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

McPherson County, South Dakota, United States

Last updated: 5:19 PM CDT  ·  Refresh
34°C
Feels like 34°
Mostly Clear
▲ 36°  /  ▼ 19°
Wind
15 mph S
Humidity
30%
Dew Point
17°
Pressure
27.86 inHg
Visibility
10 mi
UV Index
7.0
Cloud Cover
21%
Sunrise
6:16 AM
Sunset
9:09 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: McPherson County is currently mostly clear at 35°C. Precipitation is likely — peak probability 79% around 5 PM. Atmospheric instability is elevated (CAPE up to 1273 J/kg) — isolated convective development possible. Sunrise: 6:16AM · Sunset: 9:09PM.

Alerts

Heat Advisory
McPherson, SD, Brown, SD, Marshall, SD, Roberts, SD, Edmunds, SD, Day, SD, Clark, SD, Grant, SD, Deuel, SD, Corson, SD, Campbell, SD, Walworth, SD, Dewey, SD, Potter, SD, Faulk, SD, Spink, SD, Stanley, SD, Sully, SD, Hughes, SD, Hyde, SD, Hand, SD, Jones, SD, Lyman, SD, Buffalo, SD
Expires 9:00 PM
60 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
34°
5%
6 PM
34°
23%
7 PM
33°
23%
8 PM
31°
26%
9 PM
28°
26%
10 PM
27°
26%
11 PM
27°
26%
12 AM
26°
27%
1 AM
26°
20%
2 AM
24°
21%
3 AM
23°
21%
4 AM
23°
28%
5 AM
23°
41%
6 AM
19°
56%
7 AM
19°
57%
8 AM
20°
58%
9 AM
21°
47%
10 AM
22°
51%
11 AM
23°
56%
12 PM
24°
59%
1 PM
26°
59%
2 PM
26°
63%
3 PM
26°
63%
4 PM
25°
67%
7-Day Forecast
Today
36° 19°
Partly Cloudy with a 26% chance of rain.
Thu
30° 18°
Mostly Cloudy with a 78% chance of rain.
Fri
29° 16°
Mostly Clear with a 20% chance of rain.
Sat
31° 14°
Clear.
Sun
35° 16°
Clear.
Mon
33° 17°
Partly Cloudy with a 43% chance of rain.
Tue
26° 12°
Mostly Clear.
TimeTempConditionsPrecipWindHumidity
Now 34° Mostly Clear 5% 15 mph S 30%
6 PM 34° Partly Cloudy 23% 14 mph SSE 29%
7 PM 33° Mostly Cloudy 23% 13 mph SSE 31%
8 PM 31° Mostly Cloudy 26% 11 mph SSE 36%
9 PM 28° Mostly Cloudy 26% 9 mph SSE 41%
10 PM 27° Mostly Cloudy 26% 9 mph SSE 46%
11 PM 27° Mostly Cloudy 26% 10 mph SSE 49%
12 AM 26° Mostly Cloudy 27% 11 mph SSE 51%
1 AM 26° Mostly Cloudy 20% 11 mph SSE 54%
2 AM 24° Mostly Cloudy 21% 10 mph SSE 62%
3 AM 23° Overcast 21% 8 mph SSE 70%
4 AM 23° Overcast 28% 8 mph SE 76%
5 AM 23° Overcast 41% 6 mph SE 76%
6 AM 19° Overcast 56% 6 mph SE 77%
7 AM 19° Overcast 57% 7 mph SE 78%
8 AM 20° Overcast 58% 8 mph SE 76%
9 AM 21° Overcast 47% 9 mph SSE 75%
10 AM 22° Overcast 51% 9 mph S 72%
11 AM 23° Mostly Cloudy 56% 8 mph S 67%
12 PM 24° Mostly Cloudy 59% 7 mph S 61%
1 PM 26° Mostly Cloudy 59% 6 mph S 57%
2 PM 26° Mostly Cloudy 63% 6 mph S 57%
3 PM 26° Mostly Cloudy 63% 6 mph S 57%
4 PM 25° Overcast 67% 5 mph SSE 58%
15-Day Forecast
Today
7/29
Partly Cloudy
26%
19°
36°
Thu
7/30
Mostly Cloudy
78%
18°
30°
Fri
7/31
Mostly Clear
20%
16°
29°
Sat
8/1
Clear
3%
14°
31°
Sun
8/2
Clear
3%
16°
35°
Mon
8/3
Partly Cloudy
43%
17°
33°
Tue
8/4
Mostly Clear
17%
12°
26°
Wed
8/5
Clear
18%
11°
27°
Thu
8/6
Mostly Clear
50%
13°
29°
Fri
8/7
Drizzle
51%
17°
31°
Sat
8/8
Drizzle
60%
12°
31°
Sun
8/9
Drizzle
60%
17°
29°
Mon
8/10
Drizzle
60%
17°
30°
Tue
8/11
Drizzle
60%
18°
31°
Wed
8/12
Drizzle
60%
18°
32°
60
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
60 AQI 13.8 µg/m³
O3
Ground-level ozone
54 AQI 57 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Thu 60 Moderate 54 60
Fri 53 Moderate 43 53
Sat 55 Moderate 45 55
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 Wed Jul 29, 21:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 70 80 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1392 J/kg
MLCAPE1393 J/kg
MUCAPE1587 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-5.0
Kinematics
0–6 km Shear29 kt
0–1 km Shear3 kt
Eff. Shear29 kt
0–1 km SRH14
0–3 km SRH-11
Eff. SRH-11
Storm Motion234° @ 20 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index31.3
Thermo & Levels
PWAT1.27 in
0–3 km LR8.8 °C/km
700–500 LR6.9 °C/km
Total Totals53.2
LCL728 hPa
LFC943 hPa
EL210 hPa
Freezing Lvl14,065 ft