Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

Altus, Altus/Quartz Mountain Regional Airport (KAXS)

Lat: 34.7° N Lon: 99.34° W Elev: 1434 ft.

Fair

84°F

29°C

Humidity 55%
Wind Speed E 12 mph
Barometer 30.02 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 18 Aug 2:35 am CDT
Detailed forecast for

Harmon County

Rest Of Tonight
Clear. Lows in the lower 70s. East winds 5 to 10 mph.
Tuesday
Sunny, hot with highs around 108. Southwest winds 5 to 10 mph.
Tuesday Night
Mostly clear. Lows in the upper 70s. South winds 10 to 15 mph. Heat index values up to 106 early in the evening.
Wednesday
Sunny, hot with highs around 108. Southwest winds around 10 mph with gusts up to 20 mph.
Wednesday Night
Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 70s. South winds 10 to 15 mph, becoming east 5 to 10 mph after midnight.
Thursday
Sunny, hot with highs 100 to 105.
Thursday Night
Mostly clear. Lows in the lower 70s.
Friday
Sunny, hot with highs 100 to 105.
Friday Night
Mostly clear. Lows in the mid 70s.
Saturday
Sunny, hot with highs 105 to 110.
Saturday Night
Mostly clear. Lows in the mid 70s. Heat index values up to 105 early in the evening.
Sunday
Sunny, hot with highs around 110.
Sunday Night
Mostly clear. Lows in the upper 70s. Heat index values up to 105 early in the evening.
Monday
Sunny, hot with highs around 110.



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128 AM CDT Tue Aug 18 2026
 
 

Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database