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

Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

Hazardous Weather Conditions

Current conditions at

Graham, Graham Municipal Airport (KRPH)

Lat: 33.11°NLon: 98.56°WElev: 1122ft.

Fair

92°F

33°C

Humidity 36%
Wind Speed SW 9 mph
Barometer 30.03 in
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 22 Aug 9:55 am CDT
Extended Forecast for

9 Miles WNW Newcastle TX

Extreme Heat Warning August 22, 10:00am until August 22, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 22, 10:00am until August 22, 08:00pm

    NOW until 8:00pm Sat

    Extreme Heat Warning

  • Today

    High: 108 °F

    Hot

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 79. South wind 5 to 10 mph.

    Low: 79 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: Mostly sunny and hot, with a high near 108. South southeast wind 5 to 10 mph becoming west southwest in the morning.

    High: 108 °F

    Hot

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 81. South wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 81 °F

    Partly Cloudy

  • Monday

    Monday: Sunny and hot, with a high near 108. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 108 °F

    Hot

  • Monday Night

    Monday Night: Clear, with a low around 81. South wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 81 °F

    Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 108. West southwest wind 5 to 10 mph.

    High: 108 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 79. South wind around 5 mph.

    Low: 79 °F

    Mostly Clear

Detailed Forecast

Today
Sunny and hot, with a high near 108. South wind 5 to 10 mph.
Tonight
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 79. South wind 5 to 10 mph.
Sunday
Mostly sunny and hot, with a high near 108. South southeast wind 5 to 10 mph becoming west southwest in the morning.
Sunday Night
Partly cloudy, with a low around 81. South wind 5 to 10 mph, with gusts as high as 20 mph.
Monday
Sunny and hot, with a high near 108. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Monday Night
Clear, with a low around 81. South wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
Sunny and hot, with a high near 108. West southwest wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 79. South wind around 5 mph.
Wednesday
Sunny and hot, with a high near 106. West wind around 5 mph.
Wednesday Night
Mostly clear, with a low around 76.
Thursday
Sunny and hot, with a high near 104.
Thursday Night
Mostly clear, with a low around 76.
Friday
Sunny and hot, with a high near 104.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
9 Miles WNW Newcastle TX
 33.24°N 98.89°W (Elev. 1096 ft)
Last Update:
9:27 am CDT Aug 22, 2026
Forecast Valid:
10am CDT Aug 22, 2026-6pm CDT Aug 28, 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