Weather in Johns Island, SC
Johns Island, Thursday, 29 October, 21:52
Clear. Feels like 65°. High 78°, low 61°.
Monthly outlook for Johns Island, SC: average high 75.1°, average low 59.8°. That is 3.1° above the climate normal for October. Precipitation is expected on 1 day (about 0.2 inches), against a normal of 4 days and 1.5 inches. The warmest day looks like 6 November (78.3°), the coolest 12 November (49.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 29 October – 7 November | 76.3° | 70.6° | +3.2° |
| 8 November – 17 November | 73° | 66.8° | +3.4° |
| 18 November – 27 November | at normal | 65.6° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — North Charleston (8 mi).
0
Johns Island, Friday, 30 October
Clear. High 78°, low 62°.
0
Johns Island, Saturday, 31 October
Overcast. High 72°, low 60°.
0Johns Island, Sunday, 1 November
Overcast. High 74°, low 58°.
0Johns Island, Monday, 2 November
Overcast. High 74°, low 64°.
0.01
Johns Island, Tuesday, 3 November
Light rain. High 78°, low 61°.
0.02Johns Island, Wednesday, 4 November
Light rain. High 75°, low 65°.
0.11Johns Island, Thursday, 5 November
Light rain. High 78°, low 65°.
0Johns Island, Friday, 6 November
Clear. High 78°, low 61°.
0Johns Island, Saturday, 7 November
Overcast. High 78°, low 59°.
0Johns Island, Sunday, 8 November
Clear. High 76°, low 58°.
0Johns Island, Monday, 9 November
Overcast. High 77°, low 62°.
0.02Johns Island, Tuesday, 10 November
Light rain. High 77°, low 63°.
0Johns Island, Wednesday, 11 November
Overcast. High 67°, low 53°.
0Johns Island, Thursday, 12 November
Overcast. High 68°, low 50°.
0Johns Island, Friday, 13 November
Clear. High 73°, low 55°.
0.03
Johns Island, Saturday, 14 November
Climate normal for this date — 60-year average.
0.12Johns Island, Sunday, 15 November
Climate normal for this date — 60-year average.
0.07
Johns Island, Monday, 16 November
Climate normal for this date — 60-year average.
0.09Johns Island, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.05Johns Island, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.07Johns Island, Thursday, 19 November
Climate normal for this date — 60-year average.
0.05Johns Island, Friday, 20 November
Climate normal for this date — 60-year average.
0.08Johns Island, Saturday, 21 November
Climate normal for this date — 60-year average.
0.07Johns Island, Sunday, 22 November
Climate normal for this date — 60-year average.
0.1Johns Island, Monday, 23 November
Climate normal for this date — 60-year average.
0.07Johns Island, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.13Johns Island, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.08Johns Island, Thursday, 26 November
Climate normal for this date — 60-year average.
0.1Johns Island, Friday, 27 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 Johns Island, 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 Johns Island, 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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