Irmo, SC Weather & Growing Conditions
Today
87°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 2pm, then showers and thunderstorms likely between 2pm and 5pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 87. East wind 1 to 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 87°F | Chance Showers And Thunderstorms | 1 to 5 mph E | 71% |
| Tonight | 71°F | Showers And Thunderstorms Likely | 0 to 3 mph E | 66% |
| Wednesday | 89°F | Chance Showers And Thunderstorms | 1 to 7 mph SE | 58% |
| Wednesday Night | 72°F | Showers And Thunderstorms Likely | 5 mph S | 58% |
| Thursday | 90°F | Mostly Sunny then Showers And Thunderstorms Likely | 2 to 6 mph S | 58% |
| Thursday Night | 72°F | Showers And Thunderstorms Likely | 0 to 5 mph S | 58% |
| Friday | 92°F | Chance Showers And Thunderstorms | 0 to 6 mph S | 32% |
| Friday Night | 72°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 32% |
| Saturday | 92°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 0 to 6 mph S | 21% |
| Saturday Night | 73°F | Slight Chance Showers And Thunderstorms | 1 to 6 mph S | 21% |
| Sunday | 92°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 1 to 5 mph SW | 37% |
| Sunday Night | 74°F | Chance Showers And Thunderstorms | 3 mph SW | 37% |
| Monday | 93°F | Mostly Sunny then Chance Showers And Thunderstorms | 2 to 6 mph SW | 30% |
| Monday Night | 75°F | Chance Showers And Thunderstorms | 3 mph SW | 30% |
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 Aug 4, 2026.