Irmo, SC Weather & Growing Conditions
This Afternoon
91°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms before 4pm. Mostly sunny, with a high near 91. Northeast wind around 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 91°F | Slight Chance Showers And Thunderstorms | 5 mph NE | 16% |
| Tonight | 71°F | Chance Showers And Thunderstorms | 5 mph E | 33% |
| Sunday | 91°F | Patchy Fog then Mostly Sunny | 3 mph E | 10% |
| Sunday Night | 71°F | Mostly Clear | 2 mph SE | 10% |
| Monday | 92°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 3 mph SE | 21% |
| Monday Night | 71°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 3 mph SE | 54% |
| Tuesday | 87°F | Showers And Thunderstorms Likely | 2 to 7 mph E | 71% |
| Tuesday Night | 68°F | Showers And Thunderstorms Likely | 5 to 8 mph NE | 71% |
| Wednesday | 81°F | Chance Rain Showers | 8 to 12 mph NE | 31% |
| Wednesday Night | 64°F | Chance Showers And Thunderstorms | 8 to 12 mph NE | 31% |
| Thursday | 78°F | Slight Chance Rain Showers | 10 mph N | 16% |
| Thursday Night | 62°F | Partly Cloudy | 5 to 10 mph N | 13% |
| Friday | 80°F | Mostly Sunny | 8 mph N | 6% |
| Friday Night | 60°F | Partly Cloudy | 2 to 7 mph NE | 6% |
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 Sep 19, 2026.