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

Heavy Rainfall Continues in Hawaii; Severe Thunderstorms and Heavy Rainfall in the Plains and Southern Appalachians

Areas of gusty winds, heavy rain leading to flash flooding, and high surf continue across portions of Hawaii as Tropical Storm Lala continues to move away from the islands. Severe thunderstorms and heavy rainfall will shift into the southern Appalachians today. Strong to severe thunderstorms may produce large hail, scattered wind gusts, and heavy rain today across the northern and central Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Jacksonville, Cherokee County Airport (KJSO)

Lat: 31.87°NLon: 95.22°WElev: 676ft.

Fair

74°F

23°C

Humidity 94%
Wind Speed SW 6 mph
Barometer 30.07 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Last update 17 Aug 6:55 am CDT
Extended Forecast for

Alto TX

Heat Advisory August 17, 06:59am until August 18, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 17, 06:59am until August 18, 08:00pm

    NOW until 8:00pm Tue

    Heat Advisory

  • Today

    High: 100 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 76. Calm wind becoming south around 5 mph after midnight.

    Low: 76 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 101. Heat index values as high as 105. Southwest wind around 5 mph.

    High: 101 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 77. South wind around 5 mph.

    Low: 77 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 99. Southwest wind around 5 mph.

    High: 99 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 76.

    Low: 76 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 100.

    High: 100 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 76.

    Low: 76 °F

    Mostly Clear

Detailed Forecast

Today
Sunny and hot, with a high near 100. Heat index values as high as 104. Southwest wind around 5 mph becoming calm in the morning.
Tonight
Mostly clear, with a low around 76. Calm wind becoming south around 5 mph after midnight.
Tuesday
Sunny and hot, with a high near 101. Heat index values as high as 105. Southwest wind around 5 mph.
Tuesday Night
Mostly clear, with a low around 77. South wind around 5 mph.
Wednesday
Sunny and hot, with a high near 99. Southwest wind around 5 mph.
Wednesday Night
Mostly clear, with a low around 76.
Thursday
Sunny and hot, with a high near 100.
Thursday Night
Mostly clear, with a low around 76.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 100.
Friday Night
Partly cloudy, with a low around 75.
Saturday
Sunny and hot, with a high near 99.
Saturday Night
Mostly clear, with a low around 74.
Sunday
A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 99.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Alto TX
 31.66°N 95.08°W (Elev. 430 ft)
Last Update:
6:30 am CDT Aug 17, 2026
Forecast Valid:
6am CDT Aug 17, 2026-6pm CDT Aug 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