National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Rainfall Along the Central Gulf Coast; Thunderstorms from the Plains to the Central Appalachians; Heat Across the East

A system in the Gulf could produce heavy rainfall and flash flooding for portions of the north-central Gulf Coast into Saturday. Widespread showers and thunderstorms are likely this afternoon into Friday from Central Plains into the mid-Mississippi Valley, Ohio Valley and Central Appalachians. Dangerous heat is expected from the Lower Mississippi Valley to the Mid-Atlantic today. Read More >

Hazardous Weather Conditions

Current conditions at

Gulfport - Gulfport-Biloxi International Airport (KGPT)

Lat: 30.41°NLon: 89.08°WElev: 26ft.

A Few Clouds

87°F

31°C

Humidity 70%
Wind Speed SE 17 G 24 mph
Barometer 29.94 in (1013.7 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index98°F (37°C)
Last update 17 Jul 3:53 pm CDT
Extended Forecast for

5 Miles NNW Lyman MS

Flood Watch July 17, 04:21pm until July 19, 01:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch July 17, 04:21pm until July 19, 01:00am

    NOW until 1:00am Sat

    Flood Watch

  • This Afternoon

    High: 83 °F

    T-storms
    Likely

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 76. Southeast wind around 5 mph.

    Low: 76 °F

    Chance
    T-storms

  • Friday

    Friday: Showers and thunderstorms. Some of the storms could produce heavy rainfall. High near 87. South wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.

    High: 87 °F

    Heavy Rain

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 75. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 75 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Saturday

    Saturday: Showers and thunderstorms, mainly between 1pm and 4pm, then showers and possibly a thunderstorm after 4pm. High near 90. Light south wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 80%.

    High: 90 °F

    Chance
    T-storms then
    T-storms

  • Saturday Night

    Saturday Night: Thunderstorms likely before 7pm. Mostly clear, with a low around 75. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.

    Low: 75 °F

    T-storms
    Likely then
    Mostly Clear

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 93. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 93 °F

    Sunny then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 76. South wind around 5 mph becoming calm in the evening.

    Low: 76 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Showers and thunderstorms likely. Mostly cloudy, with a steady temperature around 83. Southeast wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 76. Southeast wind around 5 mph.
Friday
Showers and thunderstorms. Some of the storms could produce heavy rainfall. High near 87. South wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.
Friday Night
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 75. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Saturday
Showers and thunderstorms, mainly between 1pm and 4pm, then showers and possibly a thunderstorm after 4pm. High near 90. Light south wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 80%.
Saturday Night
Thunderstorms likely before 7pm. Mostly clear, with a low around 75. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Sunday
A 40 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 93. Calm wind becoming southwest around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 76. South wind around 5 mph becoming calm in the evening.
Monday
A chance of showers and thunderstorms after 1pm. Sunny, with a high near 94. Calm wind becoming southwest around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 76. South wind around 5 mph becoming calm in the evening.
Tuesday
A chance of showers and thunderstorms. Mostly sunny and hot, with a high near 95. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 76. Southwest wind around 5 mph becoming calm.
Wednesday
Showers and thunderstorms likely. Mostly sunny, with a high near 94. Calm wind becoming east around 5 mph in the afternoon.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 75. South wind around 5 mph becoming calm.
Thursday
Showers and thunderstorms likely. Mostly sunny, with a high near 92. Calm wind becoming southeast around 5 mph in the afternoon.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNW Lyman MS
 30.57°N 89.16°W
Last Update:
1:41 pm CDT Jul 17, 2025
Forecast Valid:
4pm CDT Jul 17, 2025-6pm CDT Jul 24, 2025
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation