Severe Thunderstorm Watch 5:00 AM Severe Thunderstorm Watch 5:00 AM

Sioux County, Iowa, United States

Last updated: 3:01 AM CDT  ·  Refresh
19°C
Feels like 19°
Mostly Cloudy
▲ 33°  /  ▼ 19°
Wind
10 mph ENE
Humidity
94%
Dew Point
19°
Pressure
28.45 inHg
Visibility
2 mi
UV Index
0.0
Cloud Cover
83%
Sunrise
6:50 AM
Sunset
7:57 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Sioux County is currently mostly cloudy at 19°C. Precipitation is likely — peak probability 68% around 3 AM. Atmospheric instability is elevated (CAPE up to 1905 J/kg) — isolated convective development possible. Sunrise: 6:50AM · Sunset: 7:57PM.

Alerts

Severe Thunderstorm Watch
Expires 5:00 AM
Severe Thunderstorm Watch
Expires 5:00 AM
44 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
19°
68%
4 AM
19°
32%
5 AM
19°
18%
6 AM
17°
20%
7 AM
17°
18%
8 AM
18°
21%
9 AM
20°
31%
10 AM
21°
23%
11 AM
23°
11%
12 PM
26°
12%
1 PM
28°
12%
2 PM
31°
12%
3 PM
32°
12%
4 PM
33°
21%
5 PM
32°
21%
6 PM
33°
18%
7 PM
32°
18%
8 PM
30°
30%
9 PM
28°
30%
10 PM
24°
30%
11 PM
24°
35%
12 AM
24°
35%
1 AM
23°
33%
2 AM
22°
36%
7-Day Forecast
Today
33° 19°
Mostly Clear with a 68% chance of rain.
Thu
38° 19°
Mostly Clear with a 36% chance of rain.
Fri
38° 21°
Mostly Clear with a 28% chance of rain.
Sat
37° 19°
Mostly Cloudy with a 69% chance of rain.
Sun
38° 19°
Rain, 64% chance.
Mon
37° 19°
Rain, 82% chance.
Tue
34° 18°
Drizzle, 53% chance.
TimeTempConditionsPrecipWindHumidity
Now 19° Mostly Cloudy 68% 10 mph ENE 94%
4 AM 19° Mostly Cloudy 32% 7 mph E 94%
5 AM 19° Mostly Clear 18% 6 mph ESE 95%
6 AM 17° Mostly Clear 20% 5 mph E 96%
7 AM 17° Mostly Clear 18% 4 mph E 97%
8 AM 18° Mostly Clear 21% 5 mph E 91%
9 AM 20° Mostly Clear 31% 6 mph ESE 84%
10 AM 21° Mostly Clear 23% 7 mph ESE 76%
11 AM 23° Clear 11% 7 mph SE 66%
12 PM 26° Clear 12% 8 mph SSE 57%
1 PM 28° Clear 12% 7 mph SSE 47%
2 PM 31° Clear 12% 8 mph S 44%
3 PM 32° Clear 12% 8 mph S 41%
4 PM 33° Clear 21% 9 mph S 39%
5 PM 32° Mostly Clear 21% 9 mph S 40%
6 PM 33° Mostly Clear 18% 8 mph S 41%
7 PM 32° Partly Cloudy 18% 7 mph S 45%
8 PM 30° Mostly Clear 30% 6 mph SSE 54%
9 PM 28° Mostly Clear 30% 6 mph SE 62%
10 PM 24° Mostly Clear 30% 7 mph ESE 70%
11 PM 24° Partly Cloudy 35% 6 mph SE 73%
12 AM 24° Partly Cloudy 35% 6 mph SE 75%
1 AM 23° Rain 33% 6 mph SSE 78%
2 AM 22° Rain 36% 4 mph SE 79%
15-Day Forecast
Today
9/2
Mostly Clear
68%
19°
33°
Thu
9/3
Mostly Clear
36%
19°
38°
Fri
9/4
Mostly Clear
28%
21°
38°
Sat
9/5
Mostly Cloudy
69%
19°
37°
Sun
9/6
Rain
64%
19°
38°
Mon
9/7
Rain
82%
19°
37°
Tue
9/8
Drizzle
53%
18°
34°
Wed
9/9
Drizzle
72%
13°
29°
Thu
9/10
Drizzle
44%
14°
29°
Fri
9/11
Rain
68%
13°
32°
Sat
9/12
Drizzle
60%
16°
29°
Sun
9/13
Drizzle
60%
15°
29°
Mon
9/14
Clear
60%
14°
28°
Tue
9/15
Drizzle
60%
15°
28°
Wed
9/16
Clear
60%
14°
29°
44
Good
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
44 AQI 8.0 µg/m³
O3
Ground-level ozone
36 AQI 39 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 44 Good 36 44
Thu 43 Good 43 35
Fri 45 Good 45 33
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 Wed Sep 2, 06:00'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
SBCAPE11 J/kg
MLCAPE854 J/kg
MUCAPE2274 J/kg
SBCIN-426 J/kg
MLCIN-133 J/kg
Lifted Index-0.0
Kinematics
0–6 km Shear39 kt
0–1 km Shear19 kt
Eff. Shear33 kt
0–1 km SRH102
0–3 km SRH221
Eff. SRH167
Storm Motion280° @ 31 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.2
Supercell6.5
K-Index43.8
Thermo & Levels
PWAT2.21 in
0–3 km LR3.9 °C/km
700–500 LR6.6 °C/km
Total Totals53.6
LCL953 hPa
LFC593 hPa
EL499 hPa
Freezing Lvl13,297 ft