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

Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Current conditions at

Greenwood, Greenwood County Airport (KGRD)

Lat: 34.25°NLon: 82.15°WElev: 630ft.

Fair

83°F

28°C

Humidity 72%
Wind Speed Calm
Barometer 30.06 in (1017.1 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 17 Aug 9:56 am EDT
Extended Forecast for

Waterloo SC

  • Today

    Today: Sunny, with a high near 91. Calm wind becoming north northeast around 5 mph in the afternoon.

    High: 91 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 72. Calm wind.

    Low: 72 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 94. Heat index values as high as 100. Calm wind.

    High: 94 °F

    Sunny

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms between 10pm and midnight. Mostly clear, with a low around 72. Calm wind. Chance of precipitation is 20%.

    Low: 72 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 86. Northeast wind 3 to 5 mph.

    High: 86 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    T-storms then
    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 91. Calm wind becoming north northeast around 5 mph in the afternoon.
Tonight
Mostly clear, with a low around 72. Calm wind.
Monday
Sunny, with a high near 94. Heat index values as high as 100. Calm wind.
Monday Night
A slight chance of showers and thunderstorms between 10pm and midnight. Mostly clear, with a low around 72. Calm wind. Chance of precipitation is 20%.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 86. Northeast wind 3 to 5 mph.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 70.
Wednesday
Sunny, with a high near 87.
Wednesday Night
Mostly clear, with a low around 71.
Thursday
Mostly sunny, with a high near 88.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Chance of precipitation is 40%.
Friday
Showers and thunderstorms likely. Partly sunny, with a high near 83. Chance of precipitation is 60%.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.
Saturday
Showers and thunderstorms likely. Mostly cloudy, with a high near 82. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Waterloo SC
 34.36°N 82.05°W (Elev. 600 ft)
Last Update:
6:33 am EDT Aug 17, 2025
Forecast Valid:
10am EDT Aug 17, 2025-6pm EDT Aug 23, 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