Risks of Severe Thunderstorms and Excessive Rainfall in the Central U.S.; Fire Weather Concerns in Alaska and Southwest

An expansive storm system will bring widespread storms with a threat for flash flooding and severe weather to much of the central to eastern U.S. into early this week. Critical fire weather conditions are expected across interior Alaska this weekend. Elevated fire conditions also expected in the Southwest U.S.. Conditions will remain uncomfortably hot across the southern Plains and the Southeast. Read More >

Current conditions at

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

Lat: 31.18°NLon: 90.47°WElev: 413ft.

Fair

74°F

23°C

Humidity 94%
Wind Speed Calm
Barometer 29.99 in (1014.9 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 20 Jun 9:53 pm CDT
Extended Forecast for

4 Miles NNE Mount Hermon LA

  • Tonight

    Tonight: A 20 percent chance of showers after 11pm.  Mostly cloudy, with a low around 74. Calm wind.

    Low: 74 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: A chance of showers and thunderstorms before 3pm, then a slight chance of showers.  Mostly sunny, with a high near 90. Light south wind becoming southwest 5 to 10 mph in the morning.  Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 90 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 76. South wind around 5 mph.

    Low: 76 °F

    Partly Cloudy

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 94. Heat index values as high as 105. Southwest wind 5 to 10 mph.

    High: 94 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Mostly clear, with a low around 75. Southwest wind around 5 mph.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 94. Calm wind becoming west around 5 mph in the morning.

    High: 94 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 74. Calm wind becoming west around 5 mph.

    Low: 74 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms after 1pm.  Partly sunny, with a high near 91. Calm wind becoming west around 5 mph in the afternoon.

    High: 91 °F

    Partly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms.  Partly cloudy, with a low around 73. Calm wind.

    Low: 73 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
A 20 percent chance of showers after 11pm. Mostly cloudy, with a low around 74. Calm wind.
Sunday
A chance of showers and thunderstorms before 3pm, then a slight chance of showers. Mostly sunny, with a high near 90. Light south wind becoming southwest 5 to 10 mph in the morning. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Partly cloudy, with a low around 76. South wind around 5 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 94. Heat index values as high as 105. Southwest wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 75. Southwest wind around 5 mph.
Tuesday
Mostly sunny, with a high near 94. Calm wind becoming west around 5 mph in the morning.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74. Calm wind becoming west around 5 mph.
Wednesday
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 91. Calm wind becoming west around 5 mph in the afternoon.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 73. Calm wind.
Thursday
A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 91. Calm wind becoming west around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 72. Calm wind.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 93. Calm wind becoming southwest around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 73. Calm wind.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 93. Calm wind becoming southwest around 5 mph in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNE Mount Hermon LA
 31.02°N 90.26°W
3:20 pm CDT Jun 20, 2026
10pm CDT Jun 20, 2026-6pm CDT Jun 27, 2026
 
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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