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

Risks of Severe Thunderstorms and Excessive Rainfall in the Central U.S.; Fire Weather Concerns in Alaska and Southwest

An expansive storm system will bring widespread storms with a threat for flash flooding and severe weather to much of the central to eastern U.S. into early this week. Critical fire weather conditions are expected across interior Alaska this weekend. Elevated fire conditions also expected in the Southwest U.S.. Conditions will remain uncomfortably hot across the southern Plains and the Southeast. Read More >

Current conditions at

Hilton Head Island, Hilton Head Airport (KHXD)

Lat: 32.22°NLon: 80.7°WElev: 20ft.

Partly Cloudy

75°F

24°C

Humidity 89%
Wind Speed Vrbl 6 mph
Barometer 29.97 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 21 Jun 1:55 am EDT
Extended Forecast for

5 Miles SSW Saint Helena Island SC

  • Overnight

    Overnight: Mostly cloudy, with a low around 73. Calm wind.

    Low: 73 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 89. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 89 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, then gradually becoming clear, with a low around 76. Southwest wind around 6 mph.

    Low: 76 °F

    Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 92. Heat index values as high as 106. Southwest wind 7 to 11 mph, with gusts as high as 20 mph.

    High: 92 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 77. Southwest wind around 9 mph.

    Low: 77 °F

    Mostly Clear

  • Tuesday

    Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 95. Chance of precipitation is 40%.

    High: 95 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 76.

    Low: 76 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93.

    High: 93 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly between 8pm and 2am. Partly cloudy, with a low around 77.

    Low: 77 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Mostly cloudy, with a low around 73. Calm wind.
Sunday
A 20 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 89. Calm wind becoming south 5 to 8 mph in the afternoon.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, then gradually becoming clear, with a low around 76. Southwest wind around 6 mph.
Monday
Mostly sunny, with a high near 92. Heat index values as high as 106. Southwest wind 7 to 11 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 77. Southwest wind around 9 mph.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 95. Chance of precipitation is 40%.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 76.
Wednesday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly between 8pm and 2am. Partly cloudy, with a low around 77.
Thursday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 78.
Saturday
Sunny, with a high near 95.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Saint Helena Island SC
 32.33°N 80.61°W (Elev. 10 ft)
Last Update:
2:15 am EDT Jun 21, 2026
Forecast Valid:
2am EDT Jun 21, 2026-6pm EDT Jun 27, 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