Heat Advisory — Brown, SD, Marshall, SD, Roberts, SD, Walworth, SD, Edmunds, SD, Day, SD, Dewey, SD, Potter, SD, Faulk, SD, Spink, SD, Clark, SD, Codington, SD, Grant, SD, Hamlin, SD, Deuel, SD, Stanley, SD, Sully, SD, Hughes, SD, Hyde, SD, Hand, SD, Jones, SD, Lyman, SD, Buffalo, SD 9:00 PM

Hand County, South Dakota, United States

Last updated: 5:35 PM CDT  ·  Refresh
34°C
Feels like 36°
Mostly Clear
▲ 37°  /  ▼ 17°
Wind
9 mph NNE
Humidity
37%
Dew Point
19°
Pressure
28.25 inHg
Visibility
10 mi
UV Index
6.9
Cloud Cover
13%
Sunrise
6:07 AM
Sunset
9:16 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Hand County is currently mostly clear at 35°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1926 J/kg) — isolated convective development possible. Sunrise: 6:07AM · Sunset: 9:16PM.

Alerts

Heat Advisory
Brown, SD, Marshall, SD, Roberts, SD, Walworth, SD, Edmunds, SD, Day, SD, Dewey, SD, Potter, SD, Faulk, SD, Spink, SD, Clark, SD, Codington, SD, Grant, SD, Hamlin, SD, Deuel, SD, Stanley, SD, Sully, SD, Hughes, SD, Hyde, SD, Hand, SD, Jones, SD, Lyman, SD, Buffalo, SD
Expires 9:00 PM
44 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
34°
5%
6 PM
34°
5%
7 PM
33°
5%
8 PM
31°
5%
9 PM
29°
5%
10 PM
27°
3%
11 PM
26°
3%
12 AM
24°
3%
1 AM
23°
3%
2 AM
22°
6%
3 AM
22°
6%
4 AM
21°
6%
5 AM
21°
6%
6 AM
17°
3%
7 AM
18°
3%
8 AM
20°
3%
9 AM
21°
3%
10 AM
24°
3%
11 AM
25°
3%
12 PM
28°
3%
1 PM
29°
3%
2 PM
29°
3%
3 PM
30°
3%
4 PM
30°
3%
7-Day Forecast
Today
37° 17°
Mostly Clear.
Sat
33° 17°
Mostly Clear.
Sun
37° 20°
Partly Cloudy with a 20% chance of rain.
Mon
36° 21°
Mostly Clear.
Tue
28° 17°
Mostly Clear.
Wed
28° 15°
Drizzle, 60% chance.
Thu
31° 17°
Mostly Clear with a 35% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 34° Mostly Clear 5% 9 mph NNE 37%
6 PM 34° Mostly Clear 5% 8 mph NNE 39%
7 PM 33° Mostly Clear 5% 7 mph NNE 43%
8 PM 31° Mostly Clear 5% 8 mph NNE 49%
9 PM 29° Mostly Clear 5% 9 mph NNE 55%
10 PM 27° Mostly Clear 3% 10 mph NNE 60%
11 PM 26° Mostly Clear 3% 10 mph NE 63%
12 AM 24° Partly Cloudy 3% 10 mph NE 67%
1 AM 23° Partly Cloudy 3% 9 mph NE 71%
2 AM 22° Partly Cloudy 6% 8 mph NE 76%
3 AM 22° Mostly Clear 6% 8 mph NE 78%
4 AM 21° Mostly Clear 6% 8 mph NE 79%
5 AM 21° Mostly Clear 6% 8 mph NE 80%
6 AM 17° Partly Cloudy 3% 7 mph NE 80%
7 AM 18° Mostly Clear 3% 7 mph ENE 74%
8 AM 20° Mostly Clear 3% 8 mph ENE 65%
9 AM 21° Partly Cloudy 3% 9 mph ENE 56%
10 AM 24° Partly Cloudy 3% 9 mph ENE 48%
11 AM 25° Partly Cloudy 3% 9 mph ENE 41%
12 PM 28° Partly Cloudy 3% 8 mph ENE 36%
1 PM 29° Partly Cloudy 3% 8 mph ENE 33%
2 PM 29° Partly Cloudy 3% 8 mph ENE 31%
3 PM 30° Partly Cloudy 3% 8 mph ENE 29%
4 PM 30° Partly Cloudy 3% 9 mph ENE 29%
15-Day Forecast
Today
7/17
Mostly Clear
5%
17°
37°
Sat
7/18
Mostly Clear
6%
17°
33°
Sun
7/19
Partly Cloudy
20%
20°
37°
Mon
7/20
Mostly Clear
8%
21°
36°
Tue
7/21
Mostly Clear
3%
17°
28°
Wed
7/22
Drizzle
60%
15°
28°
Thu
7/23
Mostly Clear
35%
17°
31°
Fri
7/24
Overcast
60%
18°
32°
Sat
7/25
Drizzle
60%
18°
32°
Sun
7/26
Drizzle
60%
17°
33°
Mon
7/27
Drizzle
60%
18°
35°
Tue
7/28
Drizzle
60%
21°
35°
Wed
7/29
Drizzle
60%
21°
34°
Thu
7/30
Drizzle
60%
20°
33°
Fri
7/31
Drizzle
60%
20°
33°
44
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 7.9 µg/m³
O3
Ground-level ozone
Dominant
44 AQI 48 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Sat 44 Good 44 44
Sun 41 Good 41 32
Mon 40 Good 39 40
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 Fri Jul 17, 21:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE2189 J/kg
MLCAPE2141 J/kg
MUCAPE2480 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-6.3
Kinematics
0–6 km Shear17 kt
0–1 km Shear3 kt
Eff. Shear18 kt
0–1 km SRH-2
0–3 km SRH3
Eff. SRH3
Storm Motion207° @ 10 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.1
K-Index35.0
Thermo & Levels
PWAT1.62 in
0–3 km LR8.3 °C/km
700–500 LR6.9 °C/km
Total Totals52.0
LCL770 hPa
LFC957 hPa
EL165 hPa
Freezing Lvl14,252 ft