Champaign, Illinois

Last updated: 12:04 AM CDT  ·  Refresh
23°C
Feels like 27°
Mostly Clear
▲ 31°  /  ▼ 20°
Wind
3 mph SW
Humidity
93%
Dew Point
22°
Pressure
29.22 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
21%
Sunrise
5:57 AM
Sunset
7:58 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Champaign is currently mostly clear at 23°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2643 J/kg) — isolated convective development possible. Sunrise: 5:57AM · Sunset: 7:58PM.

Alerts

No active alerts for this location.
54 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
23°
4%
1 AM
22°
4%
2 AM
22°
4%
3 AM
22°
4%
4 AM
21°
3%
5 AM
21°
3%
6 AM
21°
3%
7 AM
21°
3%
8 AM
22°
4%
9 AM
24°
5%
10 AM
26°
5%
11 AM
27°
5%
12 PM
28°
5%
1 PM
30°
8%
2 PM
30°
5%
3 PM
31°
5%
4 PM
31°
5%
5 PM
31°
5%
6 PM
30°
3%
7 PM
29°
3%
8 PM
28°
3%
9 PM
26°
3%
10 PM
24°
5%
11 PM
23°
5%
7-Day Forecast
Today
31° 20°
Mostly Clear.
Sun
32° 20°
Mostly Clear.
Mon
32° 22°
Mostly Cloudy with a 72% chance of rain.
Tue
32° 22°
Mostly Clear with a 75% chance of rain.
Wed
29° 19°
Rain, 90% chance.
Thu
27° 17°
Rain, 70% chance.
Fri
28° 16°
Heavy Rain, 82% chance.
TimeTempConditionsPrecipWindHumidity
Now 23° Mostly Clear 4% 3 mph SW 93%
1 AM 22° Partly Cloudy 4% 6 mph SW 94%
2 AM 22° Partly Cloudy 4% 6 mph SW 95%
3 AM 22° Partly Cloudy 4% 6 mph SW 95%
4 AM 21° Partly Cloudy 3% 6 mph SW 96%
5 AM 21° Mostly Clear 3% 6 mph SW 95%
6 AM 21° Partly Cloudy 3% 6 mph WSW 95%
7 AM 21° Partly Cloudy 3% 5 mph WSW 95%
8 AM 22° Mostly Clear 4% 7 mph W 91%
9 AM 24° Mostly Clear 5% 7 mph W 88%
10 AM 26° Mostly Clear 5% 8 mph W 86%
11 AM 27° Mostly Clear 5% 8 mph W 82%
12 PM 28° Mostly Clear 5% 8 mph W 78%
1 PM 30° Mostly Clear 8% 8 mph W 74%
2 PM 30° Mostly Clear 5% 8 mph W 72%
3 PM 31° Mostly Clear 5% 8 mph W 70%
4 PM 31° Mostly Clear 5% 7 mph W 68%
5 PM 31° Mostly Clear 5% 6 mph WNW 72%
6 PM 30° Mostly Clear 3% 5 mph WNW 75%
7 PM 29° Clear 3% 5 mph NW 78%
8 PM 28° Clear 3% 4 mph NW 80%
9 PM 26° Clear 3% 4 mph NNW 81%
10 PM 24° Clear 5% 4 mph N 83%
11 PM 23° Mostly Clear 5% 4 mph NE 84%
15-Day Forecast
Today
8/8
Mostly Clear
5%
20°
31°
Sun
8/9
Mostly Clear
6%
20°
32°
Mon
8/10
Mostly Cloudy
72%
22°
32°
Tue
8/11
Mostly Clear
75%
22°
32°
Wed
8/12
Rain
90%
19°
29°
Thu
8/13
Rain
70%
17°
27°
Fri
8/14
Heavy Rain
82%
16°
28°
Sat
8/15
Rain
82%
19°
29°
Sun
8/16
Drizzle
44%
16°
26°
Mon
8/17
Drizzle
51%
15°
26°
Tue
8/18
Drizzle
90%
16°
27°
Wed
8/19
Drizzle
60%
17°
28°
Thu
8/20
Drizzle
60%
18°
29°
Fri
8/21
Drizzle
60%
18°
29°
Sat
8/22
Drizzle
60%
18°
30°
54
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
PM2.5
Fine particulate matter
Dominant
54 AQI 10.6 µg/m³
O3
Ground-level ozone
37 AQI 41 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 54 Moderate 37 54
Sun 48 Good 36 48
Mon 47 Good 32 47
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. PM2.5 (fine particles) is reported in µg/m³ and ozone (O3) in ppb. Forecast source: NWS NAQFC.

1000850700500400300250200150100 -40-30-20-10010203040 0.41247101624 LCLLFCEL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Sat Aug 8, 03:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1275 J/kg
MLCAPE1661 J/kg
MUCAPE1972 J/kg
SBCIN-204 J/kg
MLCIN0 J/kg
Lifted Index-5.8
Kinematics
0–6 km Shear34 kt
0–1 km Shear8 kt
Eff. Shear31 kt
0–1 km SRH19
0–3 km SRH-31
Eff. SRH-31
Storm Motion254° @ 24 kt
0–1 km EHI0.2
Composite Parameters
Sig. Tornado0.2
STP (eff)0.0
Supercell0.0
K-Index19.8
Thermo & Levels
PWAT1.22 in
0–3 km LR4.4 °C/km
700–500 LR7.4 °C/km
Total Totals49.1
LCL974 hPa
LFC689 hPa
EL247 hPa
Freezing Lvl14,324 ft