Champaign County, Illinois, United States

Last updated: 7:13 PM CDT · Refresh

23°C

Feels like 26°

Mostly Cloudy

▲ 31° / ▼ 19°

Wind

5 mph N

Humidity

96%

Dew Point

22°

Pressure

29.18 inHg

Visibility

10 mi

UV Index

2.2

Cloud Cover

74%

Sunrise

5:28 AM

Sunset

8:25 PM

Drag to pan · double-click to forecast a point

WeatherAI™ Analysis

WeatherAI Analysis: Champaign County is currently mostly cloudy at 23°C. Precipitation is likely — peak probability 82% around 7 PM. Atmospheric instability is elevated (CAPE up to 1213 J/kg) — isolated convective development possible. Sunrise: 5:28AM · Sunset: 8:25PM.

58 AQI · Moderate Dominant: PM2.5 Air Quality

Hourly Forecast · Next 24 Hours

Now

23°

81%

8 PM

24°

47%

9 PM

23°

33%

10 PM

23°

25%

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°

47%

5 PM

27°

53%

6 PM

27°

37%

7-Day Forecast

Tonight

31° 19°

Mostly Cloudy with a 81% chance of rain.

Sun

27° 19°

Mostly Cloudy with a 47% 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° 20°

Heavy Rain, 82% chance.

Fri

26° 18°

Rain, 64% chance.

+ Feels like

TimeTempConditionsPrecipWindHumidity

Now 23° Mostly Cloudy 81% 5 mph N 96%

8 PM 24° Mostly Cloudy 47% 3 mph NNW 95%

9 PM 23° Overcast 33% 4 mph SE 96%

10 PM 23° Overcast 25% 3 mph S 97%

11 PM 23° Overcast 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% 5 mph NW 97%

3 AM 21° Overcast 51% 5 mph NNW 97%

4 AM 21° Overcast 33% 5 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% 5 mph NNW 96%

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

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

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

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

12 PM 24° Mostly Cloudy 40% 6 mph N 81%

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

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

3 PM 26° Mostly Cloudy 57% 7 mph NNW 76%

4 PM 26° Rain 47% 7 mph N 76%

5 PM 27° Rain 53% 8 mph N 79%

6 PM 27° Rain 37% 8 mph N 82%

15-Day Forecast

Today

7/4

Mostly Cloudy

81%

19°

31°

Sun

7/5

Mostly Cloudy

47%

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%

20°

26°

Fri

7/10

Rain

64%

18°

26°

Sat

7/11

Clear

17%

17°

24°

Sun

7/12

Drizzle

43%

14°

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

58 AQI 13.2 µg/m³

O₃

Ground-level ozone

35 AQI 39 ppb

3-Day Outlook

DayAQICategoryO₃PM2.5

Today 58 Moderate 35 58

Mon 41 Good 41 41

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

SBCAPE480 J/kg

MLCAPE1557 J/kg

MUCAPE2170 J/kg

SBCIN-104 J/kg

MLCIN0 J/kg

Lifted Index-1.8

Kinematics

0–6 km Shear20 kt

0–1 km Shear11 kt

Eff. Shear21 kt

0–1 km SRH-34

0–3 km SRH-54

Eff. SRH-54

Storm Motion202° @ 18 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

LCL972 hPa

LFC776 hPa

EL269 hPa

Freezing Lvl13,461 ft

Champaign County, Illinois, United States

Alerts