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

79°F

26°C

Humidity 90%
Wind Speed S 7 mph
Barometer 29.87 in (1010.8 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 17 Jun 9:53 am CDT
Extended Forecast for

7 Miles E Tangipahoa LA

Flood Watch June 17, 10:27am until June 19, 07:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch June 17, 10:27am until June 19, 07:00am

    NOW until 7:00am Fri

    Flood Watch

  • Today

    High: 85 °F

    Chance
    T-storms and
    Patchy Fog

  • Tonight

    Tonight: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3am. Some of the storms could produce heavy rainfall.  Low around 74. Breezy, with a south wind 15 to 20 mph decreasing to 10 to 15 mph.  Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.

    Low: 74 °F

    Heavy Rain
    and Breezy

  • Thursday

    Thursday: Showers and possibly a thunderstorm before 3pm, then showers and thunderstorms likely, mainly between 3pm and 4pm. Some of the storms could produce heavy rainfall.  High near 87. South wind 10 to 15 mph.  Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    High: 87 °F

    Heavy Rain
    then T-storms

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms before 1am.  Partly cloudy, with a low around 77. South wind around 5 mph.

    Low: 77 °F

    Chance
    T-storms then
    Chance
    Showers

  • Juneteenth

    Juneteenth: Showers and possibly a thunderstorm.  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: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 75. Calm wind.

    Low: 75 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm.  Partly sunny, 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

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 75. Calm wind.

    Low: 75 °F

    Slight Chance
    T-storms

Detailed Forecast

Today
A 50 percent chance of showers and thunderstorms. Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 85. South wind 5 to 15 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3am. Some of the storms could produce heavy rainfall. Low around 74. Breezy, with a south wind 15 to 20 mph decreasing to 10 to 15 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.
Thursday
Showers and possibly a thunderstorm before 3pm, then showers and thunderstorms likely, mainly between 3pm and 4pm. Some of the storms could produce heavy rainfall. High near 87. South wind 10 to 15 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Thursday Night
A 40 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 77. South wind around 5 mph.
Juneteenth
Showers and possibly a thunderstorm. High near 91. Southwest wind around 5 mph. Chance of precipitation is 80%.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 75. Calm wind.
Saturday
Showers likely and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. Partly sunny, with a high near 90. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 70%.
Saturday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 75. Calm wind.
Sunday
A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 91. Southwest wind 5 to 10 mph.
Sunday Night
Partly cloudy, with a low around 75. South wind 5 to 10 mph.
Monday
Mostly sunny, with a high near 94. Southwest wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 75. Southwest wind around 5 mph becoming calm in the evening.
Tuesday
A chance of showers and thunderstorms. Sunny, with a high near 94. Calm wind becoming west around 5 mph in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles E Tangipahoa LA
 30.86°N 90.39°W
5:31 am CDT Jun 17, 2026
10am CDT Jun 17, 2026-6pm CDT Jun 23, 2026
 
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Additional Resources

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Hourly Weather Forecast

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