Monthly outlook for Gresham Park, GA: average high 90.7°, average low 74.3°. That is 2.5° above the climate normal for August. Precipitation is expected on 8 days (about 1.1 inches), against a normal of 7 days and 2.1 inches. The warmest day looks like 20 August (96.7°), the coolest 8 August (69.9°).
90.7°/74.3°
Average high / low
+2.5°
Above normal
8 / 7
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
90.2°
86.1°
+2.3°
18 August – 27 August
91.6°
86.3°
+3°
28 August – 6 September
at normal
84.1°
—
August records over 66 years
101.3°10 August 2007All-time high
57.4°29 August 1967All-time low
Climate normals and records are computed from the nearest reference point — Decatur (5 mi).
Sun, 0988° / 71°0.01
88 °
Gresham Park, Sunday, 9 August
Light rain. High 88°, low 71°.
Pressure30.12 inHg
Wind4.2 mph S
Humidity47%
Visibility6.2 mi
Dew point67°
Mon, 1094° / 73°0.04
94 °
Gresham Park, Monday, 10 August
Light rain. High 94°, low 73°.
Pressure30.15 inHg
Wind4.7 mph SW
Humidity45%
Visibility6.2 mi
Dew point67°
Tue, 1195° / 78°0.02
95 °
Gresham Park, Tuesday, 11 August
Light rain. High 95°, low 78°.
Pressure30.09 inHg
Wind6.5 mph W
Humidity41%
Visibility6.2 mi
Dew point66°
Wed, 1297° / 78°0.02
97 °
Gresham Park, Wednesday, 12 August
Light rain. High 97°, low 78°.
Pressure30.00 inHg
Wind10.1 mph W
Humidity46%
Visibility6.2 mi
Dew point68°
Thu, 1395° / 76°0.09
95 °
Gresham Park, Thursday, 13 August
Light rain. High 95°, low 76°.
Pressure29.94 inHg
Wind12.2 mph W
Humidity38%
Visibility—
Dew point63°
Fri, 1481° / 74°0.11
81 °
Gresham Park, Friday, 14 August
Light rain. High 81°, low 74°.
Pressure30.06 inHg
Wind10.8 mph W
Humidity70%
Visibility—
Dew point69°
Sat, 1584° / 72°0
84 °
Gresham Park, Saturday, 15 August
Light rain. High 84°, low 72°.
Pressure30.18 inHg
Wind5.5 mph NW
Humidity57%
Visibility—
Dew point65°
Sun, 1688° / 73°0.01
88 °
Gresham Park, Sunday, 16 August
Light rain. High 88°, low 73°.
Pressure30.18 inHg
Wind6.3 mph SE
Humidity43%
Visibility—
Dew point61°
Mon, 1789° / 72°0.06
89 °
Gresham Park, Monday, 17 August
Light rain. High 89°, low 72°.
Pressure30.15 inHg
Wind7.3 mph S
Humidity46%
Visibility—
Dew point63°
Tue, 