National Weather Service Forecast for: Guymon OK
Issued by: National Weather Service Amarillo, TX
Updated: 2:45 pm CDT Jul 28, 2026
 
Tonight

Tonight: A chance of showers and thunderstorms before 4am, then a slight chance of showers. Mostly cloudy, with a low around 68. East wind 5 to 10 mph becoming north after midnight. Chance of precipitation is 30%.
Chance
T-storms
 Wednesday

Wednesday: Mostly sunny and hot, with a high near 102. Northwest wind 5 to 10 mph becoming east southeast in the afternoon.
Hot
 Wednesday
Night
Wednesday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 69. South southeast wind around 10 mph.
Slight Chance
T-storms
 Thursday

Thursday: Sunny and hot, with a high near 105. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Hot
 Thursday
Night
Thursday Night: A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 68. South southwest wind 5 to 10 mph becoming northwest after midnight.
Chance
T-storms
 Friday

Friday: Sunny and hot, with a high near 101. North northwest wind 5 to 15 mph becoming northeast in the afternoon. Winds could gust as high as 20 mph.
Hot
 Friday
Night
Friday Night: Mostly clear, with a low around 66. East northeast wind 5 to 10 mph.
Mostly Clear
 Saturday

Saturday: Sunny and hot, with a high near 97. East wind 5 to 10 mph.
Hot
 Saturday
Night
Saturday Night: Clear, with a low around 64. East wind 5 to 10 mph.
Clear
Lo 68 °F Hi 102 °F Lo 69 °F Hi 105 °F Lo 68 °F Hi 101 °F Lo 66 °F Hi 97 °F Lo 64 °F

Heat Advisory
Hazardous Weather Outlook
 

Tonight
 
 A chance of showers and thunderstorms before 4am, then a slight chance of showers. Mostly cloudy, with a low around 68. East wind 5 to 10 mph becoming north after midnight. Chance of precipitation is 30%.
Wednesday
 
 Mostly sunny and hot, with a high near 102. Northwest wind 5 to 10 mph becoming east southeast in the afternoon.
Wednesday Night
 
 A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 69. South southeast wind around 10 mph.
Thursday
 
 Sunny and hot, with a high near 105. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday Night
 
 A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 68. South southwest wind 5 to 10 mph becoming northwest after midnight.
Friday
 
 Sunny and hot, with a high near 101. North northwest wind 5 to 15 mph becoming northeast in the afternoon. Winds could gust as high as 20 mph.
Friday Night
 
 Mostly clear, with a low around 66. East northeast wind 5 to 10 mph.
Saturday
 
 Sunny and hot, with a high near 97. East wind 5 to 10 mph.
Saturday Night
 
 Clear, with a low around 64. East wind 5 to 10 mph.
Sunday
 
 Sunny and hot, with a high near 100.
Sunday Night
 
 Clear, with a low around 67.
Monday
 
 Sunny and hot, with a high near 103.
Monday Night
 
 Mostly clear, with a low around 69.
Tuesday
 
 Sunny and hot, with a high near 101.

 

Forecast from NOAA-NWS for Guymon OK.