As of 21:42 EDT

Weather in Alpharetta, GA

51°Current weather

Alpharetta, Monday, 19 October, 21:42

Clear. Feels like 50°. High 69°, low 40°.

Pressure30.27 inHg
Wind1.5 mph NE
Humidity78%
Visibility6.2 mi
Dew point45°

Monthly outlook for Alpharetta, GA: average high 68°, average low 47.8°. That is 0.1° above the climate normal for October. Precipitation is expected on 2 days (about 0.4 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 22 October (77.1°), the coolest 29 October (38.4°).

68°/47.8°
Average high / low
+0.1°
Above normal
2 / 4
Wet days / normal
0.4 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
19 October – 28 October70.7°68.6°+1.2°
29 October – 7 November63.6°65.7°-1.2°
8 November – 17 Novemberat normal61.6°—

October records over 66 years

94.8°3 October 2019All-time high
30.7°29 October 1976All-time low

Climate normals and records are computed from the nearest reference point — Sandy Springs (11 mi).

Tue, 2074° / 42°0Partly cloudy
74 °Partly cloudy

Alpharetta, Tuesday, 20 October

Partly cloudy. High 74°, low 42°.

Pressure30.27 inHg
Wind1.9 mph NW
Humidity32%
Visibility6.2 mi
Dew point38°
Wed, 2175° / 43°0Clear
75 °Clear

Alpharetta, Wednesday, 21 October

Clear. High 75°, low 43°.

Pressure30.24 inHg
Wind4.8 mph E
Humidity33%
Visibility6.2 mi
Dew point39°
Thu, 2277° / 50°0Clear
77 °Clear

Alpharetta, Thursday, 22 October

Clear. High 77°, low 50°.

Pressure30.12 inHg
Wind2.8 mph NE
Humidity27%
Visibility6.2 mi
Dew point36°
Fri, 2373° / 53°0Clear
73 °Clear

Alpharetta, Friday, 23 October

Clear. High 73°, low 53°.

Pressure30.24 inHg
Wind7 mph E
Humidity40%
Visibility6.2 mi
Dew point42°
Sat, 2466° / 51°0Clear
66 °Clear

Alpharetta, Saturday, 24 October

Clear. High 66°, low 51°.

Pressure30.39 inHg
Wind10.8 mph E
Humidity35%
Visibility—
Dew point35°
Sun, 2568° / 48°0Clear
68 °Clear

Alpharetta, Sunday, 25 October

Clear. High 68°, low 48°.

Pressure30.45 inHg
Wind11.9 mph E
Humidity28%
Visibility—
Dew point30°
Mon, 2670° / 51°0Overcast
70 °Overcast

Alpharetta, Monday, 26 October

Overcast. High 70°, low 51°.

Pressure30.30 inHg
Wind6.1 mph NE
Humidity25%
Visibility—
Dew point29°
Tue, 2772° / 54°0Overcast
72 °Overcast

Alpharetta, Tuesday, 27 October

Overcast. High 72°, low 54°.

Pressure30.15 inHg
Wind5.7 mph W
Humidity39%
Visibility—
Dew point43°
Wed, 2863° / 43°0Partly cloudy
63 °Partly cloudy

Alpharetta, Wednesday, 28 October

Partly cloudy. High 63°, low 43°.

Pressure30.12 inHg
Wind15.9 mph NW
Humidity39%
Visibility—
Dew point32°
Thu, 2958° / 38°0Clear
58 °Clear

Alpharetta, Thursday, 29 October

Clear. High 58°, low 38°.

Pressure30.21 inHg
Wind5.9 mph NW
Humidity18%
Visibility—
Dew point11°
Fri, 3064° / 42°0Clear
64 °Clear

Alpharetta, Friday, 30 October

Clear. High 64°, low 42°.

Pressure30.18 inHg
Wind3.7 mph E
Humidity15%
Visibility—
Dew point11°
Sat, 3167° / 46°0Overcast
67 °Overcast

Alpharetta, Saturday, 31 October

Overcast. High 67°, low 46°.

Pressure30.27 inHg
Wind5.6 mph E
Humidity16%
Visibility—
Dew point16°
Sun, 0157° / 53°0.01Light rain
57 °Light rain

Alpharetta, Sunday, 1 November

Light rain. High 57°, low 53°.

