Oak Lawn, Illinois Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Oak Lawn weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Showers80%0.36″80°68°—
- SundayJul 5Overcast10%—75°66°-5°
- MondayJul 6Overcast——82°67°+7°
- TuesdayJul 7Overcast——85°65°+3°
- WednesdayJul 8Overcast19%—86°66°+1°
- ThursdayJul 9Light Showers34%0.22″81°68°-5°
- FridayJul 10Overcast34%—82°67°+1°
AQI 40 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 8.3 µg/m³, PM10 at 8.8 µg/m³ — typical background levels with no transport signature.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 35. Overcast through the UV peak window (cloud cover ~81%) — afternoon ozone should stay flat.
- Present
- AQI 35
- UV peak
- 2.2 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 5
PM × Wind × Precip
PM2.5 at 8.3 µg/m³, PM10 at 8.8 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.94
- Wind
- light
- Recent rain
- 1h in last 6h
- Pattern
- background
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).








































If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 10:48 PM
- Moonset
- 9:55 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Oak Lawn at a glance
- Today vs. normal: 7°F above the seasonal normal for this latitude
- Last frost: April 26 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 60453
16-Day Forecast — Oak Lawn
- Sat80°68°80%
- Sun75°66°10%
- Mon82°67°4%
- Tue85°65°3%
- Wed86°66°19%
- Thu81°68°34%
- Fri82°67°34%
- Sat86°66°18%
- Sun73°64°9%
- Mon78°62°10%
- Tue80°64°9%
- Wed86°66°29%
- Thu89°69°25%
- Fri88°73°19%
- Sat91°72°24%
- Sun91°73°33%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Oak Lawn
Right now in the garden
Peak growing season
As of July 4, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
SPC Convective Outlook
Storm Prediction Center — Oak Lawn
SPC has placed Oak Lawn in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3NONENo severe risk
Isolated severe storms possible. Limited threat for hail or damaging wind.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.
Microseason · July 1–5
Cicadas claim the afternoon
Annual cicada buzz begins, peaking in the heat of the day.
Day 185 of 365 · Wedge 37 of 72
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | — | — |
| April | lettuce, peas, spinach, radishes | — |
| May | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | tomatoes, peppers, beans, squash | tomatoes, beans, summer squash |
| August | — | tomatoes, beans, summer squash |
| September | fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| October | fall brassicas, garlic (overwinter), carrots | winter squash, tomatoes (last) |
| November | — | — |
| December | — | — |
A year in weather
The year in Oak Lawn tops out in July (~76°F) and dips lowest in January (~24°F), with May wettest at 4.2 inches and January driest at 2.0 inches.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 24° | 2.0″ | 16 |
| February | 27° | 2.1″ | 14 |
| March | 37° | 3.0″ | 16 |
| April | 50° | 3.8″ | 17 |
| May | 59° | 4.2″ | 18 |
| June | 70° | 4.0″ | 17 |
| July | 76° | 2.9″ | 15 |
| August | 75° | 3.0″ | 14 |
| September | 68° | 3.1″ | 14 |
| October | 55° | 3.0″ | 13 |
| November | 40° | 3.2″ | 16 |
| December | 28° | 2.5″ | 15 |
Regional context
Drawing on NOAA NCEI 1991-2020 normals, Oak Lawn's January averages 24°F and July 76°F — 53°F apart — while precipitation totals roughly 36.8 inches over some 184 days.
Rainfall in Oak Lawn stays even across the calendar: May tops out at 4.2 inches over 18.2 rainy days, and January still logs 2.0 inches across 15.7 — a narrow range for Oak Lawn. That lines Oak Lawn up with places like Chicago Ridge, IL, Hometown, IL and Burbank, IL, fed by overlapping storm tracks.
The cool-season window in Oak Lawn starts at mid-April, when nights stop freezing — think kale, peas, spinach, and parsnips. Hold Oak Lawn's tender crops — tomatoes, peppers, basil — until 10-14 days past Oak Lawn's last frost. Oak Lawn's window closes around mid-November as overnight lows return below freezing. In Oak Lawn, low spots run 4-7°F colder than nearby slopes, nudging Oak Lawn's frost dates a week.
Similar climates: Chicago Ridge, IL, Hometown, IL, Burbank, IL, Worth, IL, Evergreen Park, IL.
Frequently asked
- When does it freeze in Oak Lawn?
- In Oak Lawn, expect the last spring frost near mid-April; Oak Lawn's first autumn frost comes around mid-November.
- What is the rainy season in Oak Lawn?
- May is the wettest month in Oak Lawn, about 4.2 inches on average; the year totals roughly 37 inches.
- What is the warmest month in Oak Lawn?
- The warmest stretch in Oak Lawn comes in July, around 76°F on average.
- What is the coldest month in Oak Lawn?
- On average January is the chilliest month in Oak Lawn, about 24°F.
- When can I start a vegetable garden in Oak Lawn?
- Oak Lawn's last frost (mid-April) cues hardy greens; in Oak Lawn, hold heat-lovers two weeks past.
- How many rainy days does Oak Lawn get?
- Oak Lawn averages about 184 days with measurable rain or snow each year.
- What hardiness zone is Oak Lawn?
- Oak Lawn's hardiness zone tracks its winter low; with January near 24°F, check the USDA ZIP map for the exact zone.
- What is the 10-day forecast for Oak Lawn?
- Oak Lawn's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
- Will it rain this week in Oak Lawn?
- See this week's day-by-day rain chances for Oak Lawn in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Oak Lawn?
- Current conditions for Oak Lawn and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Oak Lawn forecast updated?
- The Oak Lawn forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Oak Lawn?
- Today's sunrise and sunset times for Oak Lawn are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
- How accurate is the weather forecast for Oak Lawn?
- The next few days in Oak Lawn's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Oak Lawn, Illinois has a warm-summer humid continental climate: January averages roughly 24°F, July about 76°F, 52°F between them.
Oak Lawn sees close to 37 inches of precipitation annually, falling across some 184 wet days.
At 41.7°N, Oak Lawn's 52°F summer-to-winter swing sets when Oak Lawn's gardens wake and when frost returns.
ZIP codes in Oak Lawn
- 60453