Illinois · NWS LOT office

Oak Lawn, IL weather

It is 59°F and clear at Chicago, Chicago Midway Airport as of Oct 28, 1:00 AM CDT. Overnight: Mostly Cloudy, low near 55°F. Forecast from the National Weather Service, issued Oct 27, 11:35 PM CDT.

Updated Oct 28, 1:22 AM CDT (snapshot)

Current conditions

Temperature

59°F

Clear

Wind

S 6 mph

Humidity 67% · dew point 48°F

Pressure · visibility

30.19 inHg

Visibility 10 mi

Observed at Chicago, Chicago Midway Airport (KMDW), Oct 28, 1:00 AM CDT. Station readings can lag or be missing.

Alerts for this area

No active NWS alerts cover the Oak Lawn forecast zone right now.

Around the NWS LOT forecast area

No active alerts in zones served by the LOT office near Oak Lawn.

From the alert snapshot of Oct 28, 2026, 2:15 AM EDT. No alerts are active anywhere in Illinois.

For official warnings, check weather.gov and your local authorities. OpenForecast repeats National Weather Service alerts and may be delayed or incomplete. Follow instructions from emergency officials.

Next 24 hours

Hourly forecast for Oak Lawn (local time)
TimeTempForecastPrecip. chanceWind
Wed 1 AM59°FMostly Cloudy0%S 5 mph
Wed 2 AM58°FMostly Cloudy0%S 5 mph
Wed 3 AM58°FMostly Cloudy0%S 5 mph
Wed 4 AM57°FPartly Cloudy0%S 5 mph
Wed 5 AM56°FPartly Cloudy0%S 5 mph
Wed 6 AM55°FSunny0% 0 mph
Wed 7 AM55°FSunny0% 0 mph
Wed 8 AM56°FSunny0%S 5 mph
Wed 9 AM58°FSunny0%S 5 mph
Wed 10 AM62°FSunny0%SSW 10 mph
Wed 11 AM66°FSunny0%SSW 10 mph
Wed 12 PM69°FSunny0%SSW 10 mph
Wed 1 PM72°FSunny0%SSW 10 mph
Wed 2 PM73°FSunny0%SSW 15 mph
Wed 3 PM74°FSunny0%SSW 15 mph
Wed 4 PM74°FSunny0%SSW 15 mph
Wed 5 PM73°FSunny0%S 10 mph
Wed 6 PM70°FClear0%S 10 mph
Wed 7 PM67°FMostly Clear0%S 10 mph
Wed 8 PM66°FMostly Clear0%S 10 mph
Wed 9 PM65°FMostly Clear0%S 10 mph
Wed 10 PM64°FMostly Clear0%S 10 mph
Wed 11 PM64°FMostly Clear0%S 10 mph
Thu 12 AM63°FMostly Clear0%SSW 10 mph

Hourly values come from the NWS gridded forecast for the 2.5 km grid square that covers the city's center point. Conditions elsewhere in Oak Lawn can differ.

7-day forecast

Overnight

Low 55°F

Mostly cloudy, with a low around 55. South wind around 5 mph.

Wednesday

High 75°F·Low 61°F

Sunny. High near 75, with temperatures falling to around 73 in the afternoon. South southwest wind 0 to 15 mph, with gusts as high as 25 mph.

Wednesday Night: Mostly clear, with a low around 61. South southwest wind 10 to 15 mph.

Thursday

High 69°F·Low 50°F

A chance of rain showers after 7am. Mostly sunny, with a high near 69. West wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

Thursday Night: A slight chance of rain showers before 7pm. Mostly clear, with a low around 50. North wind around 5 mph. Chance of precipitation is 20%.

Friday

High 65°F·Low 53°F

A slight chance of rain showers after 1pm. Partly sunny, with a high near 65. Chance of precipitation is 20%.

Friday Night: A chance of rain showers before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 53.

Saturday

High 65°F·Low 54°F

A chance of showers and thunderstorms. Cloudy, with a high near 65.

Saturday Night: A slight chance of rain showers. Mostly cloudy, with a low around 54.

Sunday

High 65°F·Low 54°F

A chance of rain showers. Mostly cloudy, with a high near 65.

Sunday Night: A chance of rain showers. Mostly cloudy, with a low around 54.

Monday

High 67°F·Low 53°F

A chance of rain showers. Partly sunny, with a high near 67.

Monday Night: A chance of rain showers. Mostly cloudy, with a low around 53.

Tuesday

High 65°F

Rain showers likely. Mostly cloudy, with a high near 65.

Nearby cities

Larger cities in the area

Other cities in Cook County

See every city we cover in Illinois, or check all active alerts.

About this forecast

Forecast office
Oak Lawn is served by the National Weather Service LOT forecast office, forecast zone ILZ104, county zone ILC031.
Location used
The Census Bureau's internal point for Oak Lawn (41.7139, -87.7528), in Cook County. Population: 56,531 (2024 estimate), number 22 of the 121 Illinois cities on this site.
Radar
Nearest NWS radar: KLOT. View it on radar.weather.gov.

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Sources

  • Forecast, hourly forecast, observations and alerts: National Weather Service API, api.weather.gov/points/41.7139,-87.7528 (forecast issued Oct 27, 11:35 PM CDT).
  • Official forecast page: forecast.weather.gov.
  • City location and population: U.S. Census Bureau, Vintage 2024 population estimates and 2024 Gazetteer files.
  • Snapshot taken Oct 28, 2026. The NWS and Census Bureau do not endorse OpenForecast.

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