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

Walworth County, Wisconsin, United States

Last updated: 9:10 PM CDT  ·  Refresh
20°C
Feels like 21°
Partly Cloudy
▲ 22°  /  ▼ 14°
Wind
6 mph SSW
Humidity
96%
Dew Point
19°
Pressure
28.90 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
56%
Sunrise
6:07 AM
Sunset
7:46 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Walworth County is currently partly cloudy at 20°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1080 J/kg) — isolated convective development possible. Sunrise: 6:07AM · Sunset: 7:46PM.

Alerts

Severe Thunderstorm Watch
Expires 10:00 PM
Severe Thunderstorm Watch
Expires 10:00 PM
55 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
20°
32%
10 PM
18°
26%
11 PM
18°
27%
12 AM
18°
18%
1 AM
18°
5%
2 AM
17°
5%
3 AM
17°
6%
4 AM
17°
8%
5 AM
15°
8%
6 AM
14°
5%
7 AM
14°
5%
8 AM
16°
10%
9 AM
18°
13%
10 AM
19°
22%
11 AM
21°
23%
12 PM
22°
26%
1 PM
24°
37%
2 PM
24°
26%
3 PM
24°
27%
4 PM
26°
27%
5 PM
26°
12%
6 PM
25°
13%
7 PM
24°
3%
8 PM
23°
3%
7-Day Forecast
Tonight
22° 14°
Partly Cloudy with a 32% chance of rain.
Sat
26° 14°
Mostly Clear with a 27% chance of rain.
Sun
22° 10°
Partly Cloudy.
Mon
22° 8°
Partly Cloudy with a 44% chance of rain.
Tue
24° 12°
Clear with a 64% chance of rain.
Wed
27° 14°
Rain, 64% chance.
Thu
27° 16°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 20° Partly Cloudy 32% 6 mph SSW 96%
10 PM 18° Mostly Clear 26% 6 mph SW 96%
11 PM 18° Mostly Clear 27% 7 mph WSW 96%
12 AM 18° Mostly Clear 18% 7 mph W 96%
1 AM 18° Mostly Clear 5% 8 mph WNW 96%
2 AM 17° Mostly Clear 5% 8 mph NW 96%
3 AM 17° Partly Cloudy 6% 8 mph NW 96%
4 AM 17° Partly Cloudy 8% 8 mph NW 96%
5 AM 15° Partly Cloudy 8% 8 mph NW 96%
6 AM 14° Partly Cloudy 5% 8 mph NW 95%
7 AM 14° Partly Cloudy 5% 8 mph NW 94%
8 AM 16° Mostly Clear 10% 9 mph NW 88%
9 AM 18° Mostly Clear 13% 9 mph NW 82%
10 AM 19° Mostly Clear 22% 10 mph NW 77%
11 AM 21° Mostly Clear 23% 10 mph NW 72%
12 PM 22° Mostly Clear 26% 12 mph NW 66%
1 PM 24° Mostly Clear 37% 13 mph NW 61%
2 PM 24° Mostly Clear 26% 13 mph NW 59%
3 PM 24° Mostly Clear 27% 13 mph NW 56%
4 PM 26° Mostly Clear 27% 13 mph NW 55%
5 PM 26° Mostly Clear 12% 12 mph NW 59%
6 PM 25° Mostly Clear 13% 11 mph NW 62%
7 PM 24° Mostly Clear 3% 10 mph NW 65%
8 PM 23° Mostly Clear 3% 10 mph NW 67%
15-Day Forecast
Today
8/21
Partly Cloudy
32%
14°
22°
Sat
8/22
Mostly Clear
27%
14°
26°
Sun
8/23
Partly Cloudy
3%
10°
22°
Mon
8/24
Partly Cloudy
44%
8°
22°
Tue
8/25
Clear
64%
12°
24°
Wed
8/26
Rain
64%
14°
27°
Thu
8/27
Clear
17%
16°
27°
Fri
8/28
Clear
17%
16°
27°
Sat
8/29
Drizzle
68%
16°
27°
Sun
8/30
Rain
90%
18°
29°
Mon
8/31
Drizzle
60%
18°
30°
Tue
9/1
Drizzle
60%
17°
29°
Wed
9/2
Drizzle
60%
17°
26°
Thu
9/3
Drizzle
60%
16°
26°
Fri
9/4
Drizzle
60%
16°
26°
55
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
55 AQI 11.1 µg/m³
O3
Ground-level ozone
33 AQI 36 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 55 Moderate 33 55
Sun 31 Good 31 20
Mon 26 Good 26 13
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 60 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE904 J/kg
MLCAPE1590 J/kg
MUCAPE1926 J/kg
SBCIN-104 J/kg
MLCIN-39 J/kg
Lifted Index-2.8
Kinematics
0–6 km Shear32 kt
0–1 km Shear16 kt
Eff. Shear29 kt
0–1 km SRH107
0–3 km SRH125
Eff. SRH125
Storm Motion334° @ 20 kt
0–1 km EHI0.6
Composite Parameters
Sig. Tornado0.4
STP (eff)0.7
Supercell3.6
K-Index31.8
Thermo & Levels
PWAT1.40 in
0–3 km LR5.2 °C/km
700–500 LR6.1 °C/km
Total Totals50.5
LCL969 hPa
LFC793 hPa
EL240 hPa
Freezing Lvl12,346 ft