Pressure30.33 inHg
Wind9.5 mph E
Humidity55%
Visibility—
Dew point40°
Mon, 0270° / 55°0.06Light rain
70 °Light rain

Alpharetta, Monday, 2 November

Light rain. High 70°, low 55°.

Pressure30.15 inHg
Wind8.3 mph E
Humidity60%
Visibility—
Dew point51°
Tue, 0365° / 55°0.31Rain
65 °Rain

Alpharetta, Tuesday, 3 November

Rain. High 65°, low 55°.

Pressure29.94 inHg
Wind12.7 mph NW
Humidity67%
Visibility—
Dew point53°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 0464° / 48°0.09Climate normal
64 °Climate normal

Alpharetta, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high64°
Average low48°
Average precipitation0.09 in
Chance of precipitation27%
Record high78° (2016)
Record low27° (1966)
Thu, 0564° / 47°0.13Climate normal
64 °Climate normal

Alpharetta, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high64°
Average low47°
Average precipitation0.13 in
Chance of precipitation22%
Record high79° (1961)
Record low29° (1991)
Fri, 0664° / 47°0.06Climate normal
64 °Climate normal

Alpharetta, Friday, 6 November

Climate normal for this date — 60-year average.

Average high64°
Average low47°
Average precipitation0.06 in
Chance of precipitation27%
Record high79° (2022)
Record low29° (1967)
Sat, 0764° / 47°0.13Climate normal
64 °Climate normal

Alpharetta, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high64°
Average low47°
Average precipitation0.13 in
Chance of precipitation33%
Record high80° (2022)
Record low29° (1967)
Sun, 0864° / 46°0.09Climate normal
64 °Climate normal

Alpharetta, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high64°
Average low46°
Average precipitation0.09 in
Chance of precipitation25%
Record high79° (2005)
Record low31° (1967)
Mon, 0964° / 46°0.1Climate normal
64 °Climate normal

Alpharetta, Monday, 9 November

Climate normal for this date — 60-year average.

Average high64°
Average low46°
Average precipitation0.1 in
Chance of precipitation25%
Record high78° (2005)
Record low28° (1976)
Tue, 1063° / 46°0.13Climate normal
63 °Climate normal

Alpharetta, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high63°
Average low46°
Average precipitation0.13 in
Chance of precipitation35%
Record high74° (1975)
Record low31° (2025)
Wed, 1162° / 45°0.18Climate normal
62 °Climate normal

Alpharetta, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high62°
Average low45°
Average precipitation0.18 in
Chance of precipitation30%
Record high75° (2020)
Record low26° (2025)
Thu, 1261° / 45°0.16Climate normal
61 °Climate normal

Alpharetta, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high61°
Average low45°
Average precipitation0.16 in
Chance of precipitation28%
Record high76° (2003)
Record low26° (2019)
Fri, 1360° / 42°0.03Climate normal
60 °Climate normal

Alpharetta, Friday, 13 November

Climate normal for this date — 60-year average.

Average high60°
Average low42°
Average precipitation0.03 in
Chance of precipitation10%
Record high73° (2007)
Record low22° (2019)
Sat, 1460° / 42°0.08Climate normal
60 °Climate normal

Alpharetta, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high60°
Average low42°
Average precipitation0.08 in
Chance of precipitation22%
Record high75° (2005)
Record low28° (2013)
Sun, 1560° / 43°0.19Climate normal
60 °Climate normal

Alpharetta, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high60°
Average low43°
Average precipitation0.19 in
Chance of precipitation33%
Record high75° (2005)
Record low23° (1969)
Mon, 1661° / 44°0.12Climate normal
61 °Climate normal

Alpharetta, Monday, 16 November

Climate normal for this date — 60-year average.

Average high61°
Average low44°
Average precipitation0.12 in
Chance of precipitation27%
Record high76° (1978)
Record low27° (1969)
Tue, 1761° / 43°0.07Climate normal
61 °Climate normal

Alpharetta, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high61°
Average low43°
Average precipitation0.07 in
Chance of precipitation25%
Record high78° (1978)
Record low26° (1997)

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.