Weather Alert
Waukegan Weather Warning NWS WEATHER ALERT FOR THE WAUKEGAN, IL AREA - FLOOD WATCH Issued: 522 AM CDT Fri Oct 2 2026 Waukegan Weather Warning

World > North America > United States > Illinois > Waukegan   Waukegan, IL Weather City of Waukegan, IL

Waukegan, IL Weather Forecast

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Waukegan, IL Weather Forecast

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Waukegan IL weather - Clear - 51°F
Clear
51°F
Updated 7:05 am
Feels Like 45°F
Humidity 79%
Wind NNW 8 mph
Barometer  30.15 in
Dew Point 45°F
Waukegan IL weather - Clear - 11°C
Clear
11°C
Updated 7:05 am
Feels Like 7°C
Humidity 79%
Wind NNW 13 km/h
Barometer  102.1 kPa
Dew Point 7°C
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Waukegan Weather Forecast

TODAY TONIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT
Waukegan, IL Weather - Today Partly Cloudy Waukegan, IL Weather - Tonight Mostly Clear Waukegan, IL Weather - Saturday Sunny Waukegan, IL Weather - Saturday Night Mostly Clear Waukegan, IL Weather - Sunday Sunny Waukegan, IL Weather - Sunday Night Clear Waukegan, IL Weather - Monday Sunny Waukegan, IL Weather - Monday Night Clear Waukegan, IL Weather - Tuesday Sunny Waukegan, IL Weather - Tuesday Night Mostly Clear Waukegan, IL Weather - Wednesday Partly Cloudy Waukegan, IL Weather - Wednesday Night Partly Cloudy
Partly Cloudy Mostly Clear Sunny Mostly Clear Sunny Clear Sunny Clear Sunny Mostly Clear Partly Cloudy Partly Cloudy
Hi: 61°FHi: 16°C
 Lo: 45°FLo: 7°C Hi: 65°FHi: 18°C
 Lo: 49°FLo: 9°C Hi: 70°FHi: 21°C
 Lo: 41°FLo: 5°C Hi: 61°FHi: 16°C
 Lo: 41°FLo: 5°C Hi: 65°FHi: 18°C
 Lo: 49°FLo: 9°C Hi: 71°FHi: 22°C
 Lo: 49°FLo: 9°C
POP = Probability of Precipitation.
Weather Outlook Updated: 521 AM CDT Fri Oct 02 2026 Waukegan, IL Weather - WeatherWorld.com

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Issued: 611 AM CDT Fri Oct 2 2026

Key Messages

  • Tonight will be the coldest night of the season so far with lows in low to mid 40s (perhaps a few spots in the upper 30s) away from the Chicago urban heat island.
  • Extended period of dry weather with seasonable temperatures though much of next week.

Discussion

... Issued at 214 AM CDT Fri Oct 2 2026

Rain is gradually ending from northwest to southeast early this morning as the main trough responsible for our extended period of rain exits eastward. Precip is now confined to primarily east...