McCook County, South Dakota, United States

Last updated: 10:44 PM CDT  ·  Refresh
28°C
Feels like 29°
Clear
▲ 35°  /  ▼ 20°
Wind
7 mph S
Humidity
52%
Dew Point
19°
Pressure
28.31 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
5%
Sunrise
6:03 AM
Sunset
9:07 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: McCook County is currently clear at 28°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1280 J/kg) — isolated convective development possible. Sunrise: 6:03AM · Sunset: 9:07PM.

Alerts

No active alerts for this location.
50 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
28°
3%
11 PM
27°
3%
12 AM
26°
3%
1 AM
25°
3%
2 AM
24°
3%
3 AM
23°
3%
4 AM
23°
10%
5 AM
20°
6%
6 AM
20°
3%
7 AM
21°
3%
8 AM
22°
3%
9 AM
23°
3%
10 AM
25°
3%
11 AM
27°
3%
12 PM
28°
3%
1 PM
31°
3%
2 PM
32°
3%
3 PM
32°
3%
4 PM
32°
3%
5 PM
32°
3%
6 PM
32°
3%
7 PM
31°
3%
8 PM
29°
3%
9 PM
26°
3%
7-Day Forecast
Tonight
35° 20°
Clear.
Sat
34° 20°
Partly Cloudy.
Sun
36° 18°
Mostly Clear.
Mon
39° 21°
Clear.
Tue
30° 15°
Clear.
Wed
26° 13°
Drizzle, 51% chance.
Thu
29° 14°
Rain, 52% chance.
TimeTempConditionsPrecipWindHumidity
Now 28° Clear 3% 7 mph S 52%
11 PM 27° Clear 3% 4 mph ESE 54%
12 AM 26° Clear 3% 6 mph ENE 60%
1 AM 25° Clear 3% 9 mph ENE 65%
2 AM 24° Clear 3% 10 mph ENE 68%
3 AM 23° Clear 3% 11 mph ENE 72%
4 AM 23° Partly Cloudy 10% 11 mph ENE 74%
5 AM 20° Partly Cloudy 6% 11 mph ENE 74%
6 AM 20° Partly Cloudy 3% 12 mph ENE 74%
7 AM 21° Partly Cloudy 3% 12 mph ENE 69%
8 AM 22° Mostly Clear 3% 12 mph ENE 63%
9 AM 23° Mostly Clear 3% 12 mph ENE 56%
10 AM 25° Mostly Clear 3% 11 mph ENE 50%
11 AM 27° Partly Cloudy 3% 10 mph ENE 45%
12 PM 28° Partly Cloudy 3% 10 mph ENE 39%
1 PM 31° Partly Cloudy 3% 9 mph ENE 35%
2 PM 32° Partly Cloudy 3% 9 mph E 32%
3 PM 32° Mostly Cloudy 3% 8 mph E 29%
4 PM 32° Partly Cloudy 3% 8 mph E 29%
5 PM 32° Partly Cloudy 3% 9 mph E 29%
6 PM 32° Mostly Clear 3% 9 mph E 29%
7 PM 31° Mostly Clear 3% 9 mph E 34%
8 PM 29° Mostly Clear 3% 10 mph E 40%
9 PM 26° Mostly Clear 3% 10 mph E 45%
15-Day Forecast
Today
7/17
Clear
3%
20°
35°
Sat
7/18
Partly Cloudy
10%
20°
34°
Sun
7/19
Mostly Clear
7%
18°
36°
Mon
7/20
Clear
15%
21°
39°
Tue
7/21
Clear
8%
15°
30°
Wed
7/22
Drizzle
51%
13°
26°
Thu
7/23
Rain
52%
14°
29°
Fri
7/24
Rain
18%
15°
29°
Sat
7/25
Drizzle
44%
14°
34°
Sun
7/26
Rain
68%
17°
33°
Mon
7/27
Clear
60%
16°
33°
Tue
7/28
Drizzle
60%
21°
36°
Wed
7/29
Drizzle
60%
20°
36°
Thu
7/30
Drizzle
60%
21°
35°
Fri
7/31
Drizzle
60%
21°
35°
50
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
50 AQI 9.0 µg/m³
O3
Ground-level ozone
48 AQI 53 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 50 Good 48 50
Sun 43 Good 43 35
Mon 41 Good 41 41
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 Jul 18, 02:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE372 J/kg
MLCAPE446 J/kg
MUCAPE1251 J/kg
SBCIN-452 J/kg
MLCIN0 J/kg
Lifted Index-1.5
Kinematics
0–6 km Shear19 kt
0–1 km Shear10 kt
Eff. Shear18 kt
0–1 km SRH6
0–3 km SRH-23
Eff. SRH-32
Storm Motion272° @ 20 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index37.0
Thermo & Levels
PWAT1.49 in
0–3 km LR6.7 °C/km
700–500 LR5.6 °C/km
Total Totals46.1
LCL837 hPa
LFC695 hPa
EL206 hPa
Freezing Lvl14,718 ft