Irmo, SC Weather & Growing Conditions
This Afternoon
79°F
Mostly Sunny
Mostly sunny, with a high near 79. East wind around 8 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 79°F | Mostly Sunny | 8 mph E | 0% |
| Tonight | 57°F | Mostly Clear | 3 to 7 mph E | 1% |
| Wednesday | 80°F | Patchy Fog then Partly Sunny | 5 to 9 mph SE | 7% |
| Wednesday Night | 63°F | Chance Light Rain | 3 to 8 mph SE | 50% |
| Thursday | 79°F | Chance Light Rain then Chance Showers And Thunderstorms | 6 mph S | 41% |
| Thursday Night | 63°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 | 53°F | Mostly Clear | 5 mph NW | 12% |
| Saturday | 74°F | Sunny | 5 mph N | 6% |
| Saturday Night | 47°F | Partly Cloudy | 3 mph N | 5% |
| Sunday | 70°F | Mostly Sunny | 3 mph N | 7% |
| Sunday Night | 44°F | Partly Cloudy | 3 mph W | 13% |
| Monday | 68°F | Sunny then Slight Chance Light Rain | 3 to 7 mph NW | 15% |
| Monday Night | 41°F | Slight Chance Light Rain | 1 to 5 mph W | 15% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Irmo, SC
Last spring frost
Apr 10
First fall frost
Oct 28
Growing season
201 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, Cedar Creek 2E, Sc (9.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.