National Weather Service Forecast for: Fayetteville AR
Issued by: National Weather Service Tulsa, OK
Updated: 2:50 am CDT Aug 20, 2026
 
Overnight

Overnight: A chance of showers and thunderstorms before 4am, then a slight chance of showers. Mostly cloudy, with a low around 74. Calm wind. Chance of precipitation is 30%.
Chance
Showers

 Thursday

Thursday: Mostly cloudy through mid morning, then gradual clearing, with a high near 98. Heat index values as high as 101. Calm wind becoming north around 5 mph in the afternoon.
Becoming
Sunny

 Thursday
Night
Thursday Night: Mostly clear, with a low around 70. North wind around 5 mph becoming calm in the evening.
Mostly Clear

 Friday

Friday: A 20 percent chance of showers before 10am. Sunny, with a high near 99. Calm wind becoming northeast around 5 mph in the afternoon.
Slight Chance
Showers then
Sunny
 Friday
Night
Friday Night: A 20 percent chance of showers after 1am. Mostly clear, with a low around 74. East wind around 5 mph becoming calm.
Mostly Clear
then Slight
Chance
Showers
 Saturday

Saturday: A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm. Mostly sunny, with a high near 99. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 20%.
Slight Chance
T-storms then
Slight Chance
Showers
 Saturday
Night
Saturday Night: Mostly clear, with a low around 72. East wind around 5 mph.
Mostly Clear

 Sunday

Sunday: Mostly sunny, with a high near 95. East wind around 5 mph.
Mostly Sunny

 Sunday
Night
Sunday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73. Southeast wind 5 to 10 mph.
Slight Chance
T-storms
Lo 74 °F Hi 98 °F Lo 70 °F Hi 99 °F Lo 74 °F Hi 99 °F Lo 72 °F Hi 95 °F Lo 73 °F

Hazardous Weather Outlook
 

Overnight
 
 A chance of showers and thunderstorms before 4am, then a slight chance of showers. Mostly cloudy, with a low around 74. Calm wind. Chance of precipitation is 30%.
Thursday
 
 Mostly cloudy through mid morning, then gradual clearing, with a high near 98. Heat index values as high as 101. Calm wind becoming north around 5 mph in the afternoon.
Thursday Night
 
 Mostly clear, with a low around 70. North wind around 5 mph becoming calm in the evening.
Friday
 
 A 20 percent chance of showers before 10am. Sunny, with a high near 99. Calm wind becoming northeast around 5 mph in the afternoon.
Friday Night
 
 A 20 percent chance of showers after 1am. Mostly clear, with a low around 74. East wind around 5 mph becoming calm.
Saturday
 
 A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm. Mostly sunny, with a high near 99. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 20%.
Saturday Night
 
 Mostly clear, with a low around 72. East wind around 5 mph.
Sunday
 
 Mostly sunny, with a high near 95. East wind around 5 mph.
Sunday Night
 
 A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73. Southeast wind 5 to 10 mph.
Monday
 
 A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 94. South wind 10 to 15 mph, with gusts as high as 20 mph.
Monday Night
 
 Mostly clear, with a low around 74. South wind around 10 mph, with gusts as high as 20 mph.
Tuesday
 
 Sunny, with a high near 97. South wind around 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
 
 Partly cloudy, with a low around 74. North wind around 5 mph becoming southeast after midnight.
Wednesday
 
 Mostly sunny, with a high near 96. Southeast wind 5 to 10 mph becoming west in the afternoon.

 

Forecast from NOAA-NWS for Fayetteville AR.