Weather in Alpharetta, GA
Alpharetta, Sunday, 18 October, 09:16
Clear. Feels like 49°. High 65°, low 44°.
Monthly outlook for Alpharetta, GA: average high 71.9°, average low 53.9°. That is 2.1° above the climate normal for October. Precipitation is expected on 4 days (about 1.1 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 30 October (81.2°), the coolest 19 October (42.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 18 October – 27 October | 70.8° | 68.8° | +1.1° |
| 28 October – 6 November | 73.7° | 66° | +4.3° |
| 7 November – 16 November | at normal | 62° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Sandy Springs (11 mi).
0Alpharetta, Monday, 19 October
Clear. High 69°, low 43°.
0
Alpharetta, Tuesday, 20 October
Overcast. High 74°, low 45°.
0Alpharetta, Wednesday, 21 October
Clear. High 74°, low 47°.
0Alpharetta, Thursday, 22 October
Clear. High 75°, low 47°.
0Alpharetta, Friday, 23 October
Clear. High 72°, low 51°.
0Alpharetta, Saturday, 24 October
Clear. High 67°, low 52°.
0
Alpharetta, Sunday, 25 October
Partly cloudy. High 69°, low 49°.
0Alpharetta, Monday, 26 October
Overcast. High 73°, low 50°.
0Alpharetta, Tuesday, 27 October
Overcast. High 71°, low 58°.
0.41
Alpharetta, Wednesday, 28 October
Rain. High 65°, low 58°.
0.04Alpharetta, Thursday, 29 October
Light rain. High 63°, low 59°.
0.01Alpharetta, Friday, 30 October
Light rain. High 81°, low 61°.
0.52Alpharetta, Saturday, 31 October
Rain. High 74°, low 66°.
0.07Alpharetta, Sunday, 1 November
Light rain. High 80°, low 64°.
0Alpharetta, Monday, 2 November
Overcast. High 80°, low 68°.
0.06Alpharetta, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.09Alpharetta, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.13Alpharetta, Thursday, 5 November
Climate normal for this date — 60-year average.
0.06Alpharetta, Friday, 6 November
Climate normal for this date — 60-year average.
0.13
Alpharetta, Saturday, 7 November
Climate normal for this date — 60-year average.
0.09Alpharetta, Sunday, 8 November
Climate normal for this date — 60-year average.
0.1Alpharetta, Monday, 9 November
Climate normal for this date — 60-year average.
0.13Alpharetta, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.18Alpharetta, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.16Alpharetta, Thursday, 12 November
Climate normal for this date — 60-year average.
0.03
Alpharetta, Friday, 13 November
Climate normal for this date — 60-year average.
0.08Alpharetta, Saturday, 14 November
Climate normal for this date — 60-year average.
0.19Alpharetta, Sunday, 15 November
Climate normal for this date — 60-year average.
0.12Alpharetta, Monday, 16 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 Alpharetta, 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 Alpharetta, 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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