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

Excessive Rainfall and Tropical Storm in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce considerable, potentially life-threatening, flooding across the lower Mississippi River Valley and central Great Lakes region through tonight. Tropical Storm Arthur will move northeastward along the Texas coast today and then move inland over southwestern Louisiana by tonight. An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana. Read More >

Current conditions at

Longview - East Texas Regional Airport (KGGG)

Lat: 32.39°NLon: 94.71°WElev: 364ft.

Mostly Cloudy

86°F

30°C

Humidity 70%
Wind Speed S 12 G 22 mph
Barometer 29.75 in (1006.8 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index95°F (35°C)
Last update 17 Jun 10:53 am CDT
Extended Forecast for

Tatum TX

  • Today

    Today: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. South wind 10 to 15 mph.

    High: 89 °F

    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 7pm, then a slight chance of showers. Mostly cloudy, with a low around 75. Southeast wind 5 to 10 mph becoming light after midnight. Chance of precipitation is 30%.

    Low: 75 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 94. Heat index values as high as 108. South wind around 5 mph. Chance of precipitation is 20%.

    High: 94 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A 20 percent chance of showers. Partly cloudy, with a low around 78. South wind around 5 mph.

    Low: 78 °F

    Slight Chance
    Showers

  • Juneteenth

    Juneteenth: A chance of showers, with thunderstorms also possible after 10am. Partly sunny, with a high near 92. Light south wind becoming southeast 5 to 10 mph in the afternoon. Chance of precipitation is 40%.

    High: 92 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 76. Chance of precipitation is 60%.

    Low: 76 °F

    Chance
    T-storms then
    Showers
    Likely

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 91. Chance of precipitation is 60%.

    High: 91 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 76.

    Low: 76 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: Mostly sunny, with a high near 93.

    High: 93 °F

    Mostly Sunny

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. South wind 10 to 15 mph.
Tonight
A chance of showers and thunderstorms before 7pm, then a slight chance of showers. Mostly cloudy, with a low around 75. Southeast wind 5 to 10 mph becoming light after midnight. Chance of precipitation is 30%.
Thursday
A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 94. Heat index values as high as 108. South wind around 5 mph. Chance of precipitation is 20%.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 78. South wind around 5 mph.
Juneteenth
A chance of showers, with thunderstorms also possible after 10am. Partly sunny, with a high near 92. Light south wind becoming southeast 5 to 10 mph in the afternoon. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 76. Chance of precipitation is 60%.
Saturday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 91. Chance of precipitation is 60%.
Saturday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 76.
Sunday
Mostly sunny, with a high near 93.
Sunday Night
Mostly clear, with a low around 77.
Monday
Mostly sunny, with a high near 94.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77.
Tuesday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 93.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Tatum TX
 32.31°N 94.52°W (Elev. 318 ft)
Last Update:
11:16 am CDT Jun 17, 2026
Forecast Valid:
11am CDT Jun 17, 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