Severe Thunderstorm Watch 12:00 AM

Kane County, Illinois, United States

Last updated: 10:14 PM CDT  ·  Refresh
21°C
Feels like 22°
Rain
▲ 26°  /  ▼ 16°
Wind
6 mph SW
Humidity
95%
Dew Point
19°
Pressure
29.05 inHg
Visibility
8 mi
UV Index
0.0
Cloud Cover
64%
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 rain at 21°C. Precipitation is likely — peak probability 62% around 11 PM. Atmospheric instability is elevated (CAPE up to 1492 J/kg) — isolated convective development possible. Sunrise: 6:08AM · Sunset: 7:44PM.

Alerts

Severe Thunderstorm Watch
Expires 12:00 AM
58 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
21°
59%
11 PM
21°
62%
12 AM
21°
20%
1 AM
19°
4%
2 AM
19°
5%
3 AM
18°
13%
4 AM
17°
17%
5 AM
16°
17%
6 AM
16°
4%
7 AM
16°
5%
8 AM
17°
5%
9 AM
19°
8%
10 AM
21°
8%
11 AM
22°
8%
12 PM
23°
8%
1 PM
26°
9%
2 PM
26°
20%
3 PM
26°
20%
4 PM
26°
10%
5 PM
26°
5%
6 PM
25°
5%
7 PM
24°
3%
8 PM
23°
3%
9 PM
21°
3%
7-Day Forecast
Tonight
26° 16°
Rain, 59% chance.
Sat
26° 15°
Mostly Clear.
Sun
23° 13°
Mostly Clear.
Mon
23° 11°
Partly Cloudy with a 44% chance of rain.
Tue
23° 12°
Rain, 64% chance.
Wed
27° 14°
Thunderstorm, 64% chance.
Thu
27° 17°
Drizzle, 52% chance.
TimeTempConditionsPrecipWindHumidity
Now 21° Rain 59% 6 mph SW 95%
11 PM 21° Partly Cloudy 62% 8 mph WSW 96%
12 AM 21° Mostly Clear 20% 7 mph W 96%
1 AM 19° Mostly Clear 4% 7 mph WNW 96%
2 AM 19° Mostly Clear 5% 7 mph WNW 96%
3 AM 18° Mostly Clear 13% 7 mph WNW 96%
4 AM 17° Partly Cloudy 17% 9 mph NW 96%
5 AM 16° Partly Cloudy 17% 10 mph NW 95%
6 AM 16° Partly Cloudy 4% 10 mph NW 94%
7 AM 16° Partly Cloudy 5% 11 mph NW 93%
8 AM 17° Mostly Clear 5% 11 mph NW 88%
9 AM 19° Mostly Clear 8% 11 mph NW 83%
10 AM 21° Mostly Clear 8% 11 mph NW 79%
11 AM 22° Mostly Clear 8% 11 mph NW 73%
12 PM 23° Clear 8% 12 mph NW 68%
1 PM 26° Clear 9% 12 mph WNW 64%
2 PM 26° Clear 20% 12 mph NW 64%
3 PM 26° Mostly Clear 20% 13 mph NW 63%
4 PM 26° Mostly Clear 10% 13 mph NW 62%
5 PM 26° Mostly Clear 5% 12 mph NW 66%
6 PM 25° Mostly Clear 5% 11 mph WNW 70%
7 PM 24° Mostly Clear 3% 10 mph NW 70%
8 PM 23° Mostly Clear 3% 10 mph NW 73%
9 PM 21° Mostly Clear 3% 9 mph NW 75%
15-Day Forecast
Today
8/21
Rain
59%
16°
26°
Sat
8/22
Mostly Clear
17%
15°
26°
Sun
8/23
Mostly Clear
3%
13°
23°
Mon
8/24
Partly Cloudy
44%
11°
23°
Tue
8/25
Rain
64%
12°
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
Rain
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 Sat Aug 22, 02:00'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
SBCAPE1020 J/kg
MLCAPE1380 J/kg
MUCAPE1580 J/kg
SBCIN-106 J/kg
MLCIN-56 J/kg
Lifted Index-3.5
Kinematics
0–6 km Shear34 kt
0–1 km Shear12 kt
Eff. Shear31 kt
0–1 km SRH60
0–3 km SRH53
Eff. SRH53
Storm Motion341° @ 17 kt
0–1 km EHI0.4
Composite Parameters
Sig. Tornado0.2
STP (eff)0.3
Supercell1.3
K-Index37.4
Thermo & Levels
PWAT1.56 in
0–3 km LR5.3 °C/km
700–500 LR6.3 °C/km
Total Totals51.1
LCL968 hPa
LFC772 hPa
EL227 hPa
Freezing Lvl12,323 ft