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

Excessive Rainfall and Potential Tropical Cyclone in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce locally considerable flash flooding over parts of the northwestern Gulf Coast, lower Mississippi River Valley, and Deep South through Thursday. Potential Tropical Cyclone One is forecast to become a tropical storm (Arthur) as it moves along or just off the northwestern Gulf coast through Wednesday. An outbreak of severe weather is forecast in the Midwest Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

McComb, McComb / Pike County / John E Lewis Field Airport (KMCB)

Lat: 31.18°NLon: 90.47°WElev: 413ft.

Overcast

74°F

23°C

Humidity 94%
Wind Speed SW 6 mph
Barometer 29.85 in (1010.1 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 16 Jun 5:53 pm CDT
Extended Forecast for

7 Miles NNW Mount Hermon LA

Flood Watch June 16, 06:45pm until June 19, 07:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch June 16, 06:45pm until June 19, 07:00am

    NOW until 7:00am Fri

    Flood Watch

  • Tonight

    Low: 72 °F

    Chance
    T-storms and
    Patchy Fog

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms, mainly after 7am. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 86. South wind 5 to 10 mph, with gusts as high as 25 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Chance
    T-storms and
    Patchy Fog

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms before 3am, then showers and possibly a thunderstorm, mainly after 3am. Low around 74. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.

    Low: 74 °F

    Chance
    T-storms then
    Showers

  • Thursday

    Thursday: Showers and possibly a thunderstorm before 4pm, then showers and thunderstorms after 4pm. High near 86. South wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 100%.

    High: 86 °F

    Showers then
    T-storms

  • Thursday Night

    Thursday Night: Showers and thunderstorms before 7pm, then showers likely and possibly a thunderstorm between 7pm and 1am, then a chance of showers and thunderstorms after 1am. Low around 75. South wind 5 to 10 mph. Chance of precipitation is 80%.

    Low: 75 °F

    T-storms then
    Showers
    Likely

  • Juneteenth

    Juneteenth: Showers likely and possibly a thunderstorm, then showers and thunderstorms after 1pm. High near 91. Southwest wind around 5 mph. Chance of precipitation is 80%.

    High: 91 °F

    Showers
    Likely then
    T-storms

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 74. Calm wind. Chance of precipitation is 60%.

    Low: 74 °F

    Showers
    Likely

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. Mostly cloudy, with a high near 90. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 70%.

    High: 90 °F

    Showers
    Likely then
    T-storms
    Likely

Detailed Forecast

Tonight
A chance of showers and thunderstorms before 9pm, then a slight chance of showers after 5am. Patchy fog before 8pm, then patchy fog after 3am. Otherwise, mostly cloudy, with a low around 72. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.
Wednesday
A 50 percent chance of showers and thunderstorms, mainly after 7am. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 86. South wind 5 to 10 mph, with gusts as high as 25 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and thunderstorms before 3am, then showers and possibly a thunderstorm, mainly after 3am. Low around 74. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Thursday
Showers and possibly a thunderstorm before 4pm, then showers and thunderstorms after 4pm. High near 86. South wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 100%.
Thursday Night
Showers and thunderstorms before 7pm, then showers likely and possibly a thunderstorm between 7pm and 1am, then a chance of showers and thunderstorms after 1am. Low around 75. South wind 5 to 10 mph. Chance of precipitation is 80%.
Juneteenth
Showers likely and possibly a thunderstorm, then showers and thunderstorms after 1pm. High near 91. Southwest wind around 5 mph. Chance of precipitation is 80%.
Friday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 74. Calm wind. Chance of precipitation is 60%.
Saturday
Showers likely and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. Mostly cloudy, with a high near 90. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 70%.
Saturday Night
A slight chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 74. Calm wind.
Sunday
A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 92. Light south wind increasing to 5 to 10 mph in the morning.
Sunday Night
Partly cloudy, with a low around 75. South wind around 5 mph.
Monday
Mostly sunny, with a high near 94. Southwest wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 75. 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.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles NNW Mount Hermon LA
 31.04°N 90.33°W
Last Update:
5:18 pm CDT Jun 16, 2026
Forecast Valid:
6pm CDT Jun 16, 2026-6pm CDT Jun 23, 2026
 
Forecast Discussion
 
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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