Bon Homme County, South Dakota, United States

Last updated: 9:41 PM CDT  ·  Refresh
30°C
Feels like 30°
Clear
▲ 36°  /  ▼ 20°
Wind
9 mph S
Humidity
44%
Dew Point
18°
Pressure
28.38 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
3%
Sunrise
6:07 AM
Sunset
9:07 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Bon Homme County is currently clear at 30°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 663 J/kg) — isolated convective development possible. Sunrise: 6:07AM · Sunset: 9:07PM.

Alerts

No active alerts for this location.
45 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
30°
3%
10 PM
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°
3%
5 AM
20°
3%
6 AM
20°
3%
7 AM
21°
5%
8 AM
22°
3%
9 AM
24°
5%
10 AM
26°
13%
11 AM
27°
5%
12 PM
28°
3%
1 PM
32°
3%
2 PM
32°
3%
3 PM
33°
3%
4 PM
33°
3%
5 PM
34°
3%
6 PM
33°
3%
7 PM
32°
3%
8 PM
31°
3%
7-Day Forecast
Tonight
36° 20°
Clear.
Sat
36° 20°
Mostly Clear.
Sun
38° 19°
Mostly Clear.
Mon
42° 23°
Partly Cloudy.
Tue
31° 18°
Clear.
Wed
24° 10°
Rain, 64% chance.
Thu
28° 13°
Rain, 64% chance.
TimeTempConditionsPrecipWindHumidity
Now 30° Clear 3% 9 mph S 44%
10 PM 28° Clear 3% 7 mph SSW 48%
11 PM 27° Clear 3% 7 mph SSW 54%
12 AM 26° Clear 3% 7 mph SW 58%
1 AM 25° Clear 3% 6 mph SW 61%
2 AM 24° Clear 3% 5 mph WSW 64%
3 AM 23° Clear 3% 4 mph WSW 66%
4 AM 23° Mostly Clear 3% 2 mph WSW 68%
5 AM 20° Partly Cloudy 3% 2 mph N 70%
6 AM 20° Mostly Clear 3% 5 mph NE 72%
7 AM 21° Partly Cloudy 5% 8 mph ENE 69%
8 AM 22° Partly Cloudy 3% 10 mph ENE 64%
9 AM 24° Mostly Clear 5% 11 mph ENE 57%
10 AM 26° Mostly Clear 13% 11 mph ENE 52%
11 AM 27° Mostly Clear 5% 11 mph ENE 48%
12 PM 28° Partly Cloudy 3% 10 mph ENE 44%
1 PM 32° Mostly Clear 3% 10 mph ENE 40%
2 PM 32° Mostly Clear 3% 10 mph ENE 37%
3 PM 33° Clear 3% 10 mph ENE 34%
4 PM 33° Clear 3% 10 mph ENE 33%
5 PM 34° Clear 3% 11 mph ENE 33%
6 PM 33° Mostly Clear 3% 11 mph ENE 33%
7 PM 32° Mostly Clear 3% 11 mph ENE 36%
8 PM 31° Clear 3% 11 mph E 40%
15-Day Forecast
Today
7/17
Clear
3%
20°
36°
Sat
7/18
Mostly Clear
5%
20°
36°
Sun
7/19
Mostly Clear
12%
19°
38°
Mon
7/20
Partly Cloudy
7%
23°
42°
Tue
7/21
Clear
8%
18°
31°
Wed
7/22
Rain
64%
10°
24°
Thu
7/23
Rain
64%
13°
28°
Fri
7/24
Rain
53%
15°
29°
Sat
7/25
Drizzle
44%
13°
33°
Sun
7/26
Drizzle
68%
17°
34°
Mon
7/27
Drizzle
60%
15°
33°
Tue
7/28
Drizzle
60%
22°
36°
Wed
7/29
Drizzle
60%
21°
37°
Thu
7/30
Clear
25%
22°
35°
Fri
7/31
Drizzle
60%
22°
36°
45
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
45 AQI 8.1 µg/m³
O3
Ground-level ozone
Dominant
45 AQI 49 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 45 Good 45 45
Sun 42 Good 39 42
Mon 43 Good 43 37
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
SBCAPE62 J/kg
MLCAPE87 J/kg
MUCAPE818 J/kg
SBCIN-413 J/kg
MLCIN0 J/kg
Lifted Index-0.5
Kinematics
0–6 km Shear14 kt
0–1 km Shear9 kt
Eff. Shear22 kt
0–1 km SRH63
0–3 km SRH-20
Eff. SRH-69
Storm Motion279° @ 20 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index33.4
Thermo & Levels
PWAT1.35 in
0–3 km LR6.9 °C/km
700–500 LR5.7 °C/km
Total Totals45.9
LCL801 hPa
LFC562 hPa
EL228 hPa
Freezing Lvl15,443 ft