National Weather Service United States Department of Commerce

Unsettled weather forecast across eastern U.S.

A storm system moving across the Great Lakes will bring unsettled weather to parts of the eastern U.S. on Monday, with widespread rain is expected across much of the Northeast. Snow is likely across Wisconsin and the western Great Lakes. Snow is also expected across the central and northern Rockies Monday into Tuesday.
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Current Conditions

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Downingtown PA

7 Day Forecast

For More Weather Information:

Philadelphia, PA Local Forecast Office

Tonight

Partly Cloudy

Partly
Cloudy

Low: 45 °F

Tuesday

Mostly Sunny

Mostly
Sunny

High: 54 °F

Tuesday
Night

Chance Rain Chance for Measurable Precipitation 40%

Chance
Rain

Low: 38 °F

Wednesday

Rain/Snow Chance for Measurable Precipitation 100%

Rain/Snow

High: 39 °F

Wednesday
Night

Snow Likely Chance for Measurable Precipitation 60%

Snow
Likely

Low: 30 °F

Thanksgiving
Day

Mostly Cloudy

Mostly
Cloudy

High: 38 °F

Thursday
Night

Partly Cloudy

Partly
Cloudy

Low: 22 °F

Friday

Mostly Sunny

Mostly
Sunny

High: 36 °F

Friday
Night

Partly Cloudy

Partly
Cloudy

Low: 24 °F

Detailed Forecast

  • Tonight Partly cloudy, with a low around 45. Southwest wind 9 to 15 mph becoming west after midnight.
  • Tuesday Mostly sunny, with a high near 54. West wind 8 to 13 mph.
  • Tuesday Night A chance of rain after 2am. Mostly cloudy, with a low around 38. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
  • Wednesday Rain before noon, then snow. The snow could be heavy at times. High near 39. North wind 7 to 11 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.
  • Wednesday Night Snow likely, mainly before midnight. Cloudy, with a low around 30. Northwest wind 6 to 10 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
  • Thanksgiving Day Mostly cloudy, with a high near 38.
  • Thursday Night Partly cloudy, with a low around 22.
  • Friday Mostly sunny, with a high near 36.
  • Friday Night Partly cloudy, with a low around 24.
  • Saturday Partly sunny, with a high near 40.
  • Saturday Night Mostly cloudy, with a low around 33.
  • Sunday Partly sunny, with a high near 46.
  • Sunday Night Mostly cloudy, with a low around 36.
  • Monday Partly sunny, with a high near 46.