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

Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Alva, Alva Regional Airport (KAVK)

Lat: 36.77°NLon: 98.67°WElev: 1473ft.

Fair

81°F

27°C

Humidity 66%
Wind Speed N 7 mph
Barometer 29.94 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 19 Aug 11:15 pm CDT
Extended Forecast for

Byron OK

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70. North northeast wind 5 to 7 mph.

    Low: 70 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: Sunny and hot, with a high near 100. East wind 5 to 8 mph.

    High: 100 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 72. East wind 5 to 8 mph.

    Low: 72 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 104. Southeast wind 3 to 7 mph.

    High: 104 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 73. East southeast wind 3 to 7 mph.

    Low: 73 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny and hot, with a high near 105.

    High: 105 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny and hot, with a high near 105.

    High: 105 °F

    Hot

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 77.

    Low: 77 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 10 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70. North northeast wind 5 to 7 mph.
Thursday
Sunny and hot, with a high near 100. East wind 5 to 8 mph.
Thursday Night
Mostly clear, with a low around 72. East wind 5 to 8 mph.
Friday
Sunny and hot, with a high near 104. Southeast wind 3 to 7 mph.
Friday Night
Mostly clear, with a low around 73. East southeast wind 3 to 7 mph.
Saturday
Mostly sunny and hot, with a high near 105.
Saturday Night
Mostly clear, with a low around 74.
Sunday
Mostly sunny and hot, with a high near 105.
Sunday Night
Partly cloudy, with a low around 77.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 106.
Monday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 75.
Tuesday
Mostly sunny and hot, with a high near 104.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 74.
Wednesday
Mostly sunny and hot, with a high near 103.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Byron OK
 36.9°N 98.31°W
Last Update:
8:42 pm CDT Aug 19, 2026
Forecast Valid:
11pm CDT Aug 19, 2026-6pm CDT Aug 26, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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