Current Conditions

Waukegan, Illinois

72°F22°C
Light Rain

Wind

E 5 mph8 km/h

Humidity

93%

Cloud Cover

96%

As of Thursday, August 13, 2026 at 7:09 AM CDT

Today's Outlook

Day

Overcast and warm, with a high of 74°F24°C. Breezy from the E at 6 to 8 mph10 to 13 km/h. 79% chance of light rain in the afternoon. Heavy, humid air.

Night

Mostly cloudy, with a low around 73°F23°C. Light wind from the ENE around 5 mph9 km/h. 62% chance of showers in the evening.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
Light RainHigh 74°F24°CLow 72°F22°CPrecip 0.12 in3.1 mm79%Cloud 82%Wind E 6 mph9 km/hThursday: Overcast and warm, with a high of 74°F24°C. Breezy from the E at 6 to 8 mph10 to 13 km/h. 79% chance of light rain in the afternoon. Heavy, humid air. Thursday Night: Mostly cloudy, with a low around 73°F23°C. Light wind from the ENE around 5 mph9 km/h. 62% chance of showers in the evening.
Light RainHigh 74°F23°CLow 72°F22°CPrecip 0.31 in7.8 mm64%Cloud 95%Wind ENE 9 mph14 km/hFriday: Overcast and warm, with a high of 74°F23°C. Breezy from the E at 9 to 10 mph14 to 15 km/h. 64% chance of light rain throughout the day. Humid. Friday Night: Overcast, with a low around 73°F23°C. Breezy from the ENE at 8 to 9 mph14 to 15 km/h. 44% chance of light rain throughout the night.
RainHigh 76°F25°CLow 73°F23°CPrecip 0.43 in11 mm75%Cloud 91%Wind SE 9 mph14 km/hSaturday: Overcast and warm, with a high of 75°F24°C. Breezy from the SE at 10 mph15 km/h. 75% chance of rain throughout the day. Heavy, humid air. Saturday Night: Overcast, with a low around 73°F23°C. Breezy from the ESE at 8 to 9 mph12 to 14 km/h. 29% chance of light rain throughout the night.
Light RainHigh 80°F27°CLow 74°F23°CPrecip 0.29 in7.3 mm55%Cloud 81%Wind WNW 8 mph13 km/hSunday: Overcast and warm, with a high of 80°F27°C and morning low of 74°F23°C. Breezy from the WNW at 8 to 9 mph13 to 15 km/h. 54% chance of light rain throughout the day. Heavy, humid air. Sunday Night: Mostly cloudy, with a low around 74°F23°C. Breezy from the WNW at 9 to 11 mph14 to 17 km/h. 55% chance of light rain throughout the night.
DrizzleHigh 73°F23°CLow 70°F21°CPrecip 0.04 in1.1 mm33%Cloud 50%Wind NNE 9 mph14 km/hMonday: Mostly cloudy and warm, with a high of 73°F23°C. Breezy from the NNE at 9 to 10 mph14 to 16 km/h. 16% chance of drizzle in the morning. Monday Night: Partly cloudy, with a low around 71°F22°C. Breezy from the NE at 9 to 12 mph14 to 20 km/h. 33% chance of drizzle overnight.
Partly CloudyHigh 78°F26°CLow 69°F20°CPrecip 0.01 in0.2 mm9%Cloud 56%Wind SSW 9 mph14 km/hTuesday: Mostly cloudy and warm, with a high of 78°F26°C and morning low of 69°F20°C. Breezy from the SSW at 8 to 11 mph14 to 17 km/h. Tuesday Night: Mostly cloudy, with a low around 69°F21°C. Breezy from the SSW at 9 to 11 mph14 to 18 km/h.
Light RainHigh 75°F24°CLow 71°F22°CPrecip 0.28 in7.2 mm59%Cloud 74%Wind SW 12 mph19 km/hWednesday: Mostly cloudy and warm, with a high of 75°F24°C. Breezy from the SW at 12 mph19 km/h. 59% chance of light rain throughout the day. Humid. Wednesday Night: Mostly cloudy, with a low around 72°F22°C. Breezy from the SW at 11 to 12 mph18 to 20 km/h. 43% chance of light rain throughout the night.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
ThursdayAug 1374°F24°C72°F22°C0.12 in3.1 mm· 79%82%Light RainE 6 mph9 km/h
FridayAug 1474°F23°C72°F22°C0.31 in7.8 mm· 64%95%Light RainENE 9 mph14 km/h
SaturdayAug 1576°F25°C73°F23°C0.43 in11 mm· 75%91%RainSE 9 mph14 km/h
SundayAug 1680°F27°C74°F23°C0.29 in7.3 mm· 55%81%Light RainWNW 8 mph13 km/h
MondayAug 1773°F23°C70°F21°C0.04 in1.1 mm· 33%50%DrizzleNNE 9 mph14 km/h
TuesdayAug 1878°F26°C69°F20°C0.01 in0.2 mm· 9%56%Partly CloudySSW 9 mph14 km/h
WednesdayAug 1975°F24°C71°F22°C0.28 in7.2 mm· 59%74%Light RainSW 12 mph19 km/h
ThursdayAug 2072°F22°C68°F20°C0.09 in2.3 mm· 17%46%ShowersN 10 mph16 km/h
FridayAug 2174°F23°C67°F19°C0.06 in1.6 mm· 12%41%DrizzleE 9 mph14 km/h
SaturdayAug 2275°F24°C68°F20°C0.08 in2.1 mm· 14%37%DrizzleSSW 9 mph14 km/h
SundayAug 2375°F24°C68°F20°C0.03 in0.7 mm· 6%39%ClearS 9 mph15 km/h
MondayAug 2476°F25°C69°F21°C0.04 in0.9 mm· 9%39%ClearS 9 mph15 km/h
TuesdayAug 2576°F25°C70°F21°C0.06 in1.4 mm· 11%46%DrizzleESE 9 mph15 km/h
WednesdayAug 2677°F25°C70°F21°C0.05 in1.3 mm· 11%41%DrizzleENE 10 mph16 km/h
ThursdayAug 2775°F24°C70°F21°C0.03 in0.8 mm· 10%48%DrizzleNE 10 mph16 km/h

Nearby Cities

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

WeatherMesh consistently outperforms legacy models in independent benchmarks. View Benchmarks →

Access WeatherMesh forecasts programmatically via our API. API Documentation →

How to Access Weather Forecasts

PatternExampleDescription
/weather/{country}/{city}//weather/united-states/san-francisco/City forecast (canonical URL)
/weather/{city}//weather/tokyo/Shorthand — redirects to most populous match
/weather/{country}/{region}/{city}//weather/united-states/california/san-francisco/With region — redirects to canonical
/weather/nearby?lat={lat}&lon={lon}/weather/nearby?lat=48.1&lon=11.5Find nearest city by coordinates
/weather/{country}//weather/germany/Country index — all cities by region

Country and city names use lowercase slugs with hyphens (e.g. united-states, san-francisco). Arbitrary city names are supported — if not in our database, we geocode the name and serve the forecast for that location.

For programmatic access, use theWindBorne Forecast APIwhich returns structured JSON for any coordinates worldwide.

Coordinates: 42.3636°N, 87.8448°W·Elevation: 199m·Timezone: America/Chicago·Population: 88,475