Sumter [CCOOP]SMRS1
At a river or reservoir gauge/3.1 mi away/184 ft/29 ft above here
temp, wind, gust, humidity, pressure
Weather/South Carolina/South Sumter
Alert. A Lake Wind Advisory is in force for South Sumter until 8 PM Sunday. Read the alert in full, and see what it means in the Field Book. Rain is likely tomorrow morning, from about 8 AM (57%).
Now. South Sumter is 86° and mostly clear at 2 PM. The dew point is 64°, so the air feels humid and sticky. Gentle breeze from the southwest at 8 mph.
Today and tonight. The warmest of the day has passed; it cools to about 77° by 8 PM. Tonight falls to about 58° by 8 AM, with some cloud. The sun is strong around midday: UV index 7, high. Unprotected skin can burn in under half an hour. Air quality is moderate (index 72): fine for most people, though people unusually sensitive to air pollution may feel it outdoors.
The week. The warmest day ahead is Wednesday, near 72°, and the coolest Sunday, near 60°. Rain is likely tomorrow (61%).
The sky tonight. The sun sets at 6:46 PM. The Moon is a waxing crescent, 33% lit, and sets at 10:57 PM. The next full Moon is Monday, Oct 26. After dark, look for Saturn, bright in the east-southeast. A planet shines with a steady light where the stars around it twinkle. The Orionids meteor shower is active, peaking around Oct 21: at its peak, up to about 20 meteors an hour can be seen from a dark site. The day is 11 hours 20 minutes long, 2 minutes shorter than yesterday.
As of 2:00 PM in South Sumter, South Carolina.
Air quality
Index 72, moderate, led by fine particles. Read at 2 PM from its reporting area, Columbia (SC), 33 miles off.
Yesterday measured 87, moderate.
Little smoke near the ground through Sun 8 AM: the index from smoke stays at 33 or under.
Precipitation
None in the last 3 days, to Fri 1 PM. Measured by radar and rain gauges, as water.
Visibility
Visibility stays 5 miles or more through Sun 8 AM, lowest 6 miles Sat 8 AM.
F
Now, today, and the week
On the radar over South Sumter, South CarolinaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture
The 6 instruments nearest South Sumter, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 2.5 miles away.
measured now4 instruments
Sumter [CCOOP]SMRS1
At a river or reservoir gauge/3.1 mi away/184 ft/29 ft above here
temp, wind, gust, humidity, pressure
Citizen station CW7235CW7235
In a volunteer observer's own ground/4.6 mi away/182 ft/27 ft above here
temp, humidity, wind, precip, pressure
SumterSMS
At an airfield/7.3 mi away/182 ft/27 ft above here
temp, wind, gust, visibility, precip, pressure
I-20 @ I-77SC012
Beside a road/35.6 mi away/295 ft/140 ft above here
temp, pavement temp, wind, visibility, precip
measured daily2 instruments
Sumter 2.6 SSESC-SM-23
In a volunteer observer's own ground/2.5 mi away/156 ft/1 ft above here
precip, snowfall, snow depth
ManningMANS1
At a cooperative observer's station/14.7 mi away/144 ft/11 ft below here
snowfall, snow depth, precip, high, low
Station report
The nearest airport reporting now, 7.3 mi from South Sumter, South Carolina. From its report of Oct 16, 2026, 2:35 PM local time: 3 of its 6 sheets.
No cloud below 12,000 ft; visibility 10 mi or more.
86.0 F with a dew point of 64.4 F, 49 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 5,000 ft up.
From the west southwest (240 degrees) at 9 mph, gusting 18 mph: force 3, a gentle breeze on the Beaufort scale. The strongest gust today was 20 mph.
The full report of Sumter, in 6 sheets, each beside the Field Book plates that explain it
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Snow on the ground
21 places, each with its own forecast and its own instruments.
The nearest places, each with its own forecast and the instruments nearest it.