Moke Impacts Hawaii; Severe Thunderstorms and Heavy Rainfall from the Great Basin to the Plains

Heavy rain from Tropical Storm Moke will begin to impact the Big Island today, risking life-threatening flooding and mudslides in windward and southeast areas. Severe thunderstorms are expected across the northern Rockies/Plains and northern Great Basin. Repeated storms and heavy rainfall may cause flash flooding from the Plains into the Lower MS Valley. Dangerous heat persists across the South. Read More >

Current conditions at

Marshall (KASL)

Lat: 32.52°NLon: 94.31°WElev: 357ft.

Fair

104°F

40°C

Humidity 25%
Wind Speed N 3 mph
Barometer 29.87 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index106°F (41°C)
Last update 23 Aug 6:15 pm CDT
Extended Forecast for

3 Miles NNW Karnack TX

Heat Advisory August 23, 06:34pm until August 24, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 23, 06:34pm until August 24, 08:00pm

    NOW until 8:00pm Mon

    Heat Advisory

  • Tonight

    Low: 77 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny and hot, with a high near 104. Heat index values as high as 109. Southwest wind 5 to 10 mph.

    High: 104 °F

    Hot

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 78. Southeast wind 5 to 10 mph becoming south after midnight.

    Low: 78 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: Sunny and hot, with a high near 102. Heat index values as high as 106. Southwest wind around 5 mph.

    High: 102 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 78. Calm wind becoming southwest around 5 mph after midnight.

    Low: 78 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny and hot, with a high near 102.

    High: 102 °F

    Hot

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers after 1am.  Partly cloudy, with a low around 75.

    Low: 75 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers, with thunderstorms also possible after 1pm.  Mostly sunny and hot, with a high near 100. Chance of precipitation is 20%.

    High: 100 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 77. North wind around 5 mph becoming calm.
Monday
Mostly sunny and hot, with a high near 104. Heat index values as high as 109. Southwest wind 5 to 10 mph.
Monday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 78. Southeast wind 5 to 10 mph becoming south after midnight.
Tuesday
Sunny and hot, with a high near 102. Heat index values as high as 106. Southwest wind around 5 mph.
Tuesday Night
Mostly clear, with a low around 78. Calm wind becoming southwest around 5 mph after midnight.
Wednesday
Mostly sunny and hot, with a high near 102.
Wednesday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 75.
Thursday
A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny and hot, with a high near 100. Chance of precipitation is 20%.
Thursday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 74.
Friday
Sunny and hot, with a high near 99.
Friday Night
Mostly clear, with a low around 74.
Saturday
Sunny and hot, with a high near 98.
Saturday Night
Mostly clear, with a low around 74.
Sunday
Sunny and hot, with a high near 99.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Karnack TX
 32.65°N 94.17°W (Elev. 299 ft)
6:31 pm CDT Aug 23, 2026
6pm CDT Aug 23, 2026-6pm CDT Aug 30, 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