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

Excessive Rainfall Possible This Weekend; October Heat Wave in California

A slow moving front will be the focus area for heavy to excessive rainfall and a threat for flash/urban flooding across the northern Gulf Coast and Southeast U.S. through this weekend. Abnormally hot, potentially record-breaking, temperatures will impact southern California and stretch north toward the Bay Area and Central Valley into next week. Read More >

Current conditions at

Augusta Daniel Field (KDNL)

Lat: 33.47°NLon: 82.04°WElev: 411ft.

Mostly Cloudy

73°F

23°C

Humidity 96%
Wind Speed Calm
Barometer 30.07 in (1017.7 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 4 Oct 4:53 am EDT
Extended Forecast for

Johnston SC

  • Overnight

    Overnight: Showers likely and possibly a thunderstorm. Cloudy, with a low around 67. Light northeast wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 67 °F

    Showers
    Likely

  • Sunday

    Sunday: A chance of showers and thunderstorms. Patchy fog before 1pm, then patchy fog after 2pm. Otherwise, cloudy, with a high near 74. Northeast wind 3 to 6 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.

    High: 74 °F

    Chance
    Showers and
    Patchy Fog

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm before 2am, then showers likely. Patchy fog. Low around 64. Calm wind. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 64 °F

    Showers and
    Patchy Fog

  • Monday

    Monday: A chance of showers, mainly before 8am. Patchy fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 77. Northeast wind 5 to 8 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 77 °F

    Chance
    Showers and
    Patchy Fog
    then Mostly
    Cloudy

  • Monday Night

    Monday Night: Mostly clear, with a low around 57. Northeast wind 5 to 7 mph.

    Low: 57 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

Detailed Forecast

Overnight
Showers likely and possibly a thunderstorm. Cloudy, with a low around 67. Light northeast wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers and thunderstorms. Patchy fog before 1pm, then patchy fog after 2pm. Otherwise, cloudy, with a high near 74. Northeast wind 3 to 6 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Showers and possibly a thunderstorm before 2am, then showers likely. Patchy fog. Low around 64. Calm wind. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Monday
A chance of showers, mainly before 8am. Patchy fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 77. Northeast wind 5 to 8 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Mostly clear, with a low around 57. Northeast wind 5 to 7 mph.
Tuesday
Sunny, with a high near 74.
Tuesday Night
Partly cloudy, with a low around 51.
Wednesday
Sunny, with a high near 77.
Wednesday Night
Mostly clear, with a low around 51.
Thursday
Sunny, with a high near 80.
Thursday Night
Partly cloudy, with a low around 54.
Friday
Mostly sunny, with a high near 78.
Friday Night
Mostly cloudy, with a low around 56.
Saturday
A chance of showers. Mostly cloudy, with a high near 74. Chance of precipitation is 40%.
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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:
2:21 am EDT Oct 4, 2026
Forecast Valid:
5am EDT Oct 4, 2026-6pm EDT Oct 10, 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