Today | Weather | Sunday, October 5, 2025

Active Weather Warnings

Special Weather Statement

Weather in Joliet, Illinois

01:23 AM

Now

66° F

Feels Like 64°

Precipitation 0 %

Wind 7 mph

Humidity 84 %

Today

Day 88°

Night 63°

Precipitation 0 %

Wind 13 mph

UV Index (0 - 11+) 11

Warning: Extreme UV Index Today: 11+

Overexposure to the sun's harmful UV rays can cause sunburn and increase the risk of developing skin cancer, including melanoma. Protect yourself by wearing clothing that covers your skin, sunglasses, and a hat. Apply a broad-spectrum sunscreen with an SPF of 30 or higher every two hours, even on cloudy days. Minimize direct sun exposure during peak hours (10 AM to 4 PM) to reduce the risk.

Joliet Weather Forecast Updated

Last updated on October 05, 2025 12:23 AM

Weather Forecast History

Last Year's Weather on This Day (October 5, 2024)

Day

84°

Night

63°

Wind

14 mph

Precipitation

Air quality in Joliet

NOW

54 AQI

Moderate air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 9.74 µg/m³

PM10 9.77 µg/m³

O₃ 45.39 ppb

NO₂ 4.01 ppb

SO₂ 2.95 ppb

CO 168.00 ppb

PM_2.5 – Fine particles <2.5μm

PM₁₀ – Inhalable particles <10μm

O₃ – Ozone

NO₂ – Nitrogen dioxide

SO₂ – Sulfur dioxide

CO – Carbon monoxide

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Joliet

Moderate Expected Observed

Special Weather Statement

Special Weather Statement issued October 4 at 3:04PM CDT by NWS Chicago IL

Oct 4, 3:04 PM → Oct 5, 3:00 AM

The combination of unseasonably warm temperatures, low relative
humidity, dry vegetation, and gusty south-southwesterly winds
will lead to a heightened threat of brush fire ignition and spread
on Sunday.

Any fires that ignite may become difficult to control. Outdoor
burning is strongly discouraged. Please heed any local burn bans.
Take care to prevent the start of accidental fires when handling
cigarettes or operating vehicles and farm equipment around dry
vegetation or crops.

Additionally, the gusty winds may cause dust from harvesting
activities to be blown around, resulting in localized sharp
visibility reductions. Motorists are thus advised to use caution
when driving near farmland.

Updated: Oct 5, 12:23 AM Source: NWS Alert