Champaign County, Illinois, United States

Last updated: 6:22 PM CDT · Refresh

28°C

Feels like 33°

Partly Cloudy

▲ 28° / ▼ 22°

Wind

5 mph S

Humidity

87%

Dew Point

25°

Pressure

29.26 inHg

Visibility

10 mi

UV Index

3.6

Cloud Cover

44%

Sunrise

6:04 AM

Sunset

7:49 PM

Drag to pan · double-click to forecast a point

WeatherAI™ Analysis

WeatherAI Analysis: Champaign County is currently partly cloudy at 28°C. Precipitation is likely — peak probability 81% around 3 AM. Atmospheric instability is elevated (CAPE up to 3023 J/kg) — isolated convective development possible. Sunrise: 6:04AM · Sunset: 7:49PM.

35 AQI · Good Dominant: PM2.5 Air Quality

Hourly Forecast · Next 24 Hours

Now

28°

34%

7 PM

28°

45%

8 PM

28°

45%

9 PM

26°

44%

10 PM

25°

44%

11 PM

24°

43%

12 AM

24°

38%

1 AM

24°

48%

2 AM

24°

63%

3 AM

24°

81%

4 AM

23°

68%

5 AM

23°

74%

6 AM

22°

70%

7 AM

22°

69%

8 AM

23°

74%

9 AM

23°

69%

10 AM

24°

56%

11 AM

25°

60%

12 PM

26°

51%

1 PM

27°

43%

2 PM

27°

43%

3 PM

27°

34%

4 PM

27°

43%

5 PM

29°

43%

7-Day Forecast

Tonight

28° 22°

Partly Cloudy with a 44% chance of rain.

Sun

29° 22°

Rain, 81% chance.

Mon

25° 19°

Partly Cloudy with a 38% chance of rain.

Tue

27° 17°

Partly Cloudy with a 55% chance of rain.

Wed

23° 17°

Mostly Cloudy with a 72% chance of rain.

Thu

22° 16°

Partly Cloudy with a 26% chance of rain.

Fri

22° 16°

Clear with a 38% chance of rain.

+ Feels like

TimeTempConditionsPrecipWindHumidity

Now 28° Partly Cloudy 34% 5 mph S 87%

7 PM 28° Mostly Clear 45% 3 mph SSE 90%

8 PM 28° Mostly Clear 45% 4 mph SE 92%

9 PM 26° Mostly Clear 44% 5 mph SE 94%

10 PM 25° Clear 44% 5 mph SSE 95%

11 PM 24° Mostly Clear 43% 6 mph S 94%

12 AM 24° Mostly Clear 38% 6 mph S 94%

1 AM 24° Mostly Clear 48% 6 mph S 92%

2 AM 24° Mostly Cloudy 63% 4 mph SSW 91%

3 AM 24° Mostly Cloudy 81% 4 mph SSW 90%

4 AM 23° Overcast 68% 6 mph SW 90%

5 AM 23° Overcast 74% 6 mph WSW 92%

6 AM 22° Rain 70% 7 mph W 94%

7 AM 22° Rain 69% 8 mph W 96%

8 AM 23° Overcast 74% 8 mph W 95%

9 AM 23° Mostly Cloudy 69% 7 mph W 94%

10 AM 24° Mostly Cloudy 56% 8 mph WSW 93%

11 AM 25° Mostly Cloudy 60% 8 mph W 90%

12 PM 26° Mostly Cloudy 51% 8 mph W 86%

1 PM 27° Mostly Cloudy 43% 9 mph W 83%

2 PM 27° Partly Cloudy 43% 9 mph W 82%

3 PM 27° Partly Cloudy 34% 9 mph WNW 81%

4 PM 27° Partly Cloudy 43% 8 mph WNW 82%

5 PM 29° Partly Cloudy 43% 7 mph WNW 84%

15-Day Forecast

Today

8/15

Partly Cloudy

44%

22°

28°

Sun

8/16

Rain

81%

22°

29°

Mon

8/17

Partly Cloudy

38%

19°

25°

Tue

8/18

Partly Cloudy

55%

17°

27°

Wed

8/19

Mostly Cloudy

72%

17°

23°

Thu

8/20

Partly Cloudy

26%

16°

22°

Fri

8/21

Clear

38%

16°

22°

Sat

8/22

Mostly Clear

21%

18°

24°

Sun

8/23

Drizzle

46%

17°

25°

Mon

8/24

Clear

35%

18°

26°

Tue

8/25

Overcast

36%

18°

29°

Wed

8/26

Drizzle

60%

17°

29°

Thu

8/27

Drizzle

60%

16°

22°

Fri

8/28

Drizzle

60%

16°

23°

Sat

8/29

Drizzle

60%

16°

24°

Good

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

50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today

PM_2.5

Fine particulate matter

Dominant

35 AQI 6.3 µg/m³

O₃

Ground-level ozone

31 AQI 34 ppb

3-Day Outlook

DayAQICategoryO₃PM2.5

Sun 35 Good 31 35

Mon 52 Moderate 31 52

Tue 43 Good 34 43

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 Aug 15, 22:00'Z' · F0 · 130 (13 km CONUS/NA)

Hodograph · kt

0–1 1–3 3–6 6–9 km

Instability

SBCAPE3104 J/kg

MLCAPE1765 J/kg

MUCAPE3104 J/kg

SBCIN-12 J/kg

MLCIN-68 J/kg

Lifted Index-7.1

Kinematics

0–6 km Shear19 kt

0–1 km Shear17 kt

Eff. Shear18 kt

0–1 km SRH119

0–3 km SRH263

Eff. SRH263

Storm Motion321° @ 19 kt

0–1 km EHI2.3

Composite Parameters

Sig. Tornado0.0

STP (eff)0.0

Supercell0.0

K-Index40.2

Thermo & Levels

PWAT2.28 in

0–3 km LR5.6 °C/km

700–500 LR6.1 °C/km

Total Totals48.3

LCL954 hPa

LFC792 hPa

EL132 hPa

Freezing Lvl15,538 ft

Champaign County, Illinois, United States

Alerts