National Weather Service United States Department of Commerce

Heavy rain and mountain snow across the northwestern U.S. this weekend

A Pacific storm system will continue to impact the West Coast through Sunday. Heavy rainfall could lead to flash flooding, river and small stream flooding, as well as mudslides and debris flows, especially over burn scars. At higher elevations, strong winds and heavy snowfall, with accumulations of 1 to 3 feet, could result in hazardous travel through mountain passes.
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Hazardous Weather Conditions

Current Conditions

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Grayslake IL

7 Day Forecast

For More Weather Information:

Chicago, IL Local Forecast Office

Overnight

Chance Freezing Drizzle

Chance
Freezing Drizzle

Low: 29 °F

Sunday

Chance Drizzle

Chance
Drizzle

High: 37 °F

Sunday
Night

Cloudy

Cloudy

Low: 32 °F

Monday

Rain Likely Chance for Measurable Precipitation 60%

Rain
Likely

High: 42 °F

Monday
Night

Rain Likely Chance for Measurable Precipitation 70%

Rain
Likely

Low: 39 °F

Tuesday

Chance Rain Chance for Measurable Precipitation 50%

Chance
Rain

High: 43 °F

Tuesday
Night

Chance Rain/Snow Chance for Measurable Precipitation 50%

Chance
Rain/Snow

Low: 33 °F

Wednesday

Chance Snow

Chance
Snow

High: 37 °F

Wednesday
Night

Chance Snow

Chance
Snow

Low: 26 °F

Detailed Forecast

  • Overnight A chance of freezing drizzle after 5am. Cloudy, with a low around 29. South southwest wind 5 to 10 mph.
  • Sunday A chance of drizzle before noon. Cloudy, with a high near 37. South wind 10 to 15 mph, with gusts as high as 20 mph.
  • Sunday Night Cloudy, with a low around 32. South wind around 15 mph.
  • Monday Rain likely, mainly after noon. Cloudy, with a high near 42. South southeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
  • Monday Night Rain likely. Cloudy, with a low around 39. South wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
  • Tuesday A 50 percent chance of rain. Cloudy, with a high near 43.
  • Tuesday Night A chance of rain and snow before midnight, then a chance of snow. Cloudy, with a low around 33. Chance of precipitation is 50%.
  • Wednesday A chance of snow. Cloudy, with a high near 37. Breezy.
  • Wednesday Night A chance of snow. Mostly cloudy, with a low around 26. Blustery.
  • Christmas Day Partly sunny, with a high near 33. Breezy.
  • Thursday Night A slight chance of snow showers. Mostly cloudy, with a low around 25.
  • Friday A chance of rain and snow showers. Mostly cloudy, with a high near 37.
  • Friday Night A chance of snow showers. Mostly cloudy, with a low around 19.
  • Saturday Partly sunny, with a high near 26.