Freeze Warning — Emmet, IA, Kossuth, IA, Winnebago, IA, Worth, IA, Palo Alto, IA, Hancock, IA, Cerro Gordo, IA, Pocahontas, IA, Humboldt, IA, Wright, IA, Franklin, IA, Butler, IA, Bremer, IA, Sac, IA, Calhoun, IA, Webster, IA, Hamilton, IA, Hardin, IA, Grundy, IA, Black Hawk, IA, Crawford, IA, Carroll, IA, Greene, IA, Boone, IA, Story, IA, Marshall, IA, Tama, IA, Audubon, IA, Guthrie, IA, Dallas, IA, Polk, IA, Jasper, IA, Poweshiek, IA, Cass, IA, Adair, IA, Madison, IA, Warren, IA, Marion, IA, Mahaska, IA, Adams, IA, Union, IA, Clarke, IA, Lucas, IA, Monroe, IA, Wapello, IA, Taylor, IA, Ringgold, IA, Decatur, IA, Wayne, IA, Appanoose, IA 9:00 AM

Decatur County, Iowa, United States

Last updated: 9:05 PM CDT  ·  Refresh
7°C
Feels like 4°
Mostly Clear
▲ 10°  /  ▼ 2°
Wind
8 mph NNW
Humidity
73%
Dew Point
2°
Pressure
29.35 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
28%
Sunrise
7:26 AM
Sunset
6:33 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Decatur County is currently mostly clear at 7°C. Dry conditions are expected through the next 24 hours. Sunrise: 7:26AM · Sunset: 6:33PM.

Alerts

Freeze Warning
Emmet, IA, Kossuth, IA, Winnebago, IA, Worth, IA, Palo Alto, IA, Hancock, IA, Cerro Gordo, IA, Pocahontas, IA, Humboldt, IA, Wright, IA, Franklin, IA, Butler, IA, Bremer, IA, Sac, IA, Calhoun, IA, Webster, IA, Hamilton, IA, Hardin, IA, Grundy, IA, Black Hawk, IA, Crawford, IA, Carroll, IA, Greene, IA, Boone, IA, Story, IA, Marshall, IA, Tama, IA, Audubon, IA, Guthrie, IA, Dallas, IA, Polk, IA, Jasper, IA, Poweshiek, IA, Cass, IA, Adair, IA, Madison, IA, Warren, IA, Marion, IA, Mahaska, IA, Adams, IA, Union, IA, Clarke, IA, Lucas, IA, Monroe, IA, Wapello, IA, Taylor, IA, Ringgold, IA, Decatur, IA, Wayne, IA, Appanoose, IA
Expires 9:00 AM
22 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
7°
3%
10 PM
7°
3%
11 PM
6°
3%
12 AM
5°
3%
1 AM
4°
3%
2 AM
3°
3%
3 AM
3°
3%
4 AM
3°
3%
5 AM
2°
3%
6 AM
2°
3%
7 AM
2°
3%
8 AM
3°
3%
9 AM
5°
3%
10 AM
8°
3%
11 AM
10°
3%
12 PM
12°
3%
1 PM
13°
3%
2 PM
14°
3%
3 PM
14°
3%
4 PM
14°
3%
5 PM
13°
3%
6 PM
11°
3%
7 PM
10°
3%
8 PM
9°
3%
7-Day Forecast
Tonight
10° 2°
Mostly Clear.
Sat
14° 2°
Clear.
Sun
18° 4°
Clear.
Mon
21° 6°
Partly Cloudy.
Tue
22° 8°
Mostly Clear.
Wed
24° 11°
Mostly Clear.
Thu
26° 13°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 7° Mostly Clear 3% 8 mph NNW 73%
10 PM 7° Clear 3% 7 mph NNW 76%
11 PM 6° Clear 3% 6 mph NNW 78%
12 AM 5° Clear 3% 6 mph NNW 80%
1 AM 4° Clear 3% 5 mph NNW 81%
2 AM 3° Clear 3% 5 mph NNW 82%
3 AM 3° Clear 3% 4 mph NNW 83%
4 AM 3° Clear 3% 3 mph NNW 83%
5 AM 2° Clear 3% 2 mph NW 84%
6 AM 2° Clear 3% 2 mph WNW 84%
7 AM 2° Clear 3% 2 mph SW 84%
8 AM 3° Clear 3% 3 mph SSW 78%
9 AM 5° Clear 3% 4 mph SSW 70%
10 AM 8° Clear 3% 7 mph SSW 60%
11 AM 10° Clear 3% 8 mph SSW 54%
12 PM 12° Clear 3% 9 mph SSW 49%
1 PM 13° Clear 3% 10 mph SSW 46%
2 PM 14° Clear 3% 10 mph SSW 45%
3 PM 14° Clear 3% 10 mph SSW 45%
4 PM 14° Clear 3% 10 mph SSW 45%
5 PM 13° Clear 3% 10 mph SSW 51%
6 PM 11° Clear 3% 9 mph SSW 56%
7 PM 10° Clear 3% 9 mph SSW 61%
8 PM 9° Clear 3% 9 mph S 63%
15-Day Forecast
Today
10/16
Mostly Clear
3%
2°
10°
Sat
10/17
Clear
3%
2°
14°
Sun
10/18
Clear
3%
4°
18°
Mon
10/19
Partly Cloudy
3%
6°
21°
Tue
10/20
Mostly Clear
18%
8°
22°
Wed
10/21
Mostly Clear
17%
11°
24°
Thu
10/22
Clear
15%
13°
26°
Fri
10/23
Partly Cloudy
16%
14°
26°
Sat
10/24
Drizzle
54%
12°
24°
Sun
10/25
Rain
72%
9°
18°
Mon
10/26
Overcast
60%
8°
17°
Tue
10/27
Clear
60%
7°
17°
Wed
10/28
Drizzle
60%
7°
18°
Thu
10/29
Drizzle
60%
8°
19°
Fri
10/30
Drizzle
60%
8°
18°
22
Good
U.S. Air Quality Index · Dominant: O3
50 100 150 200

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

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
8 AQI 1.6 µg/m³
O3
Ground-level ozone
Dominant
22 AQI 25 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 22 Good 22 8
Sun 25 Good 25 13
Mon 32 Good 27 32
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 LCL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Fri Oct 16, 23:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 70 80 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE9 J/kg
MUCAPE0 J/kg
SBCIN—
MLCIN0 J/kg
Lifted Index19.1
Kinematics
0–6 km Shear45 kt
0–1 km Shear19 kt
Eff. Shear—
0–1 km SRH73
0–3 km SRH82
Eff. SRH—
Storm Motion24° @ 40 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index-24.1
Thermo & Levels
PWAT0.37 in
0–3 km LR3.1 °C/km
700–500 LR5.3 °C/km
Total Totals25.5
LCL922 hPa
LFC—
EL—
Freezing Lvl3,940 ft