Summit, SC Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Summit, a town in Lexington County, South Carolina.
Tonight
71°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 11pm, then a chance of showers and thunderstorms between 11pm and midnight, then a slight chance of showers and thunderstorms between midnight and 2am. Mostly cloudy, with a low around 71. Northwest wind around 3 mph. Chance of precipitation is 30%.
7-day forecast for Summit
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 71°F | Chance Showers And Thunderstorms | 3 mph NW | 28% |
| Saturday | 91°F | Mostly Sunny then Chance Showers And Thunderstorms | 1 to 7 mph NE | 31% |
| Saturday Night | 70°F | Slight Chance Showers And Thunderstorms | 2 to 6 mph NE | 36% |
| Sunday | 88°F | Partly Sunny then Chance Showers And Thunderstorms | 3 mph NE | 30% |
| Sunday Night | 70°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 3 mph S | 30% |
| Monday | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 3 mph SW | 48% |
| Monday Night | 70°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 3 mph SE | 57% |
| Tuesday | 85°F | Showers And Thunderstorms Likely | 2 to 8 mph NE | 60% |
| Tuesday Night | 68°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 6 to 10 mph NE | 60% |
| Wednesday | 80°F | Partly Sunny then Chance Showers And Thunderstorms | 14 mph NE | 34% |
| Wednesday Night | 65°F | Chance Showers And Thunderstorms then Mostly Cloudy | 9 to 13 mph NE | 34% |
| Thursday | 80°F | Partly Sunny | 13 mph NE | 8% |
| Thursday Night | 63°F | Partly Cloudy | 5 to 12 mph NE | 8% |
| Friday | 80°F | Mostly Sunny | 10 mph N | 7% |
Forecast source: National Weather Service (api.weather.gov) for Summit (33.925, -81.423). Updated through the day.
Growing snapshot for Summit
Last spring frost
Mar 20
First fall frost
Nov 18
Growing season
244 days
Hardiness zone
8a
More local growing data for Summit: nearby ZIP 29070 weather · frost dates · planting calendar · South Carolina frost dates
Nearby towns & communities
Cayce
Chapin
Edmund
Fairview Crossroads
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Gilbert
Irmo
Lexington
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Pelion
Pine Ridge
Red Bank
South Congaree
Springdale
Swansea
West Columbia
White Knoll
All South Carolina locations ›
Climate data from the nearest NOAA station, Batesburg, Sc (5.3 mi from Summit). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.