Weather in Irmo, SC
Irmo, Wednesday, 14 October, 06:20
Clear. Feels like 60°. High 89°, low 60°.
Monthly outlook for Irmo, SC: average high 74.1°, average low 54.6°. That is 1.5° above the climate normal for October. Precipitation is expected on 2 days (about 0.2 inches), against a normal of 3 days and 1.3 inches. The warmest day looks like 15 October (89.5°), the coolest 24 October (41.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 14 October – 23 October | 77° | 72.2° | +2.7° |
| 24 October – 2 November | 69.2° | 69.7° | -0.3° |
| 3 November – 12 November | at normal | 66° | — |
October records over 66 years
0
Irmo, Thursday, 15 October
Clear. High 89°, low 62°.
0Irmo, Friday, 16 October
Clear. High 84°, low 66°.
0
Irmo, Saturday, 17 October
Partly cloudy. High 72°, low 57°.
0Irmo, Sunday, 18 October
Clear. High 62°, low 50°.
0Irmo, Monday, 19 October
Clear. High 69°, low 49°.
0.01
Irmo, Tuesday, 20 October
Light rain. High 75°, low 59°.
0
Irmo, Wednesday, 21 October
Overcast. High 80°, low 62°.
0.02Irmo, Thursday, 22 October
Light rain. High 81°, low 60°.
0Irmo, Friday, 23 October
Clear. High 69°, low 51°.
0Irmo, Saturday, 24 October
Clear. High 69°, low 42°.
0Irmo, Sunday, 25 October
Overcast. High 75°, low 50°.
0.04Irmo, Monday, 26 October
Light rain. High 76°, low 58°.
0Irmo, Tuesday, 27 October
Clear. High 71°, low 50°.
0Irmo, Wednesday, 28 October
Overcast. High 69°, low 46°.
0.15Irmo, Thursday, 29 October
Light rain. High 56°, low 51°.
0.11Irmo, Friday, 30 October
Climate normal for this date — 60-year average.
0.07Irmo, Saturday, 31 October
Climate normal for this date — 60-year average.
0.1Irmo, Sunday, 1 November
Climate normal for this date — 60-year average.
0.09Irmo, Monday, 2 November
Climate normal for this date — 60-year average.
0.04Irmo, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.09Irmo, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.06Irmo, Thursday, 5 November
Climate normal for this date — 60-year average.
0.05
Irmo, Friday, 6 November
Climate normal for this date — 60-year average.
0.11Irmo, Saturday, 7 November
Climate normal for this date — 60-year average.
0.06Irmo, Sunday, 8 November
Climate normal for this date — 60-year average.
0.11Irmo, Monday, 9 November
Climate normal for this date — 60-year average.
0.1Irmo, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.14Irmo, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.19
Irmo, Thursday, 12 November
Climate normal for this date — 60-year average.
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Irmo, SC are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Irmo, SC since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.
Sun and moon today
Weather history
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