Active National Weather Service alert for Hattiesburg, Mississippi 39401: Heat Advisory. Heat Advisory issued August 23 at 12:49PM CDT until August 23 at 8:00PM CDT by NWS Jackson MS Until Sun, 8:00 PM CDT.
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Hattiesburg, Mississippi 39401 weather, straight from the source.

Current conditions, official National Weather Service forecasts and alerts, rain timing, local radar, air quality, wind, humidity, sunrise, sunset, and the latest reported update for Hattiesburg, Mississippi 39401. Always follow local warnings and emergency instructions.

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Weather status

Heat Advisory

Heat Advisory issued August 23 at 12:49PM CDT until August 23 at 8:00PM CDT by NWS Jackson MS Expires Sun, 8:00 PM CDT.

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Hourly forecast

Hattiesburg, Mississippi 39401

Check the latest hourly conditions, seven-day outlook, rain timing, wind, sunrise and sunset for Hattiesburg, Mississippi 39401. Forecasts and alerts update from NOAA and the National Weather Service.

93°Slight Chance Showers And Thunderstorms17% rain
88°Slight Chance Showers And Thunderstorms21% rain
83°Chance Showers And Thunderstorms25% rain
81°Partly Cloudy11% rain
79°Partly Cloudy7% rain
78°Partly Cloudy1% rain
77°Mostly Clear0% rain
77°Mostly Clear0% rain

Next 24 hours

Rain Timeline

Highest chance 53%

Most likely around 4 PM, 5 PM. Expected type: Thunderstorms.

17%Thunderstorms
21%Thunderstorms
25%Thunderstorms
11%None
7%None
1%None
0%None
0%None
0%None
0%None
0%None
0%None
0%None
1%None
1%None
2%None
2%None
3%None
6%None
26%Thunderstorms
26%Thunderstorms
31%Thunderstorms
45%Thunderstorms
53%Thunderstorms

Official NWS outlook

7-Day Forecast

High / low temperatures

Today

! NWS
93°75°

Slight Chance Showers And Thunderstorms then Patchy Fog

Precipitation
25%
Wind
SSW 0 to 5 mph
Sunrise
6:29 AM
Sunset
7:33 PM

Mon

98°74°

Patchy Fog then Chance Showers And Thunderstorms

Precipitation
53%
Wind
WNW 0 to 5 mph
Sunrise
6:29 AM
Sunset
7:32 PM

Tue

94°73°

Showers And Thunderstorms Likely

Precipitation
67%
Wind
WNW 0 to 5 mph
Sunrise
6:30 AM
Sunset
7:31 PM

Wed

97°74°

Sunny then Chance Showers And Thunderstorms

Precipitation
46%
Wind
W 0 to 5 mph
Sunrise
6:30 AM
Sunset
7:30 PM

Thu

93°73°

Showers And Thunderstorms Likely

Precipitation
66%
Wind
WSW 0 to 5 mph
Sunrise
6:31 AM
Sunset
7:28 PM

Fri

95°73°

Chance Showers And Thunderstorms

Precipitation
42%
Wind
NNW 0 to 5 mph
Sunrise
6:32 AM
Sunset
7:27 PM

Sat

96°72°

Mostly Sunny then Chance Showers And Thunderstorms

Precipitation
32%
Wind
NE 0 to 5 mph
Sunrise
6:32 AM
Sunset
7:26 PM

Forecasts, icons, precipitation, wind, and alerts are from the National Weather Service. Sunrise and sunset are calculated locally for the selected coordinates.

Weather for a healthier day

Healthy Weather

Real Feel104°F
Walking is not recommended now

Current official weather conditions may be unsafe for this activity.

WindSW6 mph
Best walk timeBetter weather window: 12 AM–2 AM

Walking: 0% average rain chance, near 77°F. Review the active Heat Advisory.

Official EPA AirNowLocal air qualityHattiesburg, Mississippi 39401
View AQI +
More weather details
Wind gustsNot reported
Rain now17%next hour
Humidity42%current
UV indexCheckingEPA forecast

Wind impact: Light wind with little expected outdoor impact.

Full Healthy Weather guides and reminders →

“Better weather window” is planning guidance based on official NWS data—not a promise of safe conditions. Review active alerts and radar before leaving.

Storm & DetailsGusts, pressure, visibility and official risk outlooksView details +
Wind gustNot reported
Pressure29.94 in
Visibility10.0 mi
Peak rain chance53%
Dew point70°F
Active alerts1

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Active NWS alerts

Weather safety ↗

Moderate · Expected

Heat Advisory

Applies to: Ashley; Chicot; Morehouse; West Carroll; East Carroll; Richland; Madison; Franklin; Catahoula; Tensas; Concordia; Bolivar; Sunflower; Leflore; Washington; Humphreys; Holmes; Issaquena; Sharkey; Yazoo; Madison; Warren; Hinds; Rankin; Claiborne; Copiah; Simpson; Smith; Jasper; Clarke; Jefferson; Adams; Franklin; Lincoln; Lawrence; Jefferson Davis; Covington; Jones; Marion; Lamar; ForrestIssued by: NWS Jackson MSHeat Advisory issued August 23 at 12:49PM CDT until August 23 at 8:00PM CDT by NWS Jackson MS
Alert details* WHAT...Heat index values up to 110 degrees expected. * WHERE...Portions of southeast Arkansas, northeast Louisiana, and central, east central, north central, northwest, south central, southeast, southwest, and west central Mississippi. * WHEN...Until 8 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat related illnesses.
Safety instructionsDrink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.
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