Current Conditions
Sumter, South Carolina
Wind
ESE 4 mph7 km/h
Humidity
87%
Cloud Cover
69%
As of Wednesday, September 9, 2026 at 2:40 AM EDT
Today's Outlook
Day
Mostly cloudy and hot, with a high of 90°F32°C and morning low of 70°F21°C. Light wind from the ENE around 5 mph8 km/h. Humid.
Night
Mostly cloudy, with a low around 68°F20°C. Light wind from the SE around 5 mph8 km/h.
7-Day Forecast
| Day | Condition | High (°F) | Low (°F) | Precip (mm) | Cloud Cover (%) | Wind (mph) | |
|---|---|---|---|---|---|---|---|
| Partly Cloudy | High 90°F32°C | Low 68°F20°C | Precip 0 in0 mm— | Cloud 62% | Wind E 5 mph8 km/h | Wednesday: Mostly cloudy and hot, with a high of 90°F32°C and morning low of 70°F21°C. Light wind from the ENE around 5 mph8 km/h. Humid. Wednesday Night: Mostly cloudy, with a low around 68°F20°C. Light wind from the SE around 5 mph8 km/h. | |
| Drizzle | High 90°F32°CFeels 99°F37°C | Low 73°F23°C | Precip 0.04 in0.9 mm41% | Cloud 53% | Wind S 4 mph7 km/h | Thursday: Partly cloudy and hot, with a high of 90°F32°C and morning low of 74°F24°C — feels like 99°F37°C. Light wind from the SSW around 3 mph5 km/h. 41% chance of drizzle in the afternoon. Heat risk in the afternoon. Thursday Night: Mostly cloudy, with a low around 73°F23°C. Breezy from the S at 5 to 7 mph8 to 12 km/h. 23% chance of drizzle in the evening. | |
| Light Rain | High 92°F33°CFeels 101°F38°C | Low 76°F24°C | Precip 0.14 in3.5 mm69% | Cloud 72% | Wind SSW 5 mph8 km/h | Friday: Mostly cloudy and hot, with a high of 92°F33°C and morning low of 76°F25°C — feels like 100°F38°C. Light wind from the SSW around 5 mph7 km/h. 69% chance of showers in the afternoon. Heat risk in the afternoon. Friday Night: Overcast, with a low around 76°F24°C. Light wind from the SSW around 6 mph9 km/h. 43% chance of light rain in the evening. | |
| Light Rain | High 88°F31°CFeels 96°F35°C | Low 75°F24°C | Precip 0.27 in6.9 mm75% | Cloud 81% | Wind SSW 5 mph8 km/h | Saturday: Mostly cloudy and hot, with a high of 88°F31°C and morning low of 76°F24°C — feels like 95°F35°C. Breezy from the SSW at 5 to 7 mph9 to 11 km/h. 75% chance of light rain throughout the day. Heat risk in the afternoon. Saturday Night: Overcast, with a low around 75°F24°C. Light wind from the SSW around 5 mph8 km/h. 73% chance of light rain throughout the night. | |
| Showers | High 90°F32°CFeels 98°F37°C | Low 76°F24°C | Precip 0.13 in3.3 mm49% | Cloud 58% | Wind SW 5 mph7 km/h | Sunday: Mostly cloudy and hot, with a high of 90°F32°C and morning low of 76°F25°C — feels like 99°F37°C. Light wind from the WSW around 5 mph7 km/h. 34% chance of showers throughout the day. Heat risk in the afternoon. Sunday Night: Mostly cloudy, with a low around 76°F24°C. Light wind from the SSW around 5 mph7 km/h. 49% chance of showers throughout the night. | |
| Drizzle | High 92°F33°CFeels 98°F37°C | Low 75°F24°C | Precip 0.02 in0.6 mm17% | Cloud 28% | Wind NE 5 mph8 km/h | Monday: Partly cloudy and hot, with a high of 92°F33°C and morning low of 76°F24°C — feels like 99°F37°C. Light wind from the NE around 5 mph8 km/h. 17% chance of drizzle in the afternoon. Heat risk in the afternoon. Monday Night: Partly cloudy, with a low around 75°F24°C. Light wind from the SE around 5 mph8 km/h. | |
