Brule County, South Dakota, United States

Last updated: 9:41 PM CDT  ·  Refresh
31°C
Feels like 31°
Clear
▲ 37°  /  ▼ 20°
Wind
7 mph ENE
Humidity
42%
Dew Point
18°
Pressure
28.13 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
1%
Sunrise
6:10 AM
Sunset
9:13 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Brule County is currently clear at 30°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1908 J/kg) — isolated convective development possible. Sunrise: 6:10AM · Sunset: 9:13PM.

Alerts

No active alerts for this location.
48 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
31°
3%
10 PM
28°
3%
11 PM
28°
3%
12 AM
27°
3%
1 AM
26°
3%
2 AM
26°
3%
3 AM
25°
3%
4 AM
24°
3%
5 AM
21°
3%
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
33°
3%
4 PM
33°
3%
5 PM
33°
3%
6 PM
33°
3%
7 PM
32°
3%
8 PM
31°
3%
7-Day Forecast
Tonight
37° 20°
Clear.
Sat
35° 20°
Mostly Clear.
Sun
38° 19°
Partly Cloudy.
Mon
39° 22°
Clear.
Tue
30° 17°
Clear.
Wed
24° 10°
Rain, 64% chance.
Thu
28° 14°
Clear with a 52% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 31° Clear 3% 7 mph ENE 42%
10 PM 28° Clear 3% 8 mph ENE 51%
11 PM 28° Clear 3% 8 mph NE 55%
12 AM 27° Clear 3% 8 mph NE 59%
1 AM 26° Clear 3% 9 mph NE 62%
2 AM 26° Mostly Clear 3% 10 mph NE 66%
3 AM 25° Partly Cloudy 3% 11 mph ENE 68%
4 AM 24° Mostly Clear 3% 11 mph ENE 68%
5 AM 21° Mostly Clear 3% 11 mph ENE 68%
6 AM 20° Mostly Clear 3% 10 mph ENE 68%
7 AM 21° Clear 3% 11 mph ENE 65%
8 AM 22° Clear 3% 12 mph ENE 59%
9 AM 23° Clear 3% 12 mph E 52%
10 AM 25° Clear 3% 11 mph E 48%
11 AM 27° Clear 3% 11 mph E 43%
12 PM 28° Clear 3% 10 mph ENE 39%
1 PM 31° Mostly Clear 3% 10 mph ENE 36%
2 PM 32° Mostly Clear 3% 10 mph ENE 33%
3 PM 33° Mostly Clear 3% 10 mph ENE 30%
4 PM 33° Mostly Clear 3% 10 mph ENE 30%
5 PM 33° Mostly Clear 3% 10 mph E 29%
6 PM 33° Clear 3% 9 mph E 29%
7 PM 32° Clear 3% 9 mph E 32%
8 PM 31° Clear 3% 9 mph E 36%
15-Day Forecast
Today
7/17
Clear
3%
20°
37°
Sat
7/18
Mostly Clear
3%
20°
35°
Sun
7/19
Partly Cloudy
13%
19°
38°
Mon
7/20
Clear
10%
22°
39°
Tue
7/21
Clear
3%
17°
30°
Wed
7/22
Rain
64%
10°
24°
Thu
7/23
Clear
52%
14°
28°
Fri
7/24
Clear
28%
15°
31°
Sat
7/25
Drizzle
44%
14°
33°
Sun
7/26
Rain
68%
19°
35°
Mon
7/27
Clear
60%
16°
33°
Tue
7/28
Drizzle
60%
22°
36°
Wed
7/29
Drizzle
60%
22°
36°
Thu
7/30
Clear
25%
21°
34°
Fri
7/31
Drizzle
60%
21°
34°
48
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
44 AQI 8.0 µg/m³
O3
Ground-level ozone
Dominant
48 AQI 53 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 48 Good 48 44
Sun 39 Good 39 35
Mon 43 Good 43 38
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, 01:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE588 J/kg
MLCAPE215 J/kg
MUCAPE2202 J/kg
SBCIN-425 J/kg
MLCIN0 J/kg
Lifted Index-2.5
Kinematics
0–6 km Shear18 kt
0–1 km Shear6 kt
Eff. Shear17 kt
0–1 km SRH14
0–3 km SRH-8
Eff. SRH-7
Storm Motion257° @ 14 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index34.8
Thermo & Levels
PWAT1.39 in
0–3 km LR7.1 °C/km
700–500 LR6.2 °C/km
Total Totals45.7
LCL795 hPa
LFC675 hPa
EL200 hPa
Freezing Lvl14,524 ft