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Severe Thunderstorms over the Plains, Heavy Rain Threat Continues over Portions of the Mississippi Valley

Heavy rainfall with localized flooding will remain possible over portions of the Mississippi Valley and the Plains through midweek. In addition, severe thunderstorms will be possible over the southern and central Plains. Some of the storms could contain damaging winds and large hail. Read More >

Current conditions at

Shaw Air Force Base (KSSC)

Lat: 33.97°NLon: 80.48°WElev: 243ft.

Mostly Cloudy

94°F

34°C

Humidity 50%
Wind Speed S 7 mph
Barometer 29.93 in (1013.4 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index103°F (39°C)
Last update 17 Aug 3:58 pm EDT
Extended Forecast for

Sumter SC

  • This
    Afternoon

    This Afternoon: A chance of showers and thunderstorms.  Partly sunny, with a steady temperature around 90. Heat index values as high as 101. South wind around 7 mph.  Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Chance
    T-storms

    High: 90 °F

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly before 8pm.  Mostly cloudy, with a low around 76. South wind around 5 mph.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Chance
    T-storms then
    Partly Cloudy

    Low: 76 °F

  • Friday

    Friday: A slight chance of showers, then a chance of showers and thunderstorms after 11am.  Mostly sunny and hot, with a high near 97. Heat index values as high as 106. Light southwest wind increasing to 5 to 10 mph in the morning.  Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Chance
    T-storms

    High: 97 °F

  • Friday
    Night

    Friday Night: A chance of showers and thunderstorms, mainly between 1am and 5am.  Mostly cloudy, with a low around 76. Southwest wind 5 to 8 mph.  Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Chance
    T-storms

    Low: 76 °F

  • Saturday

    Saturday: A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 10am, then a chance of showers and thunderstorms after 10am.  Partly sunny, with a high near 94. Southwest wind 5 to 8 mph.  Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Chance
    T-storms

    High: 94 °F

  • Saturday
    Night

    Saturday Night: A slight chance of showers and thunderstorms.  Mostly cloudy, with a low around 75. Chance of precipitation is 20%.

    Slight Chance
    T-storms

    Low: 75 °F

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 1pm.  Partly sunny, with a high near 94. Chance of precipitation is 50%.

    Chance
    Showers then
    Chance
    T-storms

    High: 94 °F

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 74.

    Partly Cloudy

    Low: 74 °F

  • Monday

    Monday: A chance of showers and thunderstorms.  Mostly sunny, with a high near 93. Chance of precipitation is 30%.

    Chance
    T-storms

    High: 93 °F

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms. Partly sunny, with a steady temperature around 90. Heat index values as high as 101. South wind around 7 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 76. South wind around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly sunny and hot, with a high near 97. Heat index values as high as 106. Light southwest wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers and thunderstorms, mainly between 1am and 5am. Mostly cloudy, with a low around 76. Southwest wind 5 to 8 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 10am, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 94. Southwest wind 5 to 8 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 75. Chance of precipitation is 20%.
Sunday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 94. Chance of precipitation is 50%.
Sunday Night
Partly cloudy, with a low around 74.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 93. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 73.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 93. Chance of precipitation is 30%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 74. Chance of precipitation is 30%.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 94. Chance of precipitation is 40%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 92.
Click Map For Forecast
Point Forecast:
Sumter SC
 33.94°N 80.4°W (Elev. 154 ft)
2:48 pm EDT Aug 17, 2017
4pm EDT Aug 17, 2017-6pm EDT Aug 24, 2017
 
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