Champaign, Illinois

Last updated: 7:11 PM CDT · Refresh

23°C

Feels like 26°

Mostly Cloudy

▲ 31° / ▼ 19°

Wind

6 mph NW

Humidity

96%

Dew Point

22°

Pressure

29.16 inHg

Visibility

10 mi

UV Index

2.2

Cloud Cover

74%

Sunrise

5:29 AM

Sunset

8:25 PM

Drag to pan · double-click to forecast a point

WeatherAI™ Analysis

WeatherAI Analysis: Champaign is currently mostly cloudy at 23°C. Precipitation is likely — peak probability 82% around 7 PM. Atmospheric instability is elevated (CAPE up to 1209 J/kg) — isolated convective development possible. Sunrise: 5:29AM · Sunset: 8:25PM.

59 AQI · Moderate Dominant: PM2.5 Air Quality

Hourly Forecast · Next 24 Hours

Now

23°

81%

8 PM

24°

47%

9 PM

23°

40%

10 PM

23°

21%

11 PM

23°

25%

12 AM

22°

35%

1 AM

21°

23%

2 AM

21°

27%

3 AM

21°

51%

4 AM

21°

33%

5 AM

19°

34%

6 AM

19°

25%

7 AM

19°

26%

8 AM

20°

37%

9 AM

22°

37%

10 AM

23°

46%

11 AM

23°

47%

12 PM

24°

40%

1 PM

25°

47%

2 PM

25°

52%

3 PM

26°

57%

4 PM

26°

57%

5 PM

27°

64%

6 PM

27°

53%

7-Day Forecast

Tonight

31° 19°

Mostly Cloudy with a 81% chance of rain.

Sun

27° 19°

Mostly Cloudy with a 48% chance of rain.

Mon

28° 17°

Partly Cloudy with a 26% chance of rain.

Tue

28° 16°

Partly Cloudy.

Wed

27° 18°

Mostly Cloudy.

Thu

26° 21°

Heavy Rain, 82% chance.

Fri

26° 18°

Rain, 82% chance.

+ Feels like

TimeTempConditionsPrecipWindHumidity

Now 23° Mostly Cloudy 81% 6 mph NW 96%

8 PM 24° Overcast 47% 3 mph WNW 95%

9 PM 23° Overcast 40% 4 mph SE 96%

10 PM 23° Overcast 21% 3 mph SSE 97%

11 PM 23° Mostly Cloudy 25% 3 mph WSW 97%

12 AM 22° Mostly Cloudy 35% 4 mph WNW 98%

1 AM 21° Mostly Cloudy 23% 5 mph WNW 98%

2 AM 21° Mostly Cloudy 27% 4 mph NW 97%

3 AM 21° Overcast 51% 5 mph NNW 97%

4 AM 21° Overcast 33% 4 mph NNW 97%

5 AM 19° Mostly Cloudy 34% 4 mph NNW 97%

6 AM 19° Mostly Cloudy 25% 4 mph NNW 97%

7 AM 19° Haze 26% 4 mph NNW 96%

8 AM 20° Mostly Cloudy 37% 5 mph N 92%

9 AM 22° Mostly Cloudy 37% 6 mph N 89%

10 AM 23° Mostly Cloudy 46% 6 mph N 86%

11 AM 23° Mostly Cloudy 47% 6 mph NNW 83%

12 PM 24° Mostly Cloudy 40% 6 mph N 80%

1 PM 25° Mostly Cloudy 47% 6 mph N 78%

2 PM 25° Mostly Cloudy 52% 6 mph N 77%

3 PM 26° Mostly Cloudy 57% 7 mph NNW 75%

4 PM 26° Rain 57% 7 mph N 75%

5 PM 27° Rain 64% 8 mph N 79%

6 PM 27° Rain 53% 8 mph N 82%

15-Day Forecast

Today

7/4

Mostly Cloudy

81%

19°

31°

Sun

7/5

Mostly Cloudy

48%

19°

27°

Mon

7/6

Partly Cloudy

26%

17°

28°

Tue

7/7

Partly Cloudy

14%

16°

28°

Wed

7/8

Mostly Cloudy

16%

18°

27°

Thu

7/9

Heavy Rain

82%

21°

26°

Fri

7/10

Rain

82%

18°

26°

Sat

7/11

Clear

17%

17°

24°

Sun

7/12

Drizzle

43%

15°

24°

Mon

7/13

Mostly Clear

44%

16°

27°

Tue

7/14

Drizzle

60%

17°

28°

Wed

7/15

Drizzle

60%

17°

28°

Thu

7/16

Drizzle

60%

17°

24°

Fri

7/17

Drizzle

60%

17°

24°

Sat

7/18

Drizzle

60%

17°

24°

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

35 AQI 39 ppb

3-Day Outlook

DayAQICategoryO₃PM2.5

Today 59 Moderate 35 59

Mon 42 Good 42 42

Tue 58 Moderate 36 58

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 Sat Jul 4, 22:00'Z' · F0 · 130 (13 km CONUS/NA)

Hodograph · kt

0–1 1–3 3–6 6–9 km

Instability

SBCAPE413 J/kg

MLCAPE1533 J/kg

MUCAPE2170 J/kg

SBCIN-115 J/kg

MLCIN0 J/kg

Lifted Index-1.5

Kinematics

0–6 km Shear18 kt

0–1 km Shear9 kt

Eff. Shear19 kt

0–1 km SRH-24

0–3 km SRH-42

Eff. SRH-42

Storm Motion200° @ 16 kt

0–1 km EHI-0.1

Composite Parameters

Sig. Tornado0.0

STP (eff)0.0

Supercell0.0

K-Index40.0

Thermo & Levels

PWAT2.33 in

0–3 km LR5.5 °C/km

700–500 LR4.8 °C/km

Total Totals47.8

LCL969 hPa

LFC771 hPa

EL302 hPa

Freezing Lvl13,451 ft

Champaign, Illinois

Alerts