Flood Warning — Brookings County, SD, Hamlin County, SD 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

Hamlin County, South Dakota, United States

Last updated: 5:35 PM CDT  ·  Refresh
34°C
Feels like 34°
Mostly Clear
▲ 36°  /  ▼ 17°
Wind
8 mph W
Humidity
31%
Dew Point
19°
Pressure
28.10 inHg
Visibility
10 mi
UV Index
6.7
Cloud Cover
16%
Sunrise
5:59 AM
Sunset
9:09 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Hamlin County is currently mostly clear at 35°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2297 J/kg) — isolated convective development possible. Sunrise: 5:59AM · Sunset: 9:09PM.

Alerts

Flood Warning
Brookings County, SD, Hamlin County, SD
Expires
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
52 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
34°
5%
6 PM
35°
10%
7 PM
33°
10%
8 PM
31°
10%
9 PM
28°
10%
10 PM
27°
8%
11 PM
26°
8%
12 AM
24°
3%
1 AM
23°
3%
2 AM
23°
3%
3 AM
22°
3%
4 AM
21°
3%
5 AM
17°
3%
6 AM
17°
3%
7 AM
18°
3%
8 AM
19°
3%
9 AM
21°
3%
10 AM
22°
3%
11 AM
23°
3%
12 PM
26°
3%
1 PM
27°
3%
2 PM
27°
3%
3 PM
28°
3%
4 PM
28°
3%
7-Day Forecast
Today
36° 17°
Mostly Clear.
Sat
31° 17°
Mostly Clear.
Sun
33° 17°
Partly Cloudy with a 29% chance of rain.
Mon
35° 19°
Mostly Clear with a 39% chance of rain.
Tue
28° 14°
Clear.
Wed
28° 13°
Mostly Clear.
Thu
30° 16°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 34° Mostly Clear 5% 8 mph W 31%
6 PM 35° Partly Cloudy 10% 6 mph NW 32%
7 PM 33° Partly Cloudy 10% 6 mph NNW 40%
8 PM 31° Mostly Clear 10% 7 mph N 51%
9 PM 28° Mostly Clear 10% 9 mph NNE 64%
10 PM 27° Mostly Clear 8% 11 mph NE 70%
11 PM 26° Mostly Clear 8% 11 mph NE 69%
12 AM 24° Mostly Clear 3% 10 mph NE 69%
1 AM 23° Partly Cloudy 3% 9 mph NE 70%
2 AM 23° Partly Cloudy 3% 8 mph NE 72%
3 AM 22° Partly Cloudy 3% 8 mph NE 74%
4 AM 21° Partly Cloudy 3% 7 mph NE 76%
5 AM 17° Partly Cloudy 3% 7 mph NE 79%
6 AM 17° Partly Cloudy 3% 7 mph NE 82%
7 AM 18° Partly Cloudy 3% 8 mph NE 77%
8 AM 19° Mostly Clear 3% 10 mph ENE 67%
9 AM 21° Mostly Clear 3% 10 mph ENE 56%
10 AM 22° Clear 3% 10 mph ENE 48%
11 AM 23° Clear 3% 9 mph ENE 42%
12 PM 26° Clear 3% 9 mph NE 37%
1 PM 27° Clear 3% 9 mph NE 35%
2 PM 27° Clear 3% 9 mph NE 34%
3 PM 28° Mostly Clear 3% 9 mph NE 33%
4 PM 28° Mostly Clear 3% 9 mph NE 34%
15-Day Forecast
Today
7/17
Mostly Clear
10%
17°
36°
Sat
7/18
Mostly Clear
3%
17°
31°
Sun
7/19
Partly Cloudy
29%
17°
33°
Mon
7/20
Mostly Clear
39%
19°
35°
Tue
7/21
Clear
3%
14°
28°
Wed
7/22
Mostly Clear
19%
13°
28°
Thu
7/23
Clear
19%
16°
30°
Fri
7/24
Mostly Cloudy
60%
17°
31°
Sat
7/25
Drizzle
60%
17°
31°
Sun
7/26
Drizzle
60%
17°
33°
Mon
7/27
Drizzle
60%
16°
33°
Tue
7/28
Drizzle
60%
19°
33°
Wed
7/29
Drizzle
60%
18°
33°
Thu
7/30
Drizzle
60%
18°
32°
Fri
7/31
Drizzle
60%
18°
32°
52
Moderate
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
52 AQI 9.6 µg/m³
O3
Ground-level ozone
34 AQI 38 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Sat 52 Moderate 34 52
Sun 42 Good 30 42
Mon 50 Good 30 50
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
SBCAPE1956 J/kg
MLCAPE2283 J/kg
MUCAPE2659 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-5.2
Kinematics
0–6 km Shear12 kt
0–1 km Shear2 kt
Eff. Shear14 kt
0–1 km SRH-5
0–3 km SRH-14
Eff. SRH-14
Storm Motion251° @ 19 kt
0–1 km EHI-0.1
Composite Parameters
Sig. Tornado-0.0
STP (eff)0.0
Supercell0.0
K-Index39.1
Thermo & Levels
PWAT1.69 in
0–3 km LR8.6 °C/km
700–500 LR6.3 °C/km
Total Totals52.8
LCL755 hPa
LFC952 hPa
EL171 hPa
Freezing Lvl14,236 ft