Heat Advisory — Ashley, AR, Chicot, AR, Morehouse, LA, West Carroll, LA, East Carroll, LA, Richland, LA, Madison, LA, Franklin, LA, Catahoula, LA, Tensas, LA, Concordia, LA, Grenada, MS, Carroll, MS, Montgomery, MS, Webster, MS, Clay, MS, Lowndes, MS, Choctaw, MS, Oktibbeha, MS, Washington, MS, Humphreys, MS, Holmes, MS, Attala, MS, Winston, MS, Noxubee, MS, Issaquena, MS, Sharkey, MS, Yazoo, MS, Madison, MS, Leake, MS, Neshoba, MS, Kemper, MS, Warren, MS, Hinds, MS, Rankin, MS, Scott, MS, Newton, MS, Lauderdale, MS, Claiborne, MS, Copiah, MS, Simpson, MS, Smith, MS, Jasper, MS, Clarke, MS, Jefferson, MS, Adams, MS, Franklin, MS, Lincoln, MS, Lawrence, MS, Jefferson Davis, MS, Covington, MS, Jones, MS, Marion, MS, Lamar, MS, Forrest, MS 9:00 PM Excessive Heat Warning — Bolivar, MS, Sunflower, MS, Leflore, MS, Grenada, MS, Carroll, MS, Montgomery, MS, Webster, MS, Clay, MS, Lowndes, MS, Choctaw, MS, Oktibbeha, MS, Washington, MS, Humphreys, MS, Holmes, MS, Attala, MS, Winston, MS, Noxubee, MS, Issaquena, MS, Sharkey, MS, Yazoo, MS, Madison, MS, Leake, MS, Neshoba, MS, Kemper, MS, Warren, MS, Hinds, MS, Rankin, MS, Scott, MS, Newton, MS, Lauderdale, MS, Claiborne, MS, Copiah, MS, Simpson, MS, Smith, MS, Jasper, MS, Clarke, MS, Jefferson, MS, Adams, MS, Franklin, MS, Lincoln, MS, Lawrence, MS, Jefferson Davis, MS, Covington, MS, Jones, MS, Marion, MS, Lamar, MS, Forrest, MS 9:00 PM

Simpson County, Mississippi, United States

Last updated: 8:56 AM CDT  ·  Refresh
28°C
Feels like 31°
Clear
▲ 36°  /  ▼ 23°
Wind
7 mph W
Humidity
73%
Dew Point
23°
Pressure
29.70 inHg
Visibility
9 mi
UV Index
6.7
Cloud Cover
7%
Sunrise
6:11 AM
Sunset
8:00 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Simpson County is currently clear at 28°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1190 J/kg) — isolated convective development possible. Sunrise: 6:11AM · Sunset: 8:00PM.

