Weather in St. Simons, GA
St. Simons, Monday, 12 October, 05:59
Clear. Feels like 63°. High 83°, low 63°.
Monthly outlook for St. Simons, GA: average high 77.5°, average low 67.6°. That is 1° above the climate normal for October. Precipitation is expected on 8 days (about 4.2 inches), against a normal of 4 days and 1.2 inches. The warmest day looks like 16 October (85°), the coolest 12 October (62.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 12 October – 21 October | 79.7° | 76.5° | +1.8° |
| 22 October – 31 October | 74° | 74.2° | -0.1° |
| 1 November – 10 November | at normal | 71.6° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Jekyll Island (8 mi).
0
St. Simons, Tuesday, 13 October
Clear. High 84°, low 66°.
0St. Simons, Wednesday, 14 October
Clear. High 83°, low 65°.
0St. Simons, Thursday, 15 October
Clear. High 83°, low 68°.
0St. Simons, Friday, 16 October
Clear. High 85°, low 65°.
0
St. Simons, Saturday, 17 October
Overcast. High 73°, low 67°.
0.07
St. Simons, Sunday, 18 October
Light rain. High 74°, low 69°.
0.09St. Simons, Monday, 19 October
Light rain. High 79°, low 72°.
0.45St. Simons, Tuesday, 20 October
Light rain. High 79°, low 73°.
1.58St. Simons, Wednesday, 21 October
Rain. High 74°, low 69°.
0.83St. Simons, Thursday, 22 October
Rain. High 72°, low 69°.
0.94St. Simons, Friday, 23 October
Rain. High 75°, low 69°.
0.05St. Simons, Saturday, 24 October
Light rain. High 77°, low 70°.
0.01St. Simons, Sunday, 25 October
Light rain. High 75°, low 66°.
0.02St. Simons, Monday, 26 October
Light rain. High 78°, low 65°.
0.12St. Simons, Tuesday, 27 October
Light rain. High 68°, low 66°.
0.08
St. Simons, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.13St. Simons, Thursday, 29 October
Climate normal for this date — 60-year average.
0.06St. Simons, Friday, 30 October
Climate normal for this date — 60-year average.
0.11St. Simons, Saturday, 31 October
Climate normal for this date — 60-year average.
0.06St. Simons, Sunday, 1 November
Climate normal for this date — 60-year average.
0.07St. Simons, Monday, 2 November
Climate normal for this date — 60-year average.
0.04St. Simons, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.07St. Simons, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.11St. Simons, Thursday, 5 November
Climate normal for this date — 60-year average.
0.11
St. Simons, Friday, 6 November
Climate normal for this date — 60-year average.
0.08St. Simons, Saturday, 7 November
Climate normal for this date — 60-year average.
0.05St. Simons, Sunday, 8 November
Climate normal for this date — 60-year average.
0.08St. Simons, Monday, 9 November
Climate normal for this date — 60-year average.
0.09St. Simons, Tuesday, 10 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 St. Simons, GA 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 St. Simons, GA 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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