Today | Weather | Thursday, February 5, 2026
Active Weather Warnings

Weather in Joliet, Illinois

07:34 PM
Now
Cloudy Weather
28° F
Feels Like 21°
Precipitation 1 %
Wind 8 mph
Humidity 89 %
Today
Snowy Weather
Day 32°
Night 27°
Precipitation 55 %
Wind 7 mph

Joliet Weather Forecast Updated

12 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (February 5, 2025)
Partly Sunny with a Chance of Snow

Day

36°

Night

32°

Wind

9 mph

UV Index

1

Precipitation

60 %

Air Quality in Joliet

NOW
55 AQI
Moderate air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 14.38 µg/m³
PM10 15.74 µg/m³
O3 0.030 ppm
NO2 7.6 ppb
SO2 3 ppb
CO 0.20 ppm
NH3 0.18 µg/m³
NO 0 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

Air quality is acceptable; however, for some pollutants, there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.

Show raw pollutant concentrations (µg/m³)
PM2.514.38 µg/m³
PM1015.74 µg/m³
O358.11 µg/m³
NO214.28 µg/m³
SO27.84 µg/m³
CO228.53 µg/m³
NH30.18 µg/m³
NO0 µg/m³

Weather Alerts and Warnings for Joliet

Moderate Expected Observed

Special Weather Statement

Special Weather Statement issued February 5 at 3:27PM CST by NWS Chicago IL
Feb 5, 3:27 PM Feb 5, 9:00 PM
A fast moving weather system will produce a short 3 to 5 hour period
of accumulating snow late tonight into early Friday morning.
While significant snowfall amounts are not expected, a burst of
snow, with rates up to 1 inch per hour, could result in a period
of slick travel due to snow covered roads early Friday morning.
Accordingly, motorists are urged to plan for extra time to reach
their destination Friday morning.
Updated: Feb 5, 7:22 PM Source: NWS Alert