Today | Weather | Tuesday, April 7, 2026

Active Weather Warnings

Weather in Champaign, Illinois

05:01 AM

Now

32° F

Feels Like 21°

Precipitation 1 %

Wind 12 mph

Humidity 70 %

Today

Day 48°

Night 37°

Precipitation 4 %

Wind 12 mph

UV Index (0 - 11+) 7

Champaign Weather Forecast Updated

Last updated on April 07, 2026 at 3:34 AM

Air Quality in Champaign

NOW

42 AQI

Good air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 3.13 µg/m³

PM₁₀ 3.71 µg/m³

O₃ 0.045 ppm

NO₂ 1.2 ppb

SO₂ 0.5 ppb

CO 0.13 ppm

NH₃ 4.2 µg/m³

NO 0 µg/m³

PM_2.5 – 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 considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)

PM_2.5 – 3.13 µg/m³

PM₁₀ – 3.71 µg/m³

O₃ – 89.07 µg/m³

NO₂ – 2.31 µg/m³

SO₂ – 1.42 µg/m³

CO – 153.65 µg/m³

NH₃ – 4.2 µg/m³

NO – 0 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Champaign

Severe Future Possible

Freeze Watch

Freeze Watch issued April 6 at 11:27AM CDT until April 7 at 9:00AM CDT by NWS Lincoln IL

Apr 7, 1:00 AM → Apr 7, 9:00 AM

WHAT: Sub-freezing temperatures as low as 30 possible.

WHERE: De Witt, McLean, Peoria, Piatt, Tazewell, Woodford,
Champaign, and Vermilion Counties.

WHEN: From late tonight through Tuesday morning.

IMPACTS: Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.

+ Read More

Take steps now to protect tender plants from the cold.

Updated: Apr 6, 2:11 PM Source: NWS Alert

Moderate Expected Likely

Freeze Warning

Freeze Warning issued April 7 at 2:54AM CDT until April 7 at 9:00AM CDT by NWS Lincoln IL

Apr 7, 2:54 AM → Apr 7, 9:00 AM

WHAT: Sub-freezing temperatures as low as 30.

WHERE: De Witt, McLean, Peoria, Piatt, Tazewell, Woodford,
Champaign, Douglas, Edgar, and Vermilion Counties.

WHEN: Until 9 AM CDT this morning.

IMPACTS: Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.