Current Conditions

Mundelein, Illinois

60°F16°C
Partly Cloudy

Wind

NE 10 mph17 km/h

Humidity

69%

Cloud Cover

63%

As of Tuesday, September 22, 2026 at 7:20 PM CDT

Today's Outlook

Night

Mostly cloudy, with a low around 60°F15°C. Breezy from the ENE at 11 mph17 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
Partly CloudyHigh 60°F16°CLow 59°F15°CPrecip 0 in0.1 mm4%Cloud 73%Wind ENE 12 mph19 km/hTuesday: Overcast and mild, with a high of 59°F15°C. Breezy from the ENE at 13 mph21 km/h. Dry air. Tuesday Night: Mostly cloudy, with a low around 60°F15°C. Breezy from the ENE at 11 mph17 km/h.
Partly CloudyHigh 63°F17°CLow 57°F14°CPrecip 0 in0.1 mm3%Cloud 63%Wind ENE 10 mph17 km/hWednesday: Mostly cloudy and mild, with a high of 63°F17°C and morning low of 57°F14°C. Breezy from the NE at 11 to 12 mph18 to 20 km/h. Wednesday Night: Mostly cloudy, with a low around 58°F14°C. Breezy from the ENE at 10 to 11 mph15 to 18 km/h.
Partly CloudyHigh 64°F18°CLow 57°F14°CPrecip 0 in0 mmCloud 40%Wind ENE 8 mph12 km/hThursday: Partly cloudy and mild, with a high of 64°F18°C and morning low of 57°F14°C. Breezy from the ENE at 9 mph14 km/h. Thursday Night: Partly cloudy, with a low around 58°F15°C. Breezy from the ENE at 7 to 8 mph11 to 13 km/h.
Partly CloudyHigh 66°F19°CLow 58°F15°CPrecip 0 in0 mmCloud 63%Wind E 6 mph9 km/hFriday: Mostly cloudy and mild, with a high of 66°F19°C and morning low of 58°F15°C. Breezy from the E at 6 to 8 mph10 to 12 km/h. Friday Night: Mostly cloudy, with a low around 59°F15°C. Light wind from the ENE around 6 mph9 km/h.
Partly CloudyHigh 67°F19°CLow 55°F13°CPrecip 0 in0 mmCloud 61%Wind E 6 mph9 km/hSaturday: Mostly cloudy and mild, with a high of 67°F19°C and morning low of 55°F13°C. Light wind from the E around 6 mph9 km/h. Saturday Night: Mostly cloudy, with a low around 57°F14°C. Light wind from the ENE around 6 mph9 km/h.
Partly CloudyHigh 69°F21°CLow 56°F13°CPrecip 0 in0.1 mm5%Cloud 48%Wind NE 5 mph7 km/hSunday: Partly cloudy and warm, with a high of 69°F21°C and morning low of 56°F13°C. Light wind from the NE around 5 mph7 km/h. Sunday Night: Partly cloudy, with a low around 57°F14°C. Light wind from the ENE around 4 mph7 km/h.
ClearHigh 71°F22°CLow 55°F13°CPrecip 0 in0 mmCloud 22%Wind NE 4 mph7 km/hMonday: Mostly clear and warm, with a high of 71°F22°C and morning low of 55°F13°C. Light wind from the NE around 4 mph7 km/h. Monday Night: Partly cloudy, with a low around 56°F13°C. Light wind from the NE around 5 mph8 km/h.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
TuesdaySep 2260°F16°C59°F15°C0 in0.1 mm· 4%73%Partly CloudyENE 12 mph19 km/h
WednesdaySep 2363°F17°C57°F14°C0 in0.1 mm· 3%63%Partly CloudyENE 10 mph17 km/h
ThursdaySep 2464°F18°C57°F14°C0 in0 mm· —40%Partly CloudyENE 8 mph12 km/h
FridaySep 2566°F19°C58°F15°C0 in0 mm· —63%Partly CloudyE 6 mph9 km/h
SaturdaySep 2667°F19°C55°F13°C0 in0 mm· —61%Partly CloudyE 6 mph9 km/h
SundaySep 2769°F21°C56°F13°C0 in0.1 mm· 5%48%Partly CloudyNE 5 mph7 km/h
MondaySep 2871°F22°C55°F13°C0 in0 mm· —22%ClearNE 4 mph7 km/h
TuesdaySep 2971°F22°C56°F13°C0.07 in1.8 mm· 24%67%ShowersSSE 7 mph11 km/h
WednesdaySep 3068°F20°C61°F16°C0.3 in7.6 mm· 36%81%Light RainSSE 9 mph15 km/h
ThursdayOct 167°F20°C58°F15°C0.19 in4.7 mm· 34%65%ShowersWNW 9 mph15 km/h
FridayOct 267°F20°C56°F13°C0.11 in2.8 mm· 19%55%DrizzleNNW 9 mph14 km/h
SaturdayOct 368°F20°C57°F14°C0.09 in2.4 mm· 16%64%DrizzleS 9 mph14 km/h
SundayOct 466°F19°C56°F14°C0.13 in3.3 mm· 19%60%ShowersW 10 mph16 km/h
MondayOct 565°F18°C54°F12°C0.07 in1.8 mm· 16%50%DrizzleW 10 mph15 km/h
TuesdayOct 665°F18°C53°F12°C0.07 in1.9 mm· 16%52%DrizzleW 9 mph15 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: 42.2631°N, 88.0040°W·Elevation: 224m·Timezone: America/Chicago·Population: 31,582