Monthly outlook for Norcross, GA: average high 97.4°, average low 77.3°. That is 6.2° above the climate normal for August. Precipitation is expected on 8 days (about 0.9 inches), against a normal of 7 days and 2.1 inches. The warmest day looks like 21 August (104.1°), the coolest 9 August (70.3°).
97.4°/77.3°
Average high / low
+6.2°
Above normal
8 / 7
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
96°
86.1°
+5.5°
19 August – 28 August
99.9°
86°
+7.7°
29 August – 7 September
at normal
83.7°
—
August records over 66 years
101.5°10 August 2007All-time high
57.2°29 August 1992All-time low
Climate normals and records are computed from the nearest reference point — Clarkston (9 mi).
Mon, 1093° / 74°0.02
93 °
Norcross, Monday, 10 August
Light rain. High 93°, low 74°.
Pressure30.12 inHg
Wind4 mph NW
Humidity40%
Visibility6.2 mi
Dew point65°
Tue, 1196° / 78°0
96 °
Norcross, Tuesday, 11 August
Clear. High 96°, low 78°.
Pressure30.06 inHg
Wind7.1 mph NW
Humidity38%
Visibility6.2 mi
Dew point64°
Wed, 1295° / 77°0.19
95 °
Norcross, Wednesday, 12 August
Light rain. High 95°, low 77°.
Pressure29.97 inHg
Wind8.2 mph W
Humidity42%
Visibility6.2 mi
Dew point66°
Thu, 1394° / 75°0.09
94 °
Norcross, Thursday, 13 August
Light rain. High 94°, low 75°.
Pressure29.97 inHg
Wind12 mph NW
Humidity42%
Visibility—
Dew point65°
Fri, 1496° / 78°0.1
96 °
Norcross, Friday, 14 August
Light rain. High 96°, low 78°.
Pressure30.06 inHg
Wind9.3 mph W
Humidity38%
Visibility—
Dew point64°
Sat, 1598° / 79°0.07
98 °
Norcross, Saturday, 15 August
Light rain. High 98°, low 79°.
Pressure30.12 inHg
Wind11.1 mph SE
Humidity39%
Visibility—
Dew point65°
Sun, 16100° / 75°0.07
100 °
Norcross, Sunday, 16 August
Light rain. High 100°, low 75°.
Pressure30.09 inHg
Wind8.7 mph NW
Humidity35%
Visibility—
Dew point63°
Mon, 17102° / 83°0
102 °
Norcross, Monday, 17 August
Partly cloudy. High 102°, low 83°.
Pressure29.94 inHg
Wind12.2 mph NW
Humidity26%
Visibility—
Dew point58°
Tue, 1895° / 78°0.02
95 °
Norcross, Tuesday, 18 August
Light rain. High 95°, low 78°.
Pressure29.94 inHg
Wind12.1 mph NW
Humidity39%
Visibility—
Dew point63°
Wed, 1996° / 75°0
96 °
Norcross, Wednesday, 19 August
Clear. High 96°, low 75°.
Pressure30.00 inHg
Wind7.4 mph E
Humidity37%
Visibility—
Dew point62°
Thu, 20100° / 79°0.01
100 °
Norcross, Thursday, 20 August
Light rain. High 100°, low 79°.
Pressure30.00 inHg
Wind5.6 mph NE
Humidity30%
Visibility—
Dew point60°
Fri, 21104° / 84°0.13
104 °
Norcross, Friday, 21 August
Rain. High 104°, low 84°.
Pressure29.94 inHg
Wind7 mph SE
Humidity29%
Visibility—
Dew point62°
Sat, 22104° / 76°0.11
104 °
Norcross, Saturday, 22 August
Light rain. High 104°, low 76°.
Pressure29.88 inHg
Wind16.2 mph NE
Humidity29%
Visibility—
Dew point62°
Sun, 2399° / 78°0.02
99 °
Norcross, Sunday, 23 August
Light rain. High 99°, low 78°.
Pressure29.91 inHg
Wind7.7 mph E
Humidity35%
Visibility—
Dew point63°
Mon, 2497° / 78°0.01
97 °
Norcross, Monday, 24 August
Light rain. High 97°, low 78°.
Pressure30.03 inHg
Wind7.9 mph S
Humidity39%
Visibility—
Dew point63°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2585° / 69°0.17
85 °
Norcross, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high85°
Average low69°
Average precipitation0.17 in
Chance of precipitation45%
Record high95° (2023)
Record low59° (1969)
Wed, 2686° / 69°0.13
86 °
Norcross, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high86°
Average low69°
Average precipitation0.13 in
Chance of precipitation37%
Record high98° (2011)
Record low60° (2013)
Thu, 2786° / 69°0.08
86 °
Norcross, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high86°
Average low69°
Average precipitation0.08 in
Chance of precipitation27%
Record high95° (1987)
Record low59° (2025)
Fri, 2885° / 70°0.1
85 °
Norcross, Friday, 28 August
Climate normal for this date — 60-year average.
Average high85°
Average low70°
Average precipitation0.1 in
Chance of precipitation30%
Record high95° (2011)
Record low63° (2025)
Sat, 2986° / 69°0.07
86 °
Norcross, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high86°
Average low69°
Average precipitation0.07 in
Chance of precipitation37%
Record high97° (1990)
Record low57° (1992)
Sun, 3084° / 69°0.12
84 °
Norcross, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high84°
Average low69°
Average precipitation0.12 in
Chance of precipitation45%
Record high93° (1998)
Record low60° (1992)
Mon, 3183° / 69°0.17
83 °
Norcross, Monday, 31 August
Climate normal for this date — 60-year average.
Average high83°
Average low69°
Average precipitation0.17 in
Chance of precipitation52%
Record high96° (1970)
Record low59° (1986)
Tue, 0184° / 69°0.12
84 °
Norcross, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high84°
Average low69°
Average precipitation0.12 in
Chance of precipitation45%
Record high95° (1970)
Record low60° (1968)
Wed, 0283° / 68°0.12
83 °
Norcross, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high83°
Average low68°
Average precipitation0.12 in
Chance of precipitation33%
Record high96° (1970)
Record low58° (1968)
Thu, 0384° / 68°0.12
84 °
Norcross, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high84°
Average low68°
Average precipitation0.12 in
Chance of precipitation38%
Record high95° (2011)
Record low58° (2017)
Fri, 0483° / 68°0.15
83 °
Norcross, Friday, 4 September
Climate normal for this date — 60-year average.
Average high83°
Average low68°
Average precipitation0.15 in
Chance of precipitation40%
Record high95° (2019)
Record low58° (1994)
Sat, 0583° / 67°0.13
83 °
Norcross, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high83°
Average low67°
Average precipitation0.13 in
Chance of precipitation35%
Record high94° (1999)
Record low56° (1967)
Sun, 0683° / 67°0.07
83 °
Norcross, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high83°
Average low67°
Average precipitation0.07 in
Chance of precipitation32%
Record high94° (1999)
Record low57° (1984)
Mon, 0783° / 67°0.13
83 °
Norcross, Monday, 7 September
Climate normal for this date — 60-year average.
Average high83°
Average low67°
Average precipitation0.13 in
Chance of precipitation27%
Record high94° (1990)
Record low53° (2017)
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 Norcross, 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 Norcross, 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.