Extreme Heat Warning — Bolivar, MS, Sunflower, MS, Leflore, MS, Washington, MS, Humphreys, MS, 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: 4:20 PM CDT  ·  Refresh
36°C
Feels like 44°
Partly Cloudy
▲ 37°  /  ▼ 24°
Wind
5 mph W
Humidity
54%
Dew Point
22°
Pressure
29.50 inHg
Visibility
10 mi
UV Index
7.0
Cloud Cover
48%
Sunrise
6:13 AM
Sunset
7:58 PM
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WeatherAI™ Analysis

WeatherAI Analysis: Simpson County is currently partly cloudy at 36°C. Precipitation is likely — peak probability 68% around 4 PM. Atmospheric instability is elevated (CAPE up to 2297 J/kg) — isolated convective development possible. Sunrise: 6:13AM · Sunset: 7:58PM.

Alerts

Extreme Heat Warning
Bolivar, MS, Sunflower, MS, Leflore, MS, Washington, MS, Humphreys, MS, 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
51 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
36°
32%
5 PM
35°
28%
6 PM
34°
28%
7 PM
32°
41%
8 PM
31°
40%
9 PM
28°
45%
10 PM
27°
44%
11 PM
27°
31%
12 AM
27°
32%
1 AM
26°
25%
2 AM
26°
26%
3 AM
25°
27%
4 AM
25°
24%
5 AM
24°
24%
6 AM
24°
25%
7 AM
24°
25%
8 AM
27°
26%
9 AM
28°
42%
10 AM
29°
55%
11 AM
32°
59%
12 PM
32°
60%
1 PM
33°
60%
2 PM
33°
60%
3 PM
32°
60%
7-Day Forecast
Today
37° 24°
Mostly Cloudy with a 44% chance of rain.
Thu
37° 23°
Partly Cloudy with a 68% chance of rain.
Fri
34° 23°
Partly Cloudy with a 70% chance of rain.
Sat
34° 23°
Mostly Clear with a 72% chance of rain.
Sun
33° 20°
Clear with a 41% chance of rain.
Mon
34° 18°
Clear with a 35% chance of rain.
Tue
36° 22°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 36° Partly Cloudy 32% 5 mph W 54%
5 PM 35° Partly Cloudy 28% 6 mph WSW 61%
6 PM 34° Mostly Cloudy 28% 7 mph WSW 65%
7 PM 32° Mostly Cloudy 41% 7 mph WSW 69%
8 PM 31° Mostly Cloudy 40% 4 mph SW 71%
9 PM 28° Mostly Cloudy 45% 2 mph SSE 73%
10 PM 27° Mostly Cloudy 44% 3 mph E 74%
11 PM 27° Mostly Cloudy 31% 2 mph SSW 75%
12 AM 27° Partly Cloudy 32% 2 mph WSW 76%
1 AM 26° Partly Cloudy 25% 3 mph W 77%
2 AM 26° Partly Cloudy 26% 3 mph WSW 79%
3 AM 25° Partly Cloudy 27% 3 mph SW 80%
4 AM 25° Partly Cloudy 24% 3 mph SW 82%
5 AM 24° Partly Cloudy 24% 3 mph SW 82%
6 AM 24° Partly Cloudy 25% 3 mph WSW 83%
7 AM 24° Partly Cloudy 25% 4 mph WSW 82%
8 AM 27° Partly Cloudy 26% 4 mph W 77%
9 AM 28° Mostly Clear 42% 4 mph W 72%
10 AM 29° Mostly Clear 55% 5 mph W 67%
11 AM 32° Mostly Clear 59% 6 mph W 63%
12 PM 32° Mostly Clear 60% 6 mph W 60%
1 PM 33° Mostly Clear 60% 6 mph W 60%
2 PM 33° Partly Cloudy 60% 5 mph W 65%
3 PM 32° Partly Cloudy 60% 5 mph W 70%
15-Day Forecast
Today
7/29
Mostly Cloudy
44%
24°
37°
Thu
7/30
Partly Cloudy
68%
23°
37°
Fri
7/31
Partly Cloudy
70%
23°
34°
Sat
8/1
Mostly Clear
72%
23°
34°
Sun
8/2
Clear
41%
20°
33°
Mon
8/3
Clear
35%
18°
34°
Tue
8/4
Clear
19%
22°
36°
Wed
8/5
Clear
35%
21°
36°
Thu
8/6
Drizzle
60%
22°
36°
Fri
8/7
Drizzle
60%
21°
37°
Sat
8/8
Drizzle
60%
21°
37°
Sun
8/9
Drizzle
60%
23°
37°
Mon
8/10
Drizzle
60%
23°
38°
Tue
8/11
Drizzle
60%
23°
37°
Wed
8/12
Drizzle
60%
23°
37°
51
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
51 AQI 9.2 µg/m³
O3
Ground-level ozone
28 AQI 31 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Thu 51 Moderate 28 51
Fri 47 Good 28 47
Sat 55 Moderate 31 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, 20:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE2421 J/kg
MLCAPE2086 J/kg
MUCAPE2421 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-5.6
Kinematics
0–6 km Shear11 kt
0–1 km Shear4 kt
Eff. Shear14 kt
0–1 km SRH8
0–3 km SRH-11
Eff. SRH-11
Storm Motion276° @ 20 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index39.0
Thermo & Levels
PWAT2.35 in
0–3 km LR8.4 °C/km
700–500 LR5.3 °C/km
Total Totals48.3
LCL824 hPa
LFC999 hPa
EL141 hPa
Freezing Lvl16,532 ft