Brule County, South Dakota, United States

Last updated: 10:40 PM CDT  ·  Refresh
28°C
Feels like 29°
Clear
▲ 37°  /  ▼ 20°
Wind
9 mph NE
Humidity
54%
Dew Point
19°
Pressure
28.15 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
8%
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 28°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1712 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
28°
3%
11 PM
27°
3%
12 AM
27°
3%
1 AM
26°
3%
2 AM
26°
3%
3 AM
24°
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
30°
3%
9 PM
28°
3%
7-Day Forecast
Tonight
37° 20°
Clear.
Sat
34° 20°
Mostly Clear.
Sun
39° 20°
Partly Cloudy.
Mon
38° 21°
Clear.
Tue
29° 16°
Clear with a 22% chance of rain.
Wed
24° 10°
Rain, 64% chance.
Thu
28° 14°
Clear with a 52% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 28° Clear 3% 9 mph NE 54%
11 PM 27° Clear 3% 8 mph NE 56%
12 AM 27° Clear 3% 8 mph NE 60%
1 AM 26° Clear 3% 8 mph NE 64%
2 AM 26° Mostly Clear 3% 9 mph NE 68%
3 AM 24° Partly Cloudy 3% 10 mph NE 70%
4 AM 24° Mostly Clear 3% 11 mph ENE 71%
5 AM 21° Mostly Clear 3% 10 mph ENE 71%
6 AM 20° Clear 3% 10 mph ENE 72%
7 AM 21° Clear 3% 11 mph ENE 68%
8 AM 22° Mostly Clear 3% 11 mph ENE 61%
9 AM 23° Mostly Clear 3% 12 mph ENE 55%
10 AM 25° Mostly Clear 3% 11 mph E 49%
11 AM 27° Mostly Clear 3% 10 mph ENE 44%
12 PM 28° Mostly Clear 3% 10 mph ENE 39%
1 PM 31° Clear 3% 10 mph ENE 35%
2 PM 32° Clear 3% 10 mph ENE 32%
3 PM 33° Clear 3% 10 mph ENE 30%
4 PM 33° Clear 3% 10 mph ENE 29%
5 PM 33° Clear 3% 9 mph ENE 28%
6 PM 33° Clear 3% 9 mph E 28%
7 PM 32° Clear 3% 9 mph E 31%
8 PM 30° Clear 3% 9 mph E 35%
9 PM 28° Clear 3% 8 mph E 40%
15-Day Forecast
Today
7/17
Clear
3%
20°
37°
Sat
7/18
Mostly Clear
3%
20°
34°
Sun
7/19
Partly Cloudy
11%
20°
39°
Mon
7/20
Clear
15%
21°
38°
Tue
7/21
Clear
22%
16°
29°
Wed
7/22
Rain
64%
10°
24°
Thu
7/23
Clear
52%
14°
28°
Fri
7/24
Clear
17%
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, 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
SBCAPE612 J/kg
MLCAPE1332 J/kg
MUCAPE2690 J/kg
SBCIN-405 J/kg
MLCIN0 J/kg
Lifted Index-3.2
Kinematics
0–6 km Shear15 kt
0–1 km Shear10 kt
Eff. Shear16 kt
0–1 km SRH49
0–3 km SRH27
Eff. SRH37
Storm Motion247° @ 12 kt
0–1 km EHI0.2
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.8
K-Index36.9
Thermo & Levels
PWAT1.58 in
0–3 km LR6.4 °C/km
700–500 LR6.4 °C/km
Total Totals49.1
LCL835 hPa
LFC678 hPa
EL198 hPa
Freezing Lvl14,324 ft