Flood Watch

Decatur County, Iowa, United States

Last updated: 2:34 AM CDT  ·  Refresh
22°C
Feels like 24°
Mostly Clear
▲ 31°  /  ▼ 22°
Wind
4 mph NNW
Humidity
92%
Dew Point
21°
Pressure
28.92 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
23%
Sunrise
6:18 AM
Sunset
8:22 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Decatur County is currently mostly clear at 22°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2536 J/kg) — isolated convective development possible. Sunrise: 6:18AM · Sunset: 8:22PM.

Alerts

Flood Watch
Expires
46 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
22°
11%
3 AM
21°
3%
4 AM
21°
3%
5 AM
18°
3%
6 AM
18°
3%
7 AM
19°
3%
8 AM
21°
3%
9 AM
22°
7%
10 AM
23°
7%
11 AM
24°
7%
12 PM
26°
8%
1 PM
28°
8%
2 PM
29°
8%
3 PM
29°
17%
4 PM
29°
19%
5 PM
31°
19%
6 PM
31°
20%
7 PM
30°
20%
8 PM
29°
20%
9 PM
27°
21%
10 PM
26°
21%
11 PM
26°
21%
12 AM
25°
22%
1 AM
25°
22%
7-Day Forecast
Today
31° 22°
Clear with a 20% chance of rain.
Sun
36° 22°
Mostly Clear with a 50% chance of rain.
Mon
34° 23°
Mostly Cloudy.
Tue
32° 21°
Mostly Cloudy with a 76% chance of rain.
Wed
32° 19°
Drizzle, 51% chance.
Thu
27° 16°
Heavy Rain, 82% chance.
Fri
26° 13°
Rain, 82% chance.
TimeTempConditionsPrecipWindHumidity
Now 22° Mostly Clear 11% 4 mph NNW 92%
3 AM 21° Mostly Clear 3% 5 mph N 93%
4 AM 21° Mostly Clear 3% 6 mph NNE 91%
5 AM 18° Mostly Clear 3% 5 mph NNE 87%
6 AM 18° Mostly Clear 3% 5 mph NE 84%
7 AM 19° Mostly Clear 3% 6 mph NE 78%
8 AM 21° Clear 3% 6 mph NE 73%
9 AM 22° Clear 7% 6 mph ENE 67%
10 AM 23° Clear 7% 6 mph ENE 64%
11 AM 24° Clear 7% 5 mph ENE 61%
12 PM 26° Clear 8% 5 mph E 59%
1 PM 28° Clear 8% 5 mph ESE 58%
2 PM 29° Clear 8% 5 mph ESE 57%
3 PM 29° Mostly Clear 17% 6 mph SE 57%
4 PM 29° Mostly Clear 19% 7 mph SE 59%
5 PM 31° Mostly Clear 19% 8 mph SE 62%
6 PM 31° Mostly Clear 20% 8 mph SE 67%
7 PM 30° Mostly Clear 20% 7 mph SE 73%
8 PM 29° Mostly Clear 20% 7 mph SE 77%
9 PM 27° Mostly Clear 21% 6 mph SE 81%
10 PM 26° Partly Cloudy 21% 6 mph SSE 84%
11 PM 26° Partly Cloudy 21% 7 mph SSE 86%
12 AM 25° Partly Cloudy 22% 7 mph SSE 87%
1 AM 25° Mostly Cloudy 22% 8 mph SSE 87%
15-Day Forecast
Today
8/8
Clear
20%
22°
31°
Sun
8/9
Mostly Clear
50%
22°
36°
Mon
8/10
Mostly Cloudy
18%
23°
34°
Tue
8/11
Mostly Cloudy
76%
21°
32°
Wed
8/12
Drizzle
51%
19°
32°
Thu
8/13
Heavy Rain
82%
16°
27°
Fri
8/14
Rain
82%
13°
26°
Sat
8/15
Drizzle
72%
13°
26°
Sun
8/16
Drizzle
44%
14°
27°
Mon
8/17
Drizzle
68%
17°
30°
Tue
8/18
Drizzle
60%
18°
31°
Wed
8/19
Drizzle
60%
19°
32°
Thu
8/20
Drizzle
60%
19°
32°
Fri
8/21
Clear
60%
19°
32°
Sat
8/22
Drizzle
60%
18°
32°
46
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
46 AQI 8.3 µg/m³
O3
Ground-level ozone
34 AQI 37 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 46 Good 34 46
Sun 34 Good 30 34
Mon 50 Good 34 50
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 8, 06:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE940 J/kg
MLCAPE1617 J/kg
MUCAPE2101 J/kg
SBCIN-351 J/kg
MLCIN0 J/kg
Lifted Index-4.0
Kinematics
0–6 km Shear32 kt
0–1 km Shear9 kt
Eff. Shear32 kt
0–1 km SRH29
0–3 km SRH-26
Eff. SRH-42
Storm Motion284° @ 29 kt
0–1 km EHI0.2
Composite Parameters
Sig. Tornado0.2
STP (eff)0.0
Supercell0.0
K-Index15.9
Thermo & Levels
PWAT1.25 in
0–3 km LR3.8 °C/km
700–500 LR7.7 °C/km
Total Totals52.0
LCL962 hPa
LFC638 hPa
EL247 hPa
Freezing Lvl14,163 ft