Irmo, SC Weather & Growing Conditions
Tonight
59°F
Mostly Clear
Mostly clear, with a low around 59. East wind 3 to 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 59°F | Mostly Clear | 3 to 7 mph E | 1% |
| Wednesday | 81°F | Patchy Fog then Partly Sunny | 5 to 9 mph SE | 8% |
| Wednesday Night | 65°F | Chance Light Rain | 3 to 8 mph SE | 53% |
| Thursday | 80°F | Chance Light Rain then Chance Showers And Thunderstorms | 6 mph S | 43% |
| Thursday Night | 64°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 2 mph S | 62% |
| Friday | 78°F | Showers And Thunderstorms Likely | 2 to 6 mph SW | 63% |
| Friday Night | 55°F | Mostly Clear | 5 mph NW | 12% |
| Saturday | 74°F | Sunny | 5 mph N | 6% |
| Saturday Night | 48°F | Partly Cloudy | 3 mph N | 5% |
| Sunday | 70°F | Mostly Sunny | 5 mph N | 7% |
| Sunday Night | 46°F | Partly Cloudy | 3 mph W | 13% |
| Monday | 69°F | Sunny then Slight Chance Light Rain | 3 to 7 mph NW | 15% |
| Monday Night | 42°F | Slight Chance Light Rain | 5 mph W | 15% |
| Tuesday | 70°F | Sunny | 2 to 8 mph W | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Irmo, SC
Last spring frost
Mar 25
First fall frost
Nov 7
Growing season
229 days
Hardiness zone
8b
Explore more for Irmo, SC: full frost dates · planting calendar · South Carolina frost dates
Climate data from the nearest NOAA station, Columbia, Sc (10.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.