Alerts

Heat Advisory
Ashley, AR, Chicot, AR, Morehouse, LA, West Carroll, LA, East Carroll, LA, Richland, LA, Madison, LA, Franklin, LA, Catahoula, LA, Tensas, LA, Concordia, LA, Grenada, MS, Carroll, MS, Montgomery, MS, Webster, MS, Clay, MS, Lowndes, MS, Choctaw, MS, Oktibbeha, MS, Washington, MS, Humphreys, MS, Holmes, MS, Attala, MS, Winston, MS, Noxubee, MS, Issaquena, MS, Sharkey, MS, Yazoo, MS, Madison, MS, Leake, MS, Neshoba, MS, Kemper, MS, Warren, MS, Hinds, MS, Rankin, MS, Scott, MS, Newton, MS, Lauderdale, MS, Claiborne, MS, Copiah, MS, Simpson, MS, Smith, MS, Jasper, MS, Clarke, MS, Jefferson, MS, Adams, MS, Franklin, MS, Lincoln, MS, Lawrence, MS, Jefferson Davis, MS, Covington, MS, Jones, MS, Marion, MS, Lamar, MS, Forrest, MS
Expires 9:00 PM
Excessive Heat Warning
Bolivar, MS, Sunflower, MS, Leflore, MS, Grenada, MS, Carroll, MS, Montgomery, MS, Webster, MS, Clay, MS, Lowndes, MS, Choctaw, MS, Oktibbeha, MS, Washington, MS, Humphreys, MS, Holmes, MS, Attala, MS, Winston, MS, Noxubee, MS, Issaquena, MS, Sharkey, MS, Yazoo, MS, Madison, MS, Leake, MS, Neshoba, MS, Kemper, MS, Warren, MS, Hinds, MS, Rankin, MS, Scott, MS, Newton, MS, Lauderdale, MS, Claiborne, MS, Copiah, MS, Simpson, MS, Smith, MS, Jasper, MS, Clarke, MS, Jefferson, MS, Adams, MS, Franklin, MS, Lincoln, MS, Lawrence, MS, Jefferson Davis, MS, Covington, MS, Jones, MS, Marion, MS, Lamar, MS, Forrest, MS
Expires 9:00 PM
46 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
28°
11%
9 AM
30°
14%
10 AM
32°
14%
11 AM
33°
7%
12 PM
34°
3%
1 PM
34°
3%
2 PM
35°
3%
3 PM
35°
3%
4 PM
34°
3%
5 PM
36°
3%
6 PM
35°
3%
7 PM
34°
3%
8 PM
32°
3%
9 PM
29°
3%
10 PM
28°
5%
11 PM
27°
5%
12 AM
27°
5%
1 AM
26°
5%
2 AM
26°
5%
3 AM
25°
5%
4 AM
25°
5%
5 AM
25°
9%
6 AM
24°
9%
7 AM
26°
5%
7-Day Forecast
Today
36° 23°
Mostly Clear.
Mon
37° 24°
Partly Cloudy.
Tue
38° 24°
Clear.
Wed
38° 23°
Mostly Clear with a 40% chance of rain.
Thu
37° 22°
Clear with a 64% chance of rain.
Fri
33° 22°
Rain, 82% chance.
Sat
36° 22°
Drizzle, 71% chance.
TimeTempConditionsPrecipWindHumidity
Now 28° Clear 11% 7 mph W 73%
9 AM 30° Clear 14% 9 mph W 64%
10 AM 32° Clear 14% 8 mph WNW 58%
11 AM 33° Partly Cloudy 7% 8 mph WNW 52%
12 PM 34° Partly Cloudy 3% 8 mph WNW 46%
1 PM 34° Mostly Clear 3% 7 mph WNW 44%
2 PM 35° Mostly Clear 3% 7 mph WNW 44%
3 PM 35° Mostly Clear 3% 7 mph W 43%
4 PM 34° Clear 3% 7 mph W 45%
5 PM 36° Partly Cloudy 3% 7 mph W 47%
6 PM 35° Partly Cloudy 3% 6 mph W 49%
7 PM 34° Partly Cloudy 3% 5 mph W 53%
8 PM 32° Partly Cloudy 3% 5 mph WSW 57%
9 PM 29° Partly Cloudy 3% 4 mph WSW 60%
10 PM 28° Mostly Clear 5% 4 mph WSW 63%
11 PM 27° Mostly Clear 5% 5 mph WSW 65%
12 AM 27° Clear 5% 5 mph WSW 68%
1 AM 26° Clear 5% 5 mph WSW 71%
2 AM 26° Clear 5% 5 mph WSW 74%
3 AM 25° Mostly Clear 5% 5 mph WSW 77%
4 AM 25° Mostly Clear 5% 5 mph WSW 79%
5 AM 25° Partly Cloudy 9% 5 mph WSW 81%
6 AM 24° Partly Cloudy 9% 5 mph WSW 83%
7 AM 26° Partly Cloudy 5% 5 mph WSW 77%
15-Day Forecast
Today
7/26
Mostly Clear
11%
23°
36°
Mon
7/27
Partly Cloudy
6%
24°
37°
Tue
7/28
Clear
7%
24°
38°
Wed
7/29
Mostly Clear
40%
23°
38°
Thu
7/30
Clear
64%
22°
37°
Fri
7/31
Rain
82%
22°
33°
Sat
8/1
Drizzle
71%
22°
36°
Sun
8/2
Rain
90%
22°
34°
Mon
8/3
Rain
68%
22°
34°
Tue
8/4
Rain
68%
22°
36°
Wed
8/5
Drizzle
64%
22°
37°
Thu
8/6
Drizzle
60%
23°
37°
Fri
8/7
Drizzle
60%
23°
37°
Sat
8/8
Drizzle
60%
22°
36°
Sun
8/9
Drizzle
60%
23°
36°
46
Good
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
46 AQI 8.4 µg/m³
O3
Ground-level ozone
28 AQI 31 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 46 Good 28 46
Tue 41 Good 31 41
Wed 42 Good 30 42
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, 11:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1204 J/kg
MLCAPE791 J/kg
MUCAPE1204 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-2.3
Kinematics
0–6 km Shear19 kt
0–1 km Shear12 kt
Eff. Shear25 kt
0–1 km SRH44
0–3 km SRH28
Eff. SRH28
Storm Motion309° @ 23 kt
0–1 km EHI0.3
Composite Parameters
Sig. Tornado0.2
STP (eff)0.1
Supercell0.4
K-Index24.9
Thermo & Levels
PWAT1.77 in
0–3 km LR5.6 °C/km
700–500 LR5.2 °C/km
Total Totals37.2
LCL940 hPa
LFC1006 hPa
EL176 hPa
Freezing Lvl16,670 ft