National Weather Service United States Department of Commerce

Developing storm will spread rain across eastern U.S.; thunderstorms in the Southeast

A storm system developing in the South will move up the Mississippi River Valley on Sunday bringing rainfall to much of the eastern U.S., along with thunderstorms in the southeastern states. Some of the thunderstorms in the Southeast could produce large hail, damaging wind and heavy rain.
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Current Conditions

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2 Miles NNE Nachusa IL

7 Day Forecast

For More Weather Information:

Chicago, IL Local Forecast Office

Tonight

Rain Chance for Measurable Precipitation 80%

Rain

Low: 48 °F

Sunday

Rain Chance for Measurable Precipitation 100%

Rain

High: 52 °F

Sunday
Night

Rain Chance for Measurable Precipitation 100%

Rain

Low: 35 °F

Monday

Snow Likely Chance for Measurable Precipitation 70%

Snow
Likely

High: 35 °F

Monday
Night

Chance Snow Chance for Measurable Precipitation 40%

Chance
Snow

Low: 19 °F

Tuesday

Chance Flurries

Chance
Flurries

High: 28 °F

Tuesday
Night

Partly Cloudy

Partly
Cloudy

Low: 18 °F

Wednesday

Chance Snow

Chance
Snow

High: 34 °F

Wednesday
Night

Chance Snow

Chance
Snow

Low: 20 °F

Detailed Forecast

  • Tonight Rain, mainly after 5am. Areas of fog. Low around 48. South wind around 15 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
  • Sunday Rain. Areas of fog. High near 52. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
  • Sunday Night Rain. Patchy fog before 3am. Low around 35. South southeast wind 5 to 10 mph becoming west 10 to 15 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
  • Monday Snow likely, mainly before noon. Cloudy, with a high near 35. Breezy, with a west wind 20 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
  • Monday Night A 40 percent chance of snow showers, mainly after midnight. Cloudy, with a low around 19. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.
  • Tuesday Scattered flurries before noon. Partly sunny, with a high near 28.
  • Tuesday Night Partly cloudy, with a low around 18.
  • Wednesday A chance of snow showers. Mostly cloudy, with a high near 34.
  • Wednesday Night A chance of snow showers. Mostly cloudy, with a low around 20.
  • Thanksgiving Day A slight chance of snow showers. Mostly cloudy, with a high near 28.
  • Thursday Night Partly cloudy, with a low around 10.
  • Friday Mostly sunny, with a high near 23.
  • Friday Night Mostly cloudy, with a low around 12.
  • Saturday A slight chance of snow showers. Mostly sunny, with a high near 24.