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

Augusta Daniel Field (KDNL)

Lat: 33.47°NLon: 82.04°WElev: 411ft.

Fair

76°F

24°C

Humidity 91%
Wind Speed E 5 mph
Barometer 30.05 in (1017.0 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index76°F (24°C)
Last update 13 Jul 1:53 am EDT
Extended Forecast for

Johnston SC

  • Overnight

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

    Low: 73 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 96. Heat index values as high as 102. Calm wind becoming north around 5 mph in the afternoon.

    High: 96 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 73. Calm wind.

    Low: 73 °F

    Mostly Clear

  • Monday

    Monday: A chance of showers and thunderstorms after 2pm. Increasing clouds and hot, with a high near 97. Heat index values as high as 105. Light northeast wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 97 °F

    Sunny then
    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 73. Light southeast wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 73 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A slight chance of showers, then showers and thunderstorms likely after 11am. Mostly cloudy, with a high near 92. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 92 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 73. Chance of precipitation is 60%.

    Low: 73 °F

    T-storms
    Likely then
    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers between 8am and 2pm, then showers and thunderstorms likely after 2pm. Mostly cloudy, with a high near 91. Chance of precipitation is 70%.

    High: 91 °F

    Chance
    Showers then
    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely before 8pm. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.

    Low: 72 °F

    T-storms
    Likely then
    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 73. Calm wind.
Sunday
Sunny, with a high near 96. Heat index values as high as 102. Calm wind becoming north around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 73. Calm wind.
Monday
A chance of showers and thunderstorms after 2pm. Increasing clouds and hot, with a high near 97. Heat index values as high as 105. Light northeast wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 73. Light southeast wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A slight chance of showers, then showers and thunderstorms likely after 11am. Mostly cloudy, with a high near 92. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 73. Chance of precipitation is 60%.
Wednesday
A chance of showers between 8am and 2pm, then showers and thunderstorms likely after 2pm. Mostly cloudy, with a high near 91. Chance of precipitation is 70%.
Wednesday Night
Showers and thunderstorms likely before 8pm. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.
Thursday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 91. Chance of precipitation is 50%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 93. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Chance of precipitation is 30%.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 94. Chance of precipitation is 50%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Johnston SC
 33.84°N 81.81°W (Elev. 617 ft)
Last Update:
12:42 am EDT Jul 13, 2025
Forecast Valid:
2am EDT Jul 13, 2025-6pm EDT Jul 19, 2025
 
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