National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Lala Impacting Hawaii; Flash Flooding Risks; Excessive Heat

Lala will continue to impact Hawaii through the weekend. Heavy rainfall, strong winds, dangerous surf and localized flooding are expected. Thunderstorms, heavy rainfall and flash flooding concerns from the mid-Mississippi Valley, Ohio Valley into the central Appalachians and the mid-Atlantic through today. Record heat continues for areas of the Mississippi Valley into the Southeast. Read More >

Hazardous Weather Conditions

Current conditions at

Rock Hill, Rock Hill - York County Airport (KUZA)

Lat: 34.98°NLon: 81.06°WElev: 669ft.

Partly Cloudy

90°F

32°C

Humidity 66%
Wind Speed Calm
Barometer 30.12 in (1018.3 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index103°F (39°C)
Last update 16 Aug 12:54 pm EDT
Extended Forecast for

Fort Mill SC

Heat Advisory until August 16, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory until August 16, 08:00pm

    NOW until 8:00pm Sun

    Heat Advisory

  • This Afternoon

    High: 94 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 75. Light south southwest wind.

    Low: 75 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 97. Heat index values as high as 107. Calm wind becoming west 5 to 7 mph in the morning.

    High: 97 °F

    Hot

  • Monday Night

    Monday Night: A slight chance of showers between 11pm and 1am. Partly cloudy, with a low around 74. Calm wind. Chance of precipitation is 20%.

    Low: 74 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: Sunny, with a high near 94. North wind 3 to 6 mph.

    High: 94 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 73.

    Low: 73 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 94. Heat index values as high as 106. West southwest wind 3 to 5 mph.
Tonight
Mostly clear, with a low around 75. Light south southwest wind.
Monday
Sunny and hot, with a high near 97. Heat index values as high as 107. Calm wind becoming west 5 to 7 mph in the morning.
Monday Night
A slight chance of showers between 11pm and 1am. Partly cloudy, with a low around 74. Calm wind. Chance of precipitation is 20%.
Tuesday
Sunny, with a high near 94. North wind 3 to 6 mph.
Tuesday Night
Mostly clear, with a low around 73.
Wednesday
Sunny, with a high near 94.
Wednesday Night
Mostly clear, with a low around 74.
Thursday
Sunny and hot, with a high near 95.
Thursday Night
A chance of showers between 8pm and 2am. Partly cloudy, with a low around 72. Chance of precipitation is 40%.
Friday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.
Saturday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fort Mill SC
 35.01°N 80.95°W (Elev. 640 ft)
Last Update:
10:54 am EDT Aug 16, 2026
Forecast Valid:
1pm EDT Aug 16, 2026-6pm EDT Aug 22, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation