Severe Thunderstorm Watch 10:00 PM Severe Thunderstorm Watch 10:00 PM

Kane County, Illinois, United States

Last updated: 9:11 PM CDT  ·  Refresh
21°C
Feels like 22°
Overcast
▲ 26°  /  ▼ 16°
Wind
8 mph SSW
Humidity
94%
Dew Point
19°
Pressure
29.04 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
86%
Sunrise
6:08 AM
Sunset
7:44 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Kane County is currently overcast at 21°C. Precipitation is likely — peak probability 56% around 9 PM. Atmospheric instability is elevated (CAPE up to 1269 J/kg) — isolated convective development possible. Sunrise: 6:08AM · Sunset: 7:44PM.

Alerts

Severe Thunderstorm Watch
Expires 10:00 PM
Severe Thunderstorm Watch
Expires 10:00 PM
58 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
21°
55%
10 PM
20°
41%
11 PM
20°
41%
12 AM
20°
21%
1 AM
19°
5%
2 AM
18°
6%
3 AM
18°
3%
4 AM
18°
4%
5 AM
17°
4%
6 AM
17°
5%
7 AM
17°
5%
8 AM
18°
5%
9 AM
19°
8%
10 AM
21°
8%
11 AM
22°
8%
12 PM
23°
8%
1 PM
26°
9%
2 PM
26°
12%
3 PM
26°
20%
4 PM
27°
10%
5 PM
26°
5%
6 PM
25°
5%
7 PM
24°
3%
8 PM
23°
3%
7-Day Forecast
Tonight
26° 16°
Overcast with a 55% chance of rain.
Sat
27° 15°
Partly Cloudy with a 21% chance of rain.
Sun
23° 12°
Partly Cloudy.
Mon
23° 11°
Mostly Cloudy with a 44% chance of rain.
Tue
23° 13°
Clear with a 64% chance of rain.
Wed
27° 14°
Thunderstorm, 64% chance.
Thu
27° 17°
Drizzle, 52% chance.
TimeTempConditionsPrecipWindHumidity
Now 21° Overcast 55% 8 mph SSW 94%
10 PM 20° Mostly Cloudy 41% 9 mph SSW 95%
11 PM 20° Mostly Cloudy 41% 7 mph WSW 96%
12 AM 20° Mostly Cloudy 21% 7 mph W 96%
1 AM 19° Mostly Clear 5% 8 mph WNW 96%
2 AM 18° Mostly Clear 6% 9 mph WNW 96%
3 AM 18° Partly Cloudy 3% 9 mph NW 96%
4 AM 18° Partly Cloudy 4% 9 mph NW 96%
5 AM 17° Partly Cloudy 4% 9 mph NW 95%
6 AM 17° Partly Cloudy 5% 10 mph NW 94%
7 AM 17° Partly Cloudy 5% 10 mph NW 93%
8 AM 18° Partly Cloudy 5% 11 mph NNW 88%
9 AM 19° Haze 8% 11 mph NW 85%
10 AM 21° Partly Cloudy 8% 11 mph NW 81%
11 AM 22° Partly Cloudy 8% 11 mph NW 75%
12 PM 23° Partly Cloudy 8% 12 mph NW 70%
1 PM 26° Partly Cloudy 9% 12 mph NW 66%
2 PM 26° Mostly Clear 12% 12 mph NW 65%
3 PM 26° Mostly Clear 20% 12 mph NW 64%
4 PM 27° Mostly Clear 10% 12 mph NW 63%
5 PM 26° Mostly Clear 5% 11 mph NW 66%
6 PM 25° Mostly Clear 5% 10 mph NW 70%
7 PM 24° Mostly Clear 3% 9 mph NW 70%
8 PM 23° Partly Cloudy 3% 9 mph NW 71%
15-Day Forecast
Today
8/21
Overcast
55%
16°
26°
Sat
8/22
Partly Cloudy
21%
15°
27°
Sun
8/23
Partly Cloudy
3%
12°
23°
Mon
8/24
Mostly Cloudy
44%
11°
23°
Tue
8/25
Clear
64%
13°
23°
Wed
8/26
Thunderstorm
64%
14°
27°
Thu
8/27
Drizzle
52%
17°
27°
Fri
8/28
Clear
17%
17°
27°
Sat
8/29
Drizzle
68%
17°
27°
Sun
8/30
Rain
68%
19°
27°
Mon
8/31
Drizzle
60%
19°
30°
Tue
9/1
Drizzle
60%
18°
30°
Wed
9/2
Drizzle
60%
18°
27°
Thu
9/3
Drizzle
60%
17°
26°
Fri
9/4
Drizzle
60%
17°
27°
58
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
58 AQI 13.0 µg/m³
O3
Ground-level ozone
32 AQI 36 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 58 Moderate 32 58
Sun 27 Good 27 24
Mon 21 Good 21 12
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 Fri Aug 21, 23:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE941 J/kg
MLCAPE1668 J/kg
MUCAPE2043 J/kg
SBCIN-93 J/kg
MLCIN-28 J/kg
Lifted Index-3.0
Kinematics
0–6 km Shear35 kt
0–1 km Shear18 kt
Eff. Shear33 kt
0–1 km SRH118
0–3 km SRH166
Eff. SRH166
Storm Motion337° @ 18 kt
0–1 km EHI0.7
Composite Parameters
Sig. Tornado0.4
STP (eff)1.1
Supercell5.8
K-Index35.6
Thermo & Levels
PWAT1.73 in
0–3 km LR5.2 °C/km
700–500 LR6.3 °C/km
Total Totals52.6
LCL965 hPa
LFC807 hPa
EL227 hPa
Freezing Lvl12,133 ft