Extreme Heat Warning — Pottawattamie, IA, Mills, IA, Montgomery, IA, Fremont, IA, Page, IA, Douglas, NE, Sarpy, NE 10:00 PM

Shelby County, Iowa, United States

Last updated: 4:35 AM CDT  ·  Refresh
27°C
Feels like 29°
Mostly Clear
▲ 38°  /  ▼ 23°
Wind
8 mph SSW
Humidity
75%
Dew Point
23°
Pressure
28.44 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
27%
Sunrise
6:10 AM
Sunset
8:44 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Shelby County is currently mostly clear at 27°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2819 J/kg) — isolated convective development possible. Sunrise: 6:10AM · Sunset: 8:44PM.

Alerts

Extreme Heat Warning
Pottawattamie, IA, Mills, IA, Montgomery, IA, Fremont, IA, Page, IA, Douglas, NE, Sarpy, NE
Expires 10:00 PM
41 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
27°
11%
5 AM
26°
27%
6 AM
25°
27%
7 AM
26°
27%
8 AM
28°
27%
9 AM
30°
30%
10 AM
32°
30%
11 AM
33°
30%
12 PM
34°
23%
1 PM
35°
7%
2 PM
37°
7%
3 PM
37°
8%
4 PM
37°
16%
5 PM
38°
16%
6 PM
38°
16%
7 PM
36°
16%
8 PM
33°
17%
9 PM
31°
17%
10 PM
29°
17%
11 PM
28°
17%
12 AM
28°
17%
1 AM
27°
18%
2 AM
27°
18%
3 AM
26°
18%
7-Day Forecast
Today
38° 23°
Mostly Clear with a 30% chance of rain.
Tue
35° 22°
Mostly Cloudy.
Wed
36° 20°
Partly Cloudy with a 29% chance of rain.
Thu
33° 22°
Overcast with a 83% chance of rain.
Fri
32° 19°
Partly Cloudy with a 71% chance of rain.
Sat
34° 19°
Mostly Clear.
Sun
36° 19°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 27° Mostly Clear 11% 8 mph SSW 75%
5 AM 26° Partly Cloudy 27% 7 mph SSW 72%
6 AM 25° Mostly Clear 27% 7 mph SSW 72%
7 AM 26° Mostly Clear 27% 8 mph SSW 68%
8 AM 28° Mostly Clear 27% 9 mph SW 59%
9 AM 30° Clear 30% 9 mph SW 52%
10 AM 32° Clear 30% 6 mph SW 47%
11 AM 33° Mostly Clear 30% 3 mph WSW 43%
12 PM 34° Mostly Clear 23% 4 mph NE 39%
1 PM 35° Clear 7% 5 mph NE 37%
2 PM 37° Clear 7% 7 mph NE 35%
3 PM 37° Mostly Clear 8% 8 mph ENE 34%
4 PM 37° Partly Cloudy 16% 9 mph ENE 34%
5 PM 38° Mostly Clear 16% 10 mph ENE 34%
6 PM 38° Mostly Clear 16% 10 mph ENE 35%
7 PM 36° Mostly Clear 16% 10 mph ENE 40%
8 PM 33° Mostly Clear 17% 8 mph ENE 48%
9 PM 31° Mostly Clear 17% 7 mph ENE 56%
10 PM 29° Partly Cloudy 17% 6 mph ENE 63%
11 PM 28° Partly Cloudy 17% 7 mph E 67%
12 AM 28° Partly Cloudy 17% 7 mph E 72%
1 AM 27° Mostly Cloudy 18% 7 mph E 74%
2 AM 27° Mostly Cloudy 18% 6 mph E 76%
3 AM 26° Mostly Cloudy 18% 6 mph ENE 78%
15-Day Forecast
Today
7/27
Mostly Clear
30%
23°
38°
Tue
7/28
Mostly Cloudy
11%
22°
35°
Wed
7/29
Partly Cloudy
29%
20°
36°
Thu
7/30
Overcast
83%
22°
33°
Fri
7/31
Partly Cloudy
71%
19°
32°
Sat
8/1
Mostly Clear
15%
19°
34°
Sun
8/2
Clear
10%
19°
36°
Mon
8/3
Drizzle
34%
21°
38°
Tue
8/4
Partly Cloudy
40%
20°
38°
Wed
8/5
Drizzle
66%
18°
32°
Thu
8/6
Drizzle
60%
20°
35°
Fri
8/7
Drizzle
60%
19°
34°
Sat
8/8
Drizzle
60%
20°
34°
Sun
8/9
Drizzle
60%
20°
34°
Mon
8/10
Drizzle
60%
20°
35°
41
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
41 AQI 7.4 µg/m³
O3
Ground-level ozone
Dominant
41 AQI 45 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 41 Good 41 41
Tue 47 Good 40 47
Wed 49 Good 44 49
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 Jul 27, 08:00'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
SBCAPE2035 J/kg
MLCAPE1782 J/kg
MUCAPE2903 J/kg
SBCIN-474 J/kg
MLCIN0 J/kg
Lifted Index-5.0
Kinematics
0–6 km Shear23 kt
0–1 km Shear30 kt
Eff. Shear45 kt
0–1 km SRH183
0–3 km SRH213
Eff. SRH37
Storm Motion255° @ 30 kt
0–1 km EHI2.3
Composite Parameters
Sig. Tornado1.5
STP (eff)0.0
Supercell2.5
K-Index41.6
Thermo & Levels
PWAT2.02 in
0–3 km LR4.8 °C/km
700–500 LR6.8 °C/km
Total Totals51.4
LCL910 hPa
LFC673 hPa
EL167 hPa
Freezing Lvl15,427 ft