National Weather Service Forecast for: Rock Hill SC
Issued by: National Weather Service Greenville-Spartanburg, SC
Updated: 9:30 pm EDT Jun 18, 2026
 
Tonight

Tonight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after midnight. Some of the storms could produce heavy rainfall. Patchy fog after 4am. Low around 69. South southwest wind around 8 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Heavy Rain
and Patchy
Fog

 Juneteenth

Juneteenth: Showers and thunderstorms, mainly before 2pm. Some of the storms could produce heavy rainfall. Patchy fog before 7am. High near 87. North wind around 8 mph becoming west northwest in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Heavy Rain
and Patchy
Fog then
Chance
T-storms
 Friday
Night
Friday Night: A 30 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 63. Northwest wind 3 to 5 mph.
Chance
T-storms then
Partly Cloudy

 Saturday

Saturday: Mostly sunny, with a high near 86. Light and variable wind.
Mostly Sunny


 Saturday
Night
Saturday Night: Partly cloudy, with a low around 65. Calm wind.
Partly Cloudy


 Sunday

Sunday: Sunny, with a high near 90.
Sunny


 Sunday
Night
Sunday Night: Partly cloudy, with a low around 70.
Partly Cloudy


 Monday

Monday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 89. Chance of precipitation is 50%.
Chance
Showers then
Chance
T-storms
 Monday
Night
Monday Night: A 40 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 71.
Chance
T-storms
Lo 69 °F Hi 87 °F Lo 63 °F Hi 86 °F Lo 65 °F Hi 90 °F Lo 70 °F Hi 89 °F Lo 71 °F

 

Tonight
 
 A chance of showers and thunderstorms, then showers and possibly a thunderstorm after midnight. Some of the storms could produce heavy rainfall. Patchy fog after 4am. Low around 69. South southwest wind around 8 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Juneteenth
 
 Showers and thunderstorms, mainly before 2pm. Some of the storms could produce heavy rainfall. Patchy fog before 7am. High near 87. North wind around 8 mph becoming west northwest in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
 
 A 30 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 63. Northwest wind 3 to 5 mph.
Saturday
 
 Mostly sunny, with a high near 86. Light and variable wind.
Saturday Night
 
 Partly cloudy, with a low around 65. Calm wind.
Sunday
 
 Sunny, with a high near 90.
Sunday Night
 
 Partly cloudy, with a low around 70.
Monday
 
 A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 89. Chance of precipitation is 50%.
Monday Night
 
 A 40 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 71.
Tuesday
 
 A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89.
Tuesday Night
 
 A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Wednesday
 
 Mostly sunny, with a high near 87.
Wednesday Night
 
 Partly cloudy, with a low around 67.
Thursday
 
 Mostly sunny, with a high near 88.

 

Forecast from NOAA-NWS for Rock Hill SC.