Shelby County, Iowa, United States

Last updated: 10:58 AM CDT  ·  Refresh
23°C
Feels like 25°
Clear
▲ 27°  /  ▼ 15°
Wind
2 mph SSE
Humidity
76%
Dew Point
19°
Pressure
28.70 inHg
Visibility
9 mi
UV Index
8.0
Cloud Cover
2%
Sunrise
6:35 AM
Sunset
8:13 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Shelby County is currently clear at 23°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1462 J/kg) — isolated convective development possible. Sunrise: 6:35AM · Sunset: 8:13PM.

Alerts

No active alerts for this location.
31 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
23°
3%
11 AM
24°
14%
12 PM
26°
3%
1 PM
26°
9%
2 PM
26°
12%
3 PM
27°
19%
4 PM
26°
27%
5 PM
27°
28%
6 PM
27°
28%
7 PM
25°
29%
8 PM
23°
29%
9 PM
21°
30%
10 PM
21°
13%
11 PM
20°
14%
12 AM
19°
5%
1 AM
19°
8%
2 AM
19°
8%
3 AM
18°
8%
4 AM
18°
12%
5 AM
17°
12%
6 AM
17°
9%
7 AM
18°
5%
8 AM
19°
5%
9 AM
23°
5%
7-Day Forecast
Today
27° 15°
Clear with a 29% chance of rain.
Fri
32° 17°
Clear with a 36% chance of rain.
Sat
29° 16°
Clear with a 22% chance of rain.
Sun
27° 13°
Partly Cloudy with a 75% chance of rain.
Mon
31° 15°
Clear with a 50% chance of rain.
Tue
33° 18°
Rain, 43% chance.
Wed
32° 16°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 23° Clear 3% 2 mph SSE 76%
11 AM 24° Clear 14% 4 mph SSE 69%
12 PM 26° Clear 3% 5 mph SSE 63%
1 PM 26° Clear 9% 6 mph S 61%
2 PM 26° Clear 12% 7 mph S 60%
3 PM 27° Clear 19% 8 mph S 60%
4 PM 26° Clear 27% 8 mph SSW 63%
5 PM 27° Clear 28% 6 mph SSW 67%
6 PM 27° Clear 28% 5 mph SW 72%
7 PM 25° Clear 29% 5 mph SSW 76%
8 PM 23° Clear 29% 5 mph S 79%
9 PM 21° Mostly Clear 30% 6 mph S 82%
10 PM 21° Mostly Clear 13% 6 mph S 84%
11 PM 20° Clear 14% 6 mph S 86%
12 AM 19° Clear 5% 6 mph S 88%
1 AM 19° Clear 8% 6 mph S 89%
2 AM 19° Clear 8% 6 mph SSW 89%
3 AM 18° Clear 8% 6 mph SSW 90%
4 AM 18° Clear 12% 6 mph SSW 90%
5 AM 17° Mostly Clear 12% 6 mph SSW 90%
6 AM 17° Mostly Clear 9% 6 mph SSW 90%
7 AM 18° Mostly Clear 5% 7 mph SW 87%
8 AM 19° Mostly Clear 5% 7 mph SW 84%
9 AM 23° Mostly Clear 5% 8 mph SW 81%
15-Day Forecast
Today
8/20
Clear
29%
15°
27°
Fri
8/21
Clear
36%
17°
32°
Sat
8/22
Clear
22%
16°
29°
Sun
8/23
Partly Cloudy
75%
13°
27°
Mon
8/24
Clear
50%
15°
31°
Tue
8/25
Rain
43%
18°
33°
Wed
8/26
Clear
17%
16°
32°
Thu
8/27
Drizzle
68%
15°
31°
Fri
8/28
Rain
68%
17°
32°
Sat
8/29
Rain
68%
19°
34°
Sun
8/30
Drizzle
60%
19°
35°
Mon
8/31
Drizzle
60%
19°
33°
Tue
9/1
Drizzle
60%
19°
33°
Wed
9/2
Clear
25%
19°
34°
Thu
9/3
Drizzle
60%
19°
34°
31
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
17 AQI 3.1 µg/m³
O3
Ground-level ozone
Dominant
31 AQI 34 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Fri 31 Good 31 17
Sat 33 Good 33 17
Sun 30 Good 30 16
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 Thu Aug 20, 14:00'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
SBCAPE383 J/kg
MLCAPE17 J/kg
MUCAPE383 J/kg
SBCIN-37 J/kg
MLCIN-135 J/kg
Lifted Index-1.5
Kinematics
0–6 km Shear28 kt
0–1 km Shear3 kt
Eff. Shear26 kt
0–1 km SRH12
0–3 km SRH52
Eff. SRH52
Storm Motion14° @ 20 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.3
K-Index9.0
Thermo & Levels
PWAT0.91 in
0–3 km LR5.7 °C/km
700–500 LR5.7 °C/km
Total Totals39.2
LCL918 hPa
LFC737 hPa
EL261 hPa
Freezing Lvl12,838 ft