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Tropical Storm Arthur and Heavy Rainfall in the South; Severe Weather in the Midwest

An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana tonight. Intense tornadoes, swaths of damaging gusts, and hail in excess of 2 inches in diameter possible. Tropical Storm Arthur will continue to produce strong winds across coastal Upper Texas and Louisiana tonight, as well as potentially life-threatening flooding across southern Louisiana into Mississippi. Read More >

Current conditions at

Hilton Head Island, Hilton Head Airport (KHXD)

Lat: 32.22°NLon: 80.7°WElev: 20ft.

Fair

81°F

27°C

Humidity 94%
Wind Speed SW 6 mph
Barometer 29.97 in
Dewpoint 79°F (26°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 18 Jun 4:55 am EDT
Extended Forecast for

Hilton Head Island SC

  • Today

    Today: A chance of showers before 4pm, then showers and thunderstorms likely between 4pm and 5pm, then a chance of showers after 5pm. Mostly sunny, with a high near 93. Heat index values as high as 108. Southwest wind 8 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 93 °F

    Sunny then
    T-storms
    Likely

  • Tonight

    Tonight: A chance of showers before 3am, then a chance of showers after 5am. Mostly cloudy, with a low around 78. Southwest wind 8 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.

    Low: 78 °F

    Chance
    Showers

  • Juneteenth

    Juneteenth: Showers and thunderstorms before 5pm, then a chance of showers. High near 88. Heat index values as high as 102. Southwest wind 15 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    T-storms then
    Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 75. West wind 6 to 8 mph.

    Low: 75 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 92. Northwest wind around 6 mph becoming southeast in the afternoon.

    High: 92 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 76.

    Low: 76 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 92.

    High: 92 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 75.

    Low: 75 °F

    Slight Chance
    T-storms

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 8am. Mostly sunny, with a high near 94.

    High: 94 °F

    Slight Chance
    T-storms

Detailed Forecast

Today
A chance of showers before 4pm, then showers and thunderstorms likely between 4pm and 5pm, then a chance of showers after 5pm. Mostly sunny, with a high near 93. Heat index values as high as 108. Southwest wind 8 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers before 3am, then a chance of showers after 5am. Mostly cloudy, with a low around 78. Southwest wind 8 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.
Juneteenth
Showers and thunderstorms before 5pm, then a chance of showers. High near 88. Heat index values as high as 102. Southwest wind 15 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 75. West wind 6 to 8 mph.
Saturday
A 20 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 92. Northwest wind around 6 mph becoming southeast in the afternoon.
Saturday Night
Mostly cloudy, with a low around 76.
Sunday
A 20 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 92.
Sunday Night
A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 75.
Monday
A 20 percent chance of showers and thunderstorms after 8am. Mostly sunny, with a high near 94.
Monday Night
Partly cloudy, with a low around 77.
Tuesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hilton Head Island SC
 32.2°N 80.73°W (Elev. 16 ft)
Last Update:
2:40 am EDT Jun 18, 2026
Forecast Valid:
5am EDT Jun 18, 2026-6pm EDT Jun 24, 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