Heat Advisory — Catahoula, LA, Concordia, LA, Adams, MS 10:00 AM Extreme Heat Warning — West Carroll, LA, East Carroll, LA, Madison, LA, Tensas, LA, Holmes, MS, Issaquena, MS, Sharkey, MS, Yazoo, MS, Madison, MS, Warren, MS, Hinds, MS, Rankin, MS, Claiborne, MS, Copiah, MS, Simpson, MS, Jefferson, MS 9:00 PM

Simpson County, Mississippi, United States

Last updated: 5:21 AM CDT  ·  Refresh
25°C
Feels like 30°
Clear
▲ 36°  /  ▼ 23°
Wind
1 mph ENE
Humidity
84%
Dew Point
23°
Pressure
29.50 inHg
Visibility
9 mi
UV Index
0.0
Cloud Cover
2%
Sunrise
6:08 AM
Sunset
8:03 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Simpson County is currently clear at 25°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2001 J/kg) — isolated convective development possible. Sunrise: 6:08AM · Sunset: 8:03PM.

Alerts

Heat Advisory
Catahoula, LA, Concordia, LA, Adams, MS
Expires 10:00 AM
Extreme Heat Warning
West Carroll, LA, East Carroll, LA, Madison, LA, Tensas, LA, Holmes, MS, Issaquena, MS, Sharkey, MS, Yazoo, MS, Madison, MS, Warren, MS, Hinds, MS, Rankin, MS, Claiborne, MS, Copiah, MS, Simpson, MS, Jefferson, MS
Expires 9:00 PM
67 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
25°
23%
6 AM
24°
36%
7 AM
25°
33%
8 AM
27°
44%
9 AM
30°
46%
10 AM
32°
44%
11 AM
32°
33%
12 PM
33°
32%
1 PM
34°
20%
2 PM
35°
20%
3 PM
36°
25%
4 PM
35°
28%
5 PM
36°
28%
6 PM
36°
3%
7 PM
34°
3%
8 PM
33°
3%
9 PM
29°
3%
10 PM
28°
3%
11 PM
28°
3%
12 AM
27°
3%
1 AM
26°
3%
2 AM
26°
3%
3 AM
26°
3%
4 AM
25°
3%
7-Day Forecast
Today
36° 23°
Mostly Clear with a 44% chance of rain.
Wed
37° 23°
Mostly Clear with a 45% chance of rain.
Thu
36° 24°
Drizzle, 51% chance.
Fri
35° 24°
Partly Cloudy with a 69% chance of rain.
Sat
36° 23°
Rain, 71% chance.
Sun
37° 23°
Drizzle, 52% chance.
Mon
38° 23°
Mostly Clear.
TimeTempConditionsPrecipWindHumidity
Now 25° Clear 23% 1 mph ENE 84%
6 AM 24° Clear 36% 2 mph ENE 84%
7 AM 25° Clear 33% 2 mph ENE 83%
8 AM 27° Clear 44% 2 mph ENE 76%
9 AM 30° Mostly Clear 46% 3 mph NE 69%
10 AM 32° Mostly Clear 44% 4 mph NNE 66%
11 AM 32° Partly Cloudy 33% 5 mph NNE 64%
12 PM 33° Partly Cloudy 32% 6 mph NNE 60%
1 PM 34° Partly Cloudy 20% 7 mph NNE 57%
2 PM 35° Partly Cloudy 20% 7 mph NNE 56%
3 PM 36° Partly Cloudy 25% 8 mph NNE 56%
4 PM 35° Mostly Clear 28% 8 mph NNE 56%
5 PM 36° Mostly Clear 28% 7 mph NNE 58%
6 PM 36° Mostly Clear 3% 7 mph NE 60%
7 PM 34° Mostly Clear 3% 6 mph NE 63%
8 PM 33° Mostly Clear 3% 5 mph NE 66%
9 PM 29° Mostly Clear 3% 5 mph NE 69%
10 PM 28° Mostly Clear 3% 5 mph ENE 72%
11 PM 28° Mostly Clear 3% 5 mph ENE 75%
12 AM 27° Clear 3% 5 mph E 77%
1 AM 26° Clear 3% 5 mph E 80%
2 AM 26° Mostly Clear 3% 5 mph ENE 82%
3 AM 26° Mostly Clear 3% 4 mph ENE 84%
4 AM 25° Partly Cloudy 3% 5 mph ENE 86%
15-Day Forecast
Today
7/21
Mostly Clear
44%
23°
36°
Wed
7/22
Mostly Clear
45%
23°
37°
Thu
7/23
Drizzle
51%
24°
36°
Fri
7/24
Partly Cloudy
69%
24°
35°
Sat
7/25
Rain
71%
23°
36°
Sun
7/26
Drizzle
52%
23°
37°
Mon
7/27
Mostly Clear
13%
23°
38°
Tue
7/28
Clear
15%
24°
39°
Wed
7/29
Drizzle
59%
24°
39°
Thu
7/30
Thunderstorm
54%
23°
37°
Fri
7/31
Drizzle
90%
23°
37°
Sat
8/1
Rain
90%
23°
38°
Sun
8/2
Drizzle
60%
23°
37°
Mon
8/3
Drizzle
60%
22°
37°
Tue
8/4
Drizzle
60%
23°
36°
67
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
67 AQI 17.6 µg/m³
O3
Ground-level ozone
31 AQI 34 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 67 Moderate 31 67
Wed 63 Moderate 25 63
Thu 51 Moderate 27 51
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 Tue Jul 21, 09:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE532 J/kg
MLCAPE1070 J/kg
MUCAPE1632 J/kg
SBCIN-160 J/kg
MLCIN0 J/kg
Lifted Index-1.3
Kinematics
0–6 km Shear17 kt
0–1 km Shear8 kt
Eff. Shear23 kt
0–1 km SRH1
0–3 km SRH-21
Eff. SRH-21
Storm Motion354° @ 23 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index33.8
Thermo & Levels
PWAT2.08 in
0–3 km LR4.7 °C/km
700–500 LR5.2 °C/km
Total Totals41.4
LCL972 hPa
LFC759 hPa
EL196 hPa
Freezing Lvl17,185 ft