Chester County, PA Weather Forecast and Current Conditions

Current Conditions From Nearby Local Station

Cloudy 27°F
Feels Like 27°F  
Humidity 52% Dew Point 12°F Wind WSW 1 MPH Gusts 3 Barometer 29.63 in.
Report from a personal weather station 1.6 mi. WSW of central Chester County
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Point Forecast at a Glance

TueDec 9
Tue Dec 9: Mostly Cloudy, Low 26F
 
26
WedDec 10
Wed Dec 10: Rain, High 40F, Low 27F
80%
40
27
ThuDec 11
Thu Dec 11: Mostly Sunny, High 34F, Low 24F
34
24
FriDec 12
Fri Dec 12: Snow, High 35F, Low 24F
20%
35
24
SatDec 13
Sat Dec 13: Mostly Cloudy, High 38F, Low 26F
38
26
SunDec 14
Sun Dec 14: Snow, High 33F, Low 15F
30%
33
15
MonDec 15
Mon Dec 15: Mostly Sunny, High 29F, Low 18F
29
18

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7-Day Temperature Trend

Week Ahead Summary

Cooling trend continues with high temperatures dropping from 40°F to 29°F. Unsettled weather expected with snow likely on at least 4 days.

Climate Context

This week's forecast shows temperatures running 10°F below the historical average for December. Normal highs for this period are around 44°F with lows around 28°F.

This Date in Weather History

1988 - A winter storm blanketed the Southern and Central Appalachians with up to ten inches of snow. Arctic air invaded the north central U.S. bringing subzero cold to Minnesota and North Dakota.

More on this and other weather history

Chester County, PA 7 Day Weather Forecast Details

Tuesday Dec 9

Mostly Cloudy

Night: Mostly cloudy, with a low around 26. Southwest wind 5 to 10 mph.

Wednesday Dec 10

Rain

Day: Rain, mainly before 5pm. High near 40. South wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

Mostly Cloudy

Night: Mostly cloudy, with a low around 27. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

Thursday Dec 11

Mostly Sunny

Day: Mostly sunny, with a high near 34. West wind around 15 mph, with gusts as high as 30 mph.

Partly Cloudy

Night: Partly cloudy, with a low around 24. West wind 10 to 15 mph.

Friday Dec 12

Snow

Day: A slight chance of snow after 1pm. Partly sunny, with a high near 35. Chance of precipitation is 20%.

Snow

Night: A chance of snow. Mostly cloudy, with a low around 24. Chance of precipitation is 40%.

Saturday Dec 13

Mostly Cloudy

Day: Mostly cloudy, with a high near 38.

Snow

Night: A chance of snow after 1am. Mostly cloudy, with a low around 26. Chance of precipitation is 40%.

Sunday Dec 14

Snow

Day: A chance of snow before 1pm. Partly sunny, with a high near 33. Chance of precipitation is 30%.

Mostly Clear

Night: Mostly clear, with a low around 15.

Monday Dec 15

Mostly Sunny

Day: Mostly sunny, with a high near 29.

Mostly Cloudy

Night: Mostly cloudy, with a low around 18.

Tuesday Dec 16

Mostly Sunny

Day: Mostly sunny, with a high near 32.


About Chester County, PA

Chester County, colloquially referred to as Chesco, is a county in the Commonwealth of Pennsylvania. It is located in the Delaware Valley region, located in the southeastern part of the state. As of the 2020 census, the population was 545,823. increasing by 7.1% from 498,886 in 2010. The county seat is West Chester. The most populous of the county's 73 municipalities, including cities, boroughs, and townships,) is Tredyffrin Township. The most populous boroughs are West Chester and Phoenixville. Coatesville is the only municipality in the county that is classified as a city. The county is part of the Southeast region of the commonwealth. Chester County was one of the three original Pennsylvania counties created by William Penn in 1682. It was named for Chester, England. It is part of the Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metropolitan statistical area. Along with northern Delaware County and southern Montgomery County, eastern Chester County is home to many communities that comprise part of the Philadelphia Main Line western suburbs of Philadelphia. As of 2020, the county had the highest median household income level in Pennsylvania, and the 35th-highest in the nation.

Content from Wikipedia, licensed under CC BY-SA 3.0.

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Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.