Champaign, Illinois

Last updated: 12:07 AM CDT · Refresh

25°C

Feels like 26°

Clear

▲ 31° / ▼ 20°

Wind

7 mph SSW

Humidity

69%

Dew Point

19°

Pressure

29.20 inHg

Visibility

10 mi

UV Index

0.0

Cloud Cover

Sunrise

6:20 AM

Sunset

7:24 PM

Drag to pan · double-click to forecast a point

WeatherAI™ Analysis

WeatherAI Analysis: Champaign is currently clear at 25°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2451 J/kg) — isolated convective development possible. Sunrise: 6:20AM · Sunset: 7:24PM.

59 AQI · Moderate Dominant: PM2.5 Air Quality

Hourly Forecast · Next 24 Hours

Now

25°

1 AM

25°

2 AM

24°

3 AM

24°

4 AM

23°

5 AM

22°

6 AM

22°

7 AM

22°

8 AM

24°

9 AM

27°

10 AM

28°

11 AM

30°

12 PM

32°

1 PM

34°

2 PM

35°

3 PM

36°

4 PM

36°

5 PM

36°

6 PM

34°

7 PM

33°

8 PM

32°

9 PM

29°

10 PM

29°

11 PM

27°

7-Day Forecast

Today

31° 20°

Clear.

Tue

36° 22°

Clear.

Wed

37° 22°

Clear.

Thu

37° 22°

Partly Cloudy with a 43% chance of rain.

Fri

37° 22°

Fog with a 55% chance of rain.

Sat

37° 22°

Thunderstorm, 60% chance.

Sun

34° 20°

Clear with a 35% chance of rain.

+ Feels like

TimeTempConditionsPrecipWindHumidity

Now 25° Clear 5% 7 mph SSW 69%

1 AM 25° Clear 5% 8 mph SSW 67%

2 AM 24° Mostly Clear 5% 8 mph SSW 69%

3 AM 24° Mostly Clear 5% 8 mph SW 71%

4 AM 23° Mostly Clear 3% 8 mph SW 72%

5 AM 22° Mostly Clear 3% 8 mph SW 75%

6 AM 22° Clear 3% 8 mph SW 77%

7 AM 22° Clear 3% 8 mph SW 78%

8 AM 24° Clear 3% 9 mph SW 74%

9 AM 27° Clear 3% 10 mph WSW 69%

10 AM 28° Clear 3% 9 mph WSW 66%

11 AM 30° Clear 3% 8 mph WSW 62%

12 PM 32° Clear 3% 8 mph WSW 58%

1 PM 34° Clear 3% 8 mph WSW 55%

2 PM 35° Clear 3% 8 mph WSW 52%

3 PM 36° Mostly Clear 3% 8 mph WSW 50%

4 PM 36° Mostly Clear 3% 7 mph WSW 50%

5 PM 36° Clear 3% 7 mph SW 53%

6 PM 34° Clear 3% 6 mph SW 59%

7 PM 33° Clear 3% 6 mph SSW 62%

8 PM 32° Clear 3% 6 mph SSW 64%

9 PM 29° Clear 3% 6 mph SSW 66%

10 PM 29° Clear 3% 6 mph SSW 68%

11 PM 27° Clear 3% 6 mph SSW 69%

15-Day Forecast

Today

8/31

Clear

20°

31°

Tue

9/1

Clear

22°

36°

Wed

9/2

Clear

22°

37°

Thu

9/3

Partly Cloudy

43%

22°

37°

Fri

9/4

Fog

55%

22°

37°

Sat

9/5

Thunderstorm

60%

22°

37°

Sun

9/6

Clear

35%

20°

34°

Mon

9/7

Clear

19%

17°

33°

Tue

9/8

Drizzle

60%

18°

34°

Wed

9/9

Drizzle

60%

18°

36°

Thu

9/10

Drizzle

60%

16°

33°

Fri

9/11

Drizzle

60%

19°

32°

Sat

9/12

Drizzle

60%

17°

30°

Sun

9/13

Drizzle

60%

16°

29°

Mon

9/14

Drizzle

60%

17°

29°

Moderate

U.S. Air Quality Index · Dominant: PM2.5

50 100 150 200

Air quality is acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Pollutant Breakdown · Today

PM_2.5

Fine particulate matter

Dominant

59 AQI 13.4 µg/m³

O₃

Ground-level ozone

42 AQI 45 ppb

3-Day Outlook

DayAQICategoryO₃PM2.5

Today 59 Moderate 42 59

Wed 62 Moderate 46 62

Thu 55 Moderate 43 55

About the Air Quality Index

0–50 Good

51–100 Moderate

101–150 Unhealthy for Sensitive Groups

151–200 Unhealthy

201–300 Very Unhealthy

301–500 Hazardous

The U.S. AQI runs 0–500. The overall value equals the highest individual pollutant sub-index, and the dominant pollutant is the one driving it. PM_2.5 (fine particles) is reported in µg/m³ and ozone (O₃) in ppb. Forecast source: NWS NAQFC.

Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio

RAP

Valid Tue Sep 1, 03:00'Z' · F0 · 130 (13 km CONUS/NA)

Hodograph · kt

0–1 1–3 3–6 6–9 km

Instability

SBCAPE3 J/kg

MLCAPE14 J/kg

MUCAPE248 J/kg

SBCIN-841 J/kg

MLCIN0 J/kg

Lifted Index0.0

Kinematics

0–6 km Shear22 kt

0–1 km Shear14 kt

Eff. Shear21 kt

0–1 km SRH89

0–3 km SRH99

Eff. SRH20

Storm Motion331° @ 15 kt

0–1 km EHI0.0

Composite Parameters

Sig. Tornado0.0

STP (eff)0.0

Supercell0.1

K-Index32.4

Thermo & Levels

PWAT1.51 in

0–3 km LR4.1 °C/km

700–500 LR6.9 °C/km

Total Totals45.3

LCL907 hPa

LFC539 hPa

EL503 hPa

Freezing Lvl15,499 ft

Champaign, Illinois

Alerts