| Drizzle | High 88°F31°CFeels 91°F33°C | Low 74°F23°C | Precip 0.04 in1.1 mm26% | Cloud 45% | Wind E 6 mph10 km/h | Tuesday: Mostly cloudy and hot, with a high of 88°F31°C and morning low of 74°F24°C. Breezy from the E at 7 to 8 mph11 to 12 km/h. 26% chance of drizzle throughout the day. Humid. Tuesday Night: Partly cloudy, with a low around 74°F23°C. Light wind from the ESE around 6 mph9 km/h. 12% chance of drizzle in the evening. |
15-Day Forecast
| Day | High | Low | Precip | Cloud Cover | Condition | Wind | |
|---|---|---|---|---|---|---|---|
| WednesdaySep 9 | 90°F32°C | 68°F20°C | 0 in0 mm· — | 62% | Partly Cloudy | E 5 mph8 km/h | |
DayMostly cloudy and hot, with a high of 90°F32°C and morning low of 70°F21°C. Light wind from the ENE around 5 mph8 km/h. Humid. NightMostly cloudy, with a low around 68°F20°C. Light wind from the SE around 5 mph8 km/h. | |||||||
| ThursdaySep 10 | 90°F32°C Feels 99°F37°C | 73°F23°C | 0.04 in0.9 mm· 41% | 53% | Drizzle | S 4 mph7 km/h | |
DayPartly cloudy and hot, with a high of 90°F32°C and morning low of 74°F24°C — feels like 99°F37°C. Light wind from the SSW around 3 mph5 km/h. 41% chance of drizzle in the afternoon. Heat risk in the afternoon. NightMostly cloudy, with a low around 73°F23°C. Breezy from the S at 5 to 7 mph8 to 12 km/h. 23% chance of drizzle in the evening. | |||||||
| FridaySep 11 | 92°F33°C Feels 101°F38°C | 76°F24°C | 0.14 in3.5 mm· 69% | 72% | Light Rain | SSW 5 mph8 km/h | |
DayMostly cloudy and hot, with a high of 92°F33°C and morning low of 76°F25°C — feels like 100°F38°C. Light wind from the SSW around 5 mph7 km/h. 69% chance of showers in the afternoon. Heat risk in the afternoon. NightOvercast, with a low around 76°F24°C. Light wind from the SSW around 6 mph9 km/h. 43% chance of light rain in the evening. | |||||||
| SaturdaySep 12 | 88°F31°C Feels 96°F35°C | 75°F24°C | 0.27 in6.9 mm· 75% | 81% | Light Rain | SSW 5 mph8 km/h | |
DayMostly cloudy and hot, with a high of 88°F31°C and morning low of 76°F24°C — feels like 95°F35°C. Breezy from the SSW at 5 to 7 mph9 to 11 km/h. 75% chance of light rain throughout the day. Heat risk in the afternoon. NightOvercast, with a low around 75°F24°C. Light wind from the SSW around 5 mph8 km/h. 73% chance of light rain throughout the night. | |||||||
| SundaySep 13 | 90°F32°C Feels 98°F37°C | 76°F24°C | 0.13 in3.3 mm· 49% | 58% | Showers | SW 5 mph7 km/h | |
DayMostly cloudy and hot, with a high of 90°F32°C and morning low of 76°F25°C — feels like 99°F37°C. Light wind from the WSW around 5 mph7 km/h. 34% chance of showers throughout the day. Heat risk in the afternoon. NightMostly cloudy, with a low around 76°F24°C. Light wind from the SSW around 5 mph7 km/h. 49% chance of showers throughout the night. | |||||||
| MondaySep 14 | 92°F33°C Feels 98°F37°C | 75°F24°C | 0.02 in0.6 mm· 17% | 28% | Drizzle | NE 5 mph8 km/h | |
DayPartly cloudy and hot, with a high of 92°F33°C and morning low of 76°F24°C — feels like 99°F37°C. Light wind from the NE around 5 mph8 km/h. 17% chance of drizzle in the afternoon. Heat risk in the afternoon. NightPartly cloudy, with a low around 75°F24°C. Light wind from the SE around 5 mph8 km/h. | |||||||
| TuesdaySep 15 | 88°F31°C Feels 91°F33°C | 74°F23°C | 0.04 in1.1 mm· 26% | 45% | Drizzle | E 6 mph10 km/h | |
DayMostly cloudy and hot, with a high of 88°F31°C and morning low of 74°F24°C. Breezy from the E at 7 to 8 mph11 to 12 km/h. 26% chance of drizzle throughout the day. Humid. NightPartly cloudy, with a low around 74°F23°C. Light wind from the ESE around 6 mph9 km/h. 12% chance of drizzle in the evening. | |||||||
| WednesdaySep 16 | 90°F32°C Feels 93°F34°C | 71°F22°C | 0.02 in0.5 mm· 7% | 35% | Clear | E 5 mph8 km/h | |
DayPartly cloudy and hot, with a high of 90°F32°C and morning low of 72°F22°C. Light wind from the ENE around 5 mph8 km/h. Humid. NightPartly cloudy, with a low around 71°F22°C. Light wind from the ESE around 5 mph8 km/h. | |||||||
| ThursdaySep 17 | 90°F32°C Feels 94°F35°C | 71°F22°C | 0.02 in0.4 mm· 9% | 28% | Clear | SE 5 mph7 km/h | |
DayPartly cloudy and hot, with a high of 90°F32°C and morning low of 72°F22°C. Light wind from the E around 5 mph7 km/h. Humid. NightMostly clear, with a low around 71°F22°C. Light wind from the SSE around 5 mph8 km/h. | |||||||
| FridaySep 18 | 91°F33°C Feels 96°F35°C | 72°F22°C | 0.04 in1.1 mm· 22% | 36% | Drizzle | S 5 mph8 km/h | |
DayPartly cloudy and hot, with a high of 91°F33°C and morning low of 73°F23°C. Light wind from the SSW around 5 mph8 km/h. 18% chance of drizzle in the afternoon. Heat risk in the afternoon. NightPartly cloudy, with a low around 72°F22°C. Light wind from the S around 5 mph8 km/h. 22% chance of drizzle in the evening. | |||||||
| SaturdaySep 19 | 89°F31°C Feels 93°F34°C | 73°F23°C | 0.15 in3.8 mm· 33% | 48% | Showers | S 6 mph9 km/h | |
DayPartly cloudy and hot, with a high of 89°F31°C and morning low of 74°F23°C. Light wind from the SW around 6 mph9 km/h. 33% chance of showers throughout the day. Humid. NightPartly cloudy, with a low around 73°F23°C. Breezy from the S at 6 to 7 mph10 to 11 km/h. 25% chance of showers throughout the night. | |||||||
| SundaySep 20 | 85°F29°C | 72°F22°C | 0.17 in4.2 mm· 30% | 57% | Showers | ESE 7 mph11 km/h | |
DayMostly cloudy and warm, with a high of 85°F29°C and morning low of 72°F22°C. Breezy from the NE at 7 to 8 mph12 to 12 km/h. 30% chance of showers throughout the day. Humid. NightMostly cloudy, with a low around 72°F22°C. Breezy from the SE at 7 mph11 km/h. 30% chance of showers throughout the night. | |||||||
| MondaySep 21 | 81°F27°C | 70°F21°C | 0.19 in4.7 mm· 30% | 66% | Showers | NE 8 mph13 km/h | |
DayMostly cloudy and warm, with a high of 81°F27°C and morning low of 70°F21°C. Breezy from the NE at 9 mph14 km/h. 30% chance of showers throughout the day. NightMostly cloudy, with a low around 70°F21°C. Breezy from the ENE at 7 to 8 mph12 to 13 km/h. 27% chance of showers throughout the night. | |||||||
| TuesdaySep 22 | 79°F26°C | 67°F19°C | 0.17 in4.3 mm· 31% | 65% | Showers | NE 8 mph13 km/h | |
DayMostly cloudy and warm, with a high of 79°F26°C and morning low of 67°F19°C. Breezy from the NE at 9 to 10 mph14 to 16 km/h. 31% chance of showers throughout the day. NightMostly cloudy, with a low around 67°F20°C. Breezy from the ENE at 8 mph13 km/h. 30% chance of showers throughout the night. | |||||||
| WednesdaySep 23 | 80°F26°C | 66°F19°C | 0.18 in4.5 mm· 29% | 65% | Showers | NE 8 mph13 km/h | |
DayMostly cloudy and warm, with a high of 80°F26°C and morning low of 66°F19°C. Breezy from the NE at 9 mph14 km/h. 29% chance of showers throughout the day. NightMostly cloudy, with a low around 67°F19°C. Breezy from the NE at 8 mph12 km/h. 28% chance of showers throughout the night. | |||||||
Nearby Cities
About This Forecast
This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.
WeatherMesh consistently outperforms legacy models in independent benchmarks. View Benchmarks →
Access WeatherMesh forecasts programmatically via our API. API Documentation →
Coordinates: 33.9204°N, 80.3415°W·Elevation: 52m·Timezone: America/New_York·Population: 40,816