Monday Through Tuesday Night
Chester County looks to be in for a mild start to the week, with Monday bringing mostly cloudy skies and a high near 56. There is only a slight chance of showers after 2 pm, and patchy fog before 9 am is possible; west winds may reach up to 15 mph at the peak of the day. Monday night continues the trend, with mostly cloudy skies and a low around 38; light northwest winds will become active after midnight.
Tuesday brings more variable weather with a chance of showers, partly sunny skies, and a high near 58. South winds will make things quite breezy in the afternoon, while Chester County will remain under a 50% chance of precipitation with new rainfall totals possibly lower than 0.10 inches. Tuesday night offers another chance of showers before 8 pm, but partly cloudy skies will still show points at night with temperatures dipping down to 33°F. 30% precipitation chances return for Chester County as well.
Wednesday Through Saturday
Chester County will experience variable weather conditions over the course of the second half of the week. On Wednesday, there will likely be showers after 2pm, with a cloudy sky and a high temperature of 44°F. The chance of precipitation is 60%. Wednesday night also contains a high chance of showers, with a low temperature in the mid-30s.
By Thursday morning Chester County can expect to see some early showers, transitioning into partly sunny skies before noon with a high temperature near 64°F and a 70% chance of precipitation.
Overnight Thursday into Friday Chester County will have partly cloudy skies and temperatures in the low 40s; but Friday is expected to be sunny and breezy during the daytime, dropping to around 26°F and potential snow showers at night.
Finally, Chester County residents can expect a wet and cloudy Saturday, with occasional rain showers and snow falling throughout the day. With temperatures hovering around 37°F, Chester Countians should dress warmly to ward off the chill. Keep in mind, though, that Chester County weather is unpredictable; a long-sleeved shirt and light coat wouldn’t hurt!
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