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: 5:10 AM CDT  ·  Refresh
22°C
Feels like 22°
Partly Cloudy
▲ 37°  /  ▼ 23°
Wind
10 mph SSW
Humidity
77%
Dew Point
17°
Pressure
27.98 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
42%
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 partly cloudy at 22°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 3419 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
22°
3%
6 AM
21°
19%
7 AM
22°
20%
8 AM
23°
21%
9 AM
26°
21%
10 AM
27°
31%
11 AM
29°
31%
12 PM
30°
26%
1 PM
31°
28%
2 PM
33°
18%
3 PM
33°
18%
4 PM
33°
23%
5 PM
34°
28%
6 PM
34°
28%
7 PM
33°
28%
8 PM
31°
34%
9 PM
29°
38%
10 PM
29°
22%
11 PM
28°
19%
12 AM
26°
19%
1 AM
25°
17%
2 AM
26°
18%
3 AM
26°
18%
4 AM
24°
20%
7-Day Forecast
Today
37° 23°
Partly Cloudy with a 34% chance of rain.
Mon
36° 23°
Partly Cloudy with a 20% chance of rain.
Tue
36° 22°
Mostly Clear with a 22% chance of rain.
Wed
37° 21°
Clear with a 46% chance of rain.
Thu
34° 19°
Rain, 72% chance.
Fri
32° 17°
Mostly Clear with a 56% chance of rain.
Sat
32° 16°
Partly Cloudy.
TimeTempConditionsPrecipWindHumidity
Now 22° Partly Cloudy 3% 10 mph SSW 77%
6 AM 21° Partly Cloudy 19% 10 mph SSW 70%
7 AM 22° Partly Cloudy 20% 10 mph SSW 67%
8 AM 23° Partly Cloudy 21% 12 mph SSW 62%
9 AM 26° Partly Cloudy 21% 13 mph SSW 57%
10 AM 27° Partly Cloudy 31% 13 mph SSW 54%
11 AM 29° Mostly Cloudy 31% 12 mph SSW 53%
12 PM 30° Mostly Cloudy 26% 11 mph SW 51%
1 PM 31° Mostly Cloudy 28% 11 mph SW 50%
2 PM 33° Mostly Cloudy 18% 10 mph SSW 47%
3 PM 33° Partly Cloudy 18% 10 mph SSW 46%
4 PM 33° Partly Cloudy 23% 9 mph SSW 44%
5 PM 34° Mostly Clear 28% 8 mph SSW 47%
6 PM 34° Mostly Clear 28% 7 mph SSW 49%
7 PM 33° Mostly Clear 28% 7 mph SW 53%
8 PM 31° Mostly Clear 34% 7 mph SW 58%
9 PM 29° Mostly Clear 38% 8 mph SW 64%
10 PM 29° Mostly Clear 22% 9 mph SW 69%
11 PM 28° Clear 19% 9 mph SW 73%
12 AM 26° Clear 19% 9 mph WSW 76%
1 AM 25° Clear 17% 9 mph WSW 79%
2 AM 26° Clear 18% 8 mph W 79%
3 AM 26° Clear 18% 8 mph W 79%
4 AM 24° Mostly Clear 20% 8 mph W 78%
15-Day Forecast
Today
7/26
Partly Cloudy
34%
23°
37°
Mon
7/27
Partly Cloudy
20%
23°
36°
Tue
7/28
Mostly Clear
22%
22°
36°
Wed
7/29
Clear
46%
21°
37°
Thu
7/30
Rain
72%
19°
34°
Fri
7/31
Mostly Clear
56%
17°
32°
Sat
8/1
Partly Cloudy
18%
16°
32°
Sun
8/2
Clear
34%
18°
36°
Mon
8/3
Rain
54%
18°
36°
Tue
8/4
Overcast
43%
13°
31°
Wed
8/5
Drizzle
60%
16°
31°
Thu
8/6
Drizzle
60%
16°
31°
Fri
8/7
Clear
25%
17°
33°
Sat
8/8
Drizzle
60%
19°
33°
Sun
8/9
Drizzle
60%
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, 08:00'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
SBCAPE0 J/kg
MLCAPE137 J/kg
MUCAPE175 J/kg
SBCIN-997 J/kg
MLCIN0 J/kg
Lifted Index0.2
Kinematics
0–6 km Shear33 kt
0–1 km Shear26 kt
Eff. Shear39 kt
0–1 km SRH160
0–3 km SRH185
Eff. SRH75
Storm Motion273° @ 32 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.3
K-Index35.1
Thermo & Levels
PWAT1.39 in
0–3 km LR4.1 °C/km
700–500 LR7.4 °C/km
Total Totals51.0
LCL880 hPa
LFC554 hPa
EL540 hPa
Freezing Lvl13,878 ft