Severe Thunderstorm Watch 9:00 PM

White County, Illinois, United States

Last updated: 8:34 PM CDT  ·  Refresh
27°C
Feels like 30°
Mostly Clear
▲ 33°  /  ▼ 18°
Wind
7 mph NNW
Humidity
76%
Dew Point
21°
Pressure
29.41 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
24%
Sunrise
5:46 AM
Sunset
8:11 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: White County is currently mostly clear at 27°C. Dry conditions are expected through the next 24 hours. Sunrise: 5:46AM · Sunset: 8:11PM.

Alerts

Severe Thunderstorm Watch
Expires 9:00 PM
51 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
27°
11%
9 PM
26°
7%
10 PM
24°
7%
11 PM
23°
7%
12 AM
23°
3%
1 AM
22°
3%
2 AM
21°
3%
3 AM
21°
3%
4 AM
20°
3%
5 AM
18°
3%
6 AM
19°
3%
7 AM
20°
3%
8 AM
22°
3%
9 AM
23°
3%
10 AM
24°
5%
11 AM
25°
5%
12 PM
26°
5%
1 PM
27°
5%
2 PM
27°
5%
3 PM
27°
5%
4 PM
27°
3%
5 PM
27°
3%
6 PM
27°
3%
7 PM
26°
3%
7-Day Forecast
Tonight
33° 18°
Mostly Clear.
Wed
28° 16°
Partly Cloudy.
Thu
27° 14°
Clear.
Fri
23° 16°
Overcast with a 44% chance of rain.
Sat
29° 18°
Mostly Cloudy with a 58% chance of rain.
Sun
34° 22°
Clear with a 51% chance of rain.
Mon
34° 23°
Clear with a 31% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 27° Mostly Clear 11% 7 mph NNW 76%
9 PM 26° Mostly Clear 7% 8 mph NNW 79%
10 PM 24° Clear 7% 8 mph NNW 81%
11 PM 23° Clear 7% 8 mph NNW 83%
12 AM 23° Clear 3% 8 mph NNW 84%
1 AM 22° Clear 3% 7 mph NNW 86%
2 AM 21° Clear 3% 7 mph NNW 88%
3 AM 21° Clear 3% 6 mph NNW 91%
4 AM 20° Clear 3% 6 mph NNW 92%
5 AM 18° Clear 3% 6 mph NNW 92%
6 AM 19° Clear 3% 7 mph N 92%
7 AM 20° Clear 3% 8 mph NNE 88%
8 AM 22° Mostly Clear 3% 9 mph NNE 84%
9 AM 23° Mostly Clear 3% 10 mph NE 78%
10 AM 24° Partly Cloudy 5% 10 mph NE 74%
11 AM 25° Partly Cloudy 5% 11 mph NNE 71%
12 PM 26° Partly Cloudy 5% 11 mph NNE 68%
1 PM 27° Partly Cloudy 5% 12 mph NNE 66%
2 PM 27° Partly Cloudy 5% 12 mph NNE 64%
3 PM 27° Mostly Clear 5% 12 mph NNE 63%
4 PM 27° Mostly Clear 3% 11 mph NNE 64%
5 PM 27° Mostly Clear 3% 11 mph NNE 67%
6 PM 27° Partly Cloudy 3% 10 mph NNE 69%
7 PM 26° Partly Cloudy 3% 10 mph NNE 72%
15-Day Forecast
Today
7/21
Mostly Clear
11%
18°
33°
Wed
7/22
Partly Cloudy
5%
16°
28°
Thu
7/23
Clear
3%
14°
27°
Fri
7/24
Overcast
44%
16°
23°
Sat
7/25
Mostly Cloudy
58%
18°
29°
Sun
7/26
Clear
51%
22°
34°
Mon
7/27
Clear
31%
23°
34°
Tue
7/28
Rain
28%
19°
32°
Wed
7/29
Drizzle
44%
18°
28°
Thu
7/30
Drizzle
44%
16°
29°
Fri
7/31
Clear
36%
16°
29°
Sat
8/1
Drizzle
60%
18°
29°
Sun
8/2
Drizzle
60%
19°
30°
Mon
8/3
Drizzle
60%
19°
31°
Tue
8/4
Drizzle
60%
20°
31°
51
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
51 AQI 9.4 µg/m³
O3
Ground-level ozone
32 AQI 35 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 51 Moderate 32 51
Thu 30 Good 30 13
Fri 35 Good 35 8
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 Tue Jul 21, 23:00'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
SBCAPE16 J/kg
MLCAPE9 J/kg
MUCAPE16 J/kg
SBCIN-145 J/kg
MLCIN0 J/kg
Lifted Index0.1
Kinematics
0–6 km Shear42 kt
0–1 km Shear11 kt
Eff. Shear—
0–1 km SRH-76
0–3 km SRH-99
Eff. SRH—
Storm Motion274° @ 32 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index11.3
Thermo & Levels
PWAT1.46 in
0–3 km LR5.3 °C/km
700–500 LR5.6 °C/km
Total Totals40.3
LCL904 hPa
LFC820 hPa
EL506 hPa
Freezing Lvl16,667 ft