Heat Advisory — Dallas, IA, Polk, IA, Jasper, IA, Poweshiek, IA, Madison, IA, Warren, IA, Marion, IA, Mahaska, IA, Union, IA, Clarke, IA, Lucas, IA, Monroe, IA, Wapello, IA, Ringgold, IA, Decatur, IA, Wayne, IA, Appanoose, IA, Davis, IA 7:00 PM

Decatur County, Iowa, United States

Last updated: 12:39 AM CDT  ·  Refresh
27°C
Feels like 27°
Mostly Clear
▲ 37°  /  ▼ 20°
Wind
11 mph S
Humidity
54%
Dew Point
18°
Pressure
28.74 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
22%
Sunrise
6:41 AM
Sunset
7:48 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Decatur County is currently mostly clear at 27°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2110 J/kg) — isolated convective development possible. Sunrise: 6:41AM · Sunset: 7:48PM.

Alerts

Heat Advisory
Dallas, IA, Polk, IA, Jasper, IA, Poweshiek, IA, Madison, IA, Warren, IA, Marion, IA, Mahaska, IA, Union, IA, Clarke, IA, Lucas, IA, Monroe, IA, Wapello, IA, Ringgold, IA, Decatur, IA, Wayne, IA, Appanoose, IA, Davis, IA
Expires 7:00 PM
56 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
27°
16%
1 AM
26°
15%
2 AM
26°
15%
3 AM
25°
7%
4 AM
25°
7%
5 AM
22°
7%
6 AM
22°
7%
7 AM
23°
4%
8 AM
25°
4%
9 AM
26°
5%
10 AM
27°
5%
11 AM
29°
3%
12 PM
31°
5%
1 PM
34°
13%
2 PM
35°
15%
3 PM
36°
15%
4 PM
35°
24%
5 PM
35°
14%
6 PM
34°
18%
7 PM
32°
19%
8 PM
30°
15%
9 PM
29°
15%
10 PM
28°
5%
11 PM
28°
5%
7-Day Forecast
Today
37° 20°
Partly Cloudy.
Tue
40° 20°
Mostly Clear.
Wed
39° 24°
Clear.
Thu
40° 22°
Clear with a 37% chance of rain.
Fri
41° 23°
Rain, 29% chance.
Sat
40° 20°
Rain, 55% chance.
Sun
37° 19°
Drizzle, 44% chance.
TimeTempConditionsPrecipWindHumidity
Now 27° Mostly Clear 16% 11 mph S 54%
1 AM 26° Partly Cloudy 15% 11 mph S 53%
2 AM 26° Partly Cloudy 15% 11 mph S 54%
3 AM 25° Partly Cloudy 7% 11 mph S 55%
4 AM 25° Mostly Clear 7% 12 mph SSW 56%
5 AM 22° Mostly Clear 7% 12 mph SSW 58%
6 AM 22° Mostly Clear 7% 12 mph SSW 60%
7 AM 23° Partly Cloudy 4% 12 mph SSW 58%
8 AM 25° Mostly Clear 4% 13 mph SW 53%
9 AM 26° Mostly Clear 5% 13 mph SW 48%
10 AM 27° Partly Cloudy 5% 12 mph SW 45%
11 AM 29° Partly Cloudy 3% 12 mph SW 42%
12 PM 31° Partly Cloudy 5% 11 mph SW 39%
1 PM 34° Partly Cloudy 13% 10 mph WSW 37%
2 PM 35° Partly Cloudy 15% 10 mph WSW 37%
3 PM 36° Partly Cloudy 15% 9 mph SW 36%
4 PM 35° Partly Cloudy 24% 7 mph SW 38%
5 PM 35° Partly Cloudy 14% 6 mph WSW 44%
6 PM 34° Partly Cloudy 18% 7 mph WSW 49%
7 PM 32° Partly Cloudy 19% 6 mph SW 53%
8 PM 30° Partly Cloudy 15% 6 mph SSW 56%
9 PM 29° Partly Cloudy 15% 5 mph S 59%
10 PM 28° Partly Cloudy 5% 6 mph S 61%
11 PM 28° Partly Cloudy 5% 6 mph SSW 61%
15-Day Forecast
Today
8/31
Partly Cloudy
18%
20°
37°
Tue
9/1
Mostly Clear
6%
20°
40°
Wed
9/2
Clear
7%
24°
39°
Thu
9/3
Clear
37%
22°
40°
Fri
9/4
Rain
29%
23°
41°
Sat
9/5
Rain
55%
20°
40°
Sun
9/6
Drizzle
44%
19°
37°
Mon
9/7
Drizzle
43%
18°
39°
Tue
9/8
Drizzle
44%
21°
44°
Wed
9/9
Clear
36%
21°
43°
Thu
9/10
Drizzle
60%
18°
41°
Fri
9/11
Drizzle
60%
18°
33°
Sat
9/12
Drizzle
60%
18°
33°
Sun
9/13
Drizzle
60%
19°
34°
Mon
9/14
Drizzle
60%
17°
31°
56
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
56 AQI 12.1 µg/m³
O3
Ground-level ozone
48 AQI 53 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 56 Moderate 48 56
Tue 55 Moderate 41 55
Wed 54 Moderate 47 54
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 Mon Aug 31, 04:00'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
SBCAPE8 J/kg
MLCAPE24 J/kg
MUCAPE525 J/kg
SBCIN-897 J/kg
MLCIN0 J/kg
Lifted Index-0.3
Kinematics
0–6 km Shear22 kt
0–1 km Shear29 kt
Eff. Shear9 kt
0–1 km SRH279
0–3 km SRH349
Eff. SRH-10
Storm Motion286° @ 19 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index32.9
Thermo & Levels
PWAT1.59 in
0–3 km LR4.8 °C/km
700–500 LR7.1 °C/km
Total Totals45.9
LCL852 hPa
LFC518 hPa
EL462 hPa
Freezing Lvl15,404 ft