National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Snow in the Sierra Nevada; Heavy Rainfall in Texas Sunday

Heavy snow is expected in the Sierra Nevada mountain ranges into Saturday causing hazardous travel conditions. Winter Storm Warnings have been issued. Thunderstorms and moderate to heavy rainfall are expected across portions of eastern Texas into Louisiana on Sunday. Read More >

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fair

48°F

9°C

Humidity 50%
Wind Speed W 6 mph
Barometer 30.43 in (1031.4 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 15 Nov 10:51 am CST
Extended Forecast for

Winthrop Harbor IL

  • Today

    Today: Sunny, with a temperature falling to around 44 by 5pm. Northwest wind around 5 mph becoming east southeast in the afternoon.

    High: 49 °F⇓

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 32. West southwest wind around 5 mph.

    Low: 32 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 52. West southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 52 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 35. Southwest wind around 10 mph, with gusts as high as 15 mph.

    Low: 35 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 54. Southwest wind 10 to 15 mph.

    High: 54 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 56.

    High: 56 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 44.

    Low: 44 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 58.

    High: 58 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a temperature falling to around 44 by 5pm. Northwest wind around 5 mph becoming east southeast in the afternoon.
Tonight
Mostly clear, with a low around 32. West southwest wind around 5 mph.
Monday
Sunny, with a high near 52. West southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Monday Night
Mostly clear, with a low around 35. Southwest wind around 10 mph, with gusts as high as 15 mph.
Tuesday
Sunny, with a high near 54. Southwest wind 10 to 15 mph.
Tuesday Night
Mostly clear, with a low around 38.
Wednesday
Mostly sunny, with a high near 56.
Wednesday Night
Mostly cloudy, with a low around 44.
Thursday
Mostly sunny, with a high near 58.
Thursday Night
Partly cloudy, with a low around 42.
Friday
Partly sunny, with a high near 58.
Friday Night
Mostly cloudy, with a low around 48.
Saturday
A chance of rain. Partly sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Winthrop Harbor IL
 42.47°N 87.81°W
Last Update:
9:55 am CST Nov 15, 2026
Forecast Valid:
11am CST Nov 15, 2026-6pm CST Nov 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

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Chance of Precipitation