Tropical Storm Arthur and Heavy Rainfall in the South; Severe Weather in the Midwest

An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana tonight. Intense tornadoes, swaths of damaging gusts, and hail in excess of 2 inches in diameter possible. Tropical Storm Arthur will continue to produce strong winds across coastal Upper Texas and Louisiana tonight, as well as potentially life-threatening flooding across southern Louisiana into Mississippi. 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.

Mostly Cloudy

76°F

24°C

Humidity 94%
Wind Speed S 16 G 30 mph
Barometer 29.77 in (1007.5 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index76°F (24°C)
Last update 18 Jun 12:53 am CDT
Extended Forecast for

4 Miles E Osyka MS

Flood Watch June 18, 01:46am until June 19, 07:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch June 18, 01:46am until June 19, 07:00am

    NOW until 7:00am Fri

    Flood Watch

  • Overnight

    Low: 74 °F

    Heavy Rain

  • Thursday

    Thursday: Showers and possibly a thunderstorm before 1pm, then showers and thunderstorms likely, mainly between 1pm and 4pm.  High near 87. South wind 10 to 15 mph, with gusts as high as 30 mph.  Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    High: 87 °F

    Showers then
    T-storms
    Likely

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 10pm, then a slight chance of showers and thunderstorms after 5am.  Mostly cloudy, with a low around 77. South wind around 5 mph.  Chance of precipitation is 40%.

    Low: 77 °F

    Chance
    T-storms then
    Slight Chance
    T-storms

  • Juneteenth

    Juneteenth: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Some of the storms could produce heavy rainfall.  Mostly sunny, with a high near 92. Heat index values as high as 106. Southwest wind around 5 mph.

    High: 92 °F

    Heavy Rain

  • 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

  • Saturday

    Saturday: A chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then showers and thunderstorms likely after 4pm.  Partly sunny, with a high near 91. Calm wind becoming south around 5 mph in the afternoon.  Chance of precipitation is 60%.

    High: 91 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely, mainly before 7pm.  Mostly cloudy, with a low around 75. South wind around 5 mph becoming calm.  Chance of precipitation is 60%.

    Low: 75 °F

    T-storms
    Likely

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 92. Southwest wind 5 to 10 mph.

    High: 92 °F

    Slight Chance
    T-storms

Detailed Forecast

Overnight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Some of the storms could produce heavy rainfall. Low around 74. South wind 10 to 15 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Thursday
Showers and possibly a thunderstorm before 1pm, then showers and thunderstorms likely, mainly between 1pm and 4pm. High near 87. South wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Thursday Night
A chance of showers and thunderstorms before 10pm, then a slight chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 77. South wind around 5 mph. Chance of precipitation is 40%.
Juneteenth
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Some of the storms could produce heavy rainfall. Mostly sunny, with a high near 92. Heat index values as high as 106. Southwest wind around 5 mph.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 75. Calm wind.
Saturday
A chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then showers and thunderstorms likely after 4pm. Partly sunny, with a high near 91. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 60%.
Saturday Night
Showers and thunderstorms likely, mainly before 7pm. Mostly cloudy, with a low around 75. South wind around 5 mph becoming calm. Chance of precipitation is 60%.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92. Southwest wind 5 to 10 mph.
Sunday Night
Partly cloudy, with a low around 76. South wind 5 to 10 mph.
Monday
Mostly sunny and hot, with a high near 95. Southwest wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 76. Southwest wind around 5 mph becoming calm in the evening.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 94. 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 74. Calm wind.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 92. Calm wind becoming west around 5 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Osyka MS
 31.02°N 90.41°W
1:26 am CDT Jun 18, 2026
1am CDT Jun 18, 2026-6pm CDT Jun 24, 2026
 
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Additional Resources

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Hourly Weather Forecast

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