Sumter, SC Weather

Sumter County5:34 AM EDT33.92°N, 80.34°WElevation 171 ft

Current conditions

Partly Cloudy
51°
Partly Cloudy
Feels like 51°
High 73°·Low 45° tonight
WindNE 7 mph
Humidity64%
Dew point39°
Pressure30.15 inHg
Visibility10.0 mi
Cloud cover33%
UV index0 Low
Sunrise7:32 AM
Sunset6:42 PM

Observed at Shaw Air Force Base · 1 hr ago

Forecast

10-day
  • Overnight

    Partly cloudy, with a low around 45. North wind around 5 mph.

  • Wednesday

    Sunny, with a high near 73. North wind 5 to 8 mph.

  • Wednesday Night

    Clear, with a low around 44. North wind 0 to 3 mph.

National Weather Service forecast updated 3 hrs ago.

  1. Now Partly Cloudy 46°
  2. 6 AM Mostly Sunny 45°
  3. 7 AM Sunny 45°
  4. 8 AM Sunny 47°
  5. 9 AM Sunny 51°
  6. 10 AM Sunny 57°
  7. 11 AM Sunny 62°
  8. 12 PM Sunny 66°
  9. 1 PM Sunny 70°
  10. 2 PM Sunny 71°
  11. 3 PM Sunny 72°
  12. 4 PM Sunny 73°
  13. 5 PM Sunny 71°
  14. 6 PM Clear 69°
  15. 7 PM Clear 65°
  16. 8 PM Clear 59°
  17. 9 PM Clear 57°
  18. 10 PM Clear 54°
  19. 11 PM Clear 52°
  20. Thu12 AM Clear 51°
  21. 1 AM Clear 50°
  22. 2 AM Clear 49°
  23. 3 AM Clear 49°
  24. 4 AM Clear 47°

10-day forecast

Details
  1. TonightOct 20 Partly Cloudy Partly Cloudy45°
  2. TodayOct 21 Sunny Sunny44°73°
  3. ThuOct 22 Sunny Sunny45°73°
  4. FriOct 23 Sunny Sunny46°70°
  5. SatOct 24 Sunny Sunny48°66°
  6. SunOct 25 Sunny Sunny47°70°
  7. MonOct 26 Sunny Sunny48°73°
  8. TueOct 27 Mostly Sunny Mostly Sunny75°
  9. WedOct 28 Cloudy Cloudy50°73°
  10. ThuOct 29 Sunny Sunny53°73°

Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.

Radar

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Weather news near Sumter

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Air quality

37
Good
Ozone

Air quality is satisfactory, and air pollution poses little or no risk.

Columbia, SC reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.

Sun & moon

Sunrise 7:32 AM
Sunset 6:42 PM
Daylight 11 h 9 min (−2 min 0 s tomorrow)
Waxing Gibbous · 76% lit
Moonrise 4:07 PM Moonset 2:49 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Normal high / low73° / 49°
Record high88° (1905)
Record low31° (1981)
Wettest2.44 in (1995)
Yesterday70° / 43°
Month to date1.24 in (normal 2.84 in)

Sumter, records since 1901. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Nearby

Forecasters' discussion

From the National Weather Service office in CAE, issued 3 hrs ago

What Has Changed

Little change in the forecast the remainder of this week. Aviation discussion for the 06z TAFs.

Key Messages

- 1. Dry weather continues the remainder of this week and into the weekend with temperatures near to just below normal.

Discussion

Key Message 1: Dry weather continues the remainder of this week and into the weekend with temperatures near to just below normal.

Another fairly rinse and repeat forecast is expected over the coming 5 days or so. After a chilly morning with temperatures in the low to mid 40s, afternoon temperatures today are expected to top out near normal values, in the mid to upper 70s. This comes as high pressure lingers in the region with a very dry airmass (PWAT's under 0.50"). Heading into the late week, a deep trough currently off the southern CA coast, will slowly work eastward into the Four Corners region, further amplifying the central CONUS ridge and troughing over the eastern US. While this upper level pattern should not bring any significant changes to the pattern we are currently in, high temperatures Friday and Saturday continue to trend cooler, toward the upper 60s to low 70s Friday and the mid to upper 60s Saturday. Late this weekend into early next week, temperatures likely near normal values again as global models show the ridge finally building overhead with surface high pressure working into the Carolinas. As discussed the past few days, the chance for meaningful rainfall remains very low into early next week with minimal moisture advection into the Southeast.

Aviation

VFR conditions likely through the next 24 hours.

Light northerly flow will remain in place with strong high pressure still over the region. Expect clear or mostly clear skies. North or NNE winds around 5 kts will become light and variable or calm around sunset and remain that way overnight. Shallow fog off the river will be possible at AGS early Thursday morning but confidence is low at this point.

EXTENDED AVIATION OUTLOOK...Moisture creeps back into the area this weekend. Some patchy fog will be possible late in the extended.

Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Search index and reflects what the press published. Terms of use.