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

Clear Lake, South Dakota

Last updated: 3:32 AM CDT  ·  Refresh
23°C
Feels like 23°
Mostly Clear
▲ 42°  /  ▼ 23°
Wind
10 mph SSW
Humidity
73%
Dew Point
18°
Pressure
27.99 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
14%
Sunrise
6:06 AM
Sunset
8:59 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Clear Lake is currently mostly clear at 23°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 3241 J/kg) — isolated convective development possible. Sunrise: 6:06AM · Sunset: 8:59PM.

Alerts

Heat Advisory
Brown, SD, Marshall, SD, Roberts, SD, Day, SD, Spink, SD, Clark, SD, Codington, SD, Grant, SD, Hamlin, SD, Deuel, SD, Corson, SD, Campbell, SD, McPherson, SD, Walworth, SD, Edmunds, SD, Dewey, SD, Potter, SD, Faulk, SD, Stanley, SD, Sully, SD, Hughes, SD, Hyde, SD, Hand, SD, Jones, SD, Lyman, SD, Buffalo, SD
Expires 9:00 PM
54 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
23°
4%
4 AM
23°
3%
5 AM
21°
3%
6 AM
22°
3%
7 AM
23°
3%
8 AM
25°
4%
9 AM
26°
4%
10 AM
28°
16%
11 AM
29°
23%
12 PM
29°
27%
1 PM
31°
28%
2 PM
32°
30%
3 PM
32°
19%
4 PM
33°
20%
5 PM
33°
20%
6 PM
34°
20%
7 PM
33°
27%
8 PM
31°
39%
9 PM
30°
39%
10 PM
28°
24%
11 PM
27°
24%
12 AM
26°
22%
1 AM
27°
22%
2 AM
27°
23%
7-Day Forecast
Today
42° 23°
Partly Cloudy with a 39% chance of rain.
Mon
39° 23°
Clear with a 26% chance of rain.
Tue
38° 22°
Rain, 24% chance.
Wed
38° 20°
Rain, 59% chance.
Thu
34° 19°
Rain, 82% chance.
Fri
32° 16°
Drizzle, 51% chance.
Sat
32° 14°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 23° Mostly Clear 4% 10 mph SSW 73%
4 AM 23° Mostly Clear 3% 10 mph SSW 74%
5 AM 21° Partly Cloudy 3% 10 mph SSW 70%
6 AM 22° Partly Cloudy 3% 11 mph SSW 66%
7 AM 23° Partly Cloudy 3% 12 mph SSW 62%
8 AM 25° Partly Cloudy 4% 14 mph SSW 58%
9 AM 26° Partly Cloudy 4% 15 mph SSW 55%
10 AM 28° Partly Cloudy 16% 14 mph SW 53%
11 AM 29° Mostly Cloudy 23% 14 mph SW 52%
12 PM 29° Mostly Cloudy 27% 14 mph SW 51%
1 PM 31° Mostly Cloudy 28% 13 mph SW 48%
2 PM 32° Mostly Cloudy 30% 13 mph SSW 45%
3 PM 32° Partly Cloudy 19% 11 mph SSW 44%
4 PM 33° Mostly Clear 20% 10 mph SSW 46%
5 PM 33° Clear 20% 9 mph SSW 49%
6 PM 34° Clear 20% 8 mph SSW 48%
7 PM 33° Clear 27% 8 mph SSW 51%
8 PM 31° Clear 39% 9 mph SSW 55%
9 PM 30° Clear 39% 10 mph SSW 59%
10 PM 28° Clear 24% 11 mph SW 63%
11 PM 27° Clear 24% 11 mph SW 67%
12 AM 26° Clear 22% 11 mph SW 71%
1 AM 27° Clear 22% 11 mph SW 72%
2 AM 27° Clear 23% 10 mph WSW 72%
15-Day Forecast
Today
7/26
Partly Cloudy
39%
23°
42°
Mon
7/27
Clear
26%
23°
39°
Tue
7/28
Rain
24%
22°
38°
Wed
7/29
Rain
59%
20°
38°
Thu
7/30
Rain
82%
19°
34°
Fri
7/31
Drizzle
51%
16°
32°
Sat
8/1
Clear
17%
14°
32°
Sun
8/2
Clear
43%
17°
36°
Mon
8/3
Rain
68%
17°
36°
Tue
8/4
Clear
44%
9°
31°
Wed
8/5
Clear
60%
16°
31°
Thu
8/6
Drizzle
60%
16°
31°
Fri
8/7
Clear
60%
17°
33°
Sat
8/8
Drizzle
60%
19°
33°
Sun
8/9
Clear
25%
18°
33°
54
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
54 AQI 10.6 µg/m³
O3
Ground-level ozone
34 AQI 38 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 54 Moderate 34 54
Mon 46 Good 34 46
Tue 49 Good 40 49
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 Sun Jul 26, 07:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE146 J/kg
MLCAPE190 J/kg
MUCAPE213 J/kg
SBCIN-830 J/kg
MLCIN0 J/kg
Lifted Index-1.6
Kinematics
0–6 km Shear36 kt
0–1 km Shear22 kt
Eff. Shear40 kt
0–1 km SRH137
0–3 km SRH125
Eff. SRH14
Storm Motion276° @ 32 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.1
STP (eff)0.0
Supercell0.1
K-Index35.1
Thermo & Levels
PWAT1.47 in
0–3 km LR4.4 °C/km
700–500 LR7.5 °C/km
Total Totals50.8
LCL882 hPa
LFC603 hPa
EL316 hPa
Freezing Lvl13,885 ft