National Weather Service Forecast for: Chapel Hill NC
Issued by: National Weather Service Raleigh, NC
Updated: 2:27 am EDT Aug 20, 2026
 
Today

Today: Mostly sunny, with a high near 96. Heat index values as high as 103. Calm wind becoming southwest 5 to 9 mph in the morning.
Mostly Sunny

 Tonight

Tonight: Showers and thunderstorms likely before 1am, then showers likely and possibly a thunderstorm between 1am and 2am, then scattered showers after 2am. Mostly cloudy, with a low around 72. Light and variable wind. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Showers
Likely

 Friday

Friday: Isolated showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 89. Calm wind becoming northeast around 5 mph in the afternoon. Chance of precipitation is 30%. New rainfall amounts between a quarter and half of an inch possible.
Isolated
Showers then
Chance
T-storms
 Friday
Night
Friday Night: Showers and thunderstorms likely before 8pm, then showers and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Low around 69. Light and variable wind. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
T-storms then
Showers

 Saturday

Saturday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 86. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Chance
Showers then
Chance
T-storms
 Saturday
Night
Saturday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 69. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Chance
T-storms then
Partly Cloudy
 Sunday

Sunday: Sunny, with a high near 88.
Sunny

 Sunday
Night
Sunday Night: Mostly clear, with a low around 67.
Mostly Clear

 Monday

Monday: Sunny, with a high near 87.
Sunny
Hi 96 °F Lo 72 °F Hi 89 °F Lo 69 °F Hi 86 °F Lo 69 °F Hi 88 °F Lo 67 °F Hi 87 °F

Hazardous Weather Outlook
Heat Advisory
 

Today
 
 Mostly sunny, with a high near 96. Heat index values as high as 103. Calm wind becoming southwest 5 to 9 mph in the morning.
Tonight
 
 Showers and thunderstorms likely before 1am, then showers likely and possibly a thunderstorm between 1am and 2am, then scattered showers after 2am. Mostly cloudy, with a low around 72. Light and variable wind. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
 
 Isolated showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 89. Calm wind becoming northeast around 5 mph in the afternoon. Chance of precipitation is 30%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
 
 Showers and thunderstorms likely before 8pm, then showers and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Low around 69. Light and variable wind. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
 
 A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 86. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
 
 A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 69. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
 
 Sunny, with a high near 88.
Sunday Night
 
 Mostly clear, with a low around 67.
Monday
 
 Sunny, with a high near 87.
Monday Night
 
 Mostly clear, with a low around 66.
Tuesday
 
 Sunny, with a high near 87.
Tuesday Night
 
 Partly cloudy, with a low around 67.
Wednesday
 
 A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 30%.

 

Forecast from NOAA-NWS for Chapel Hill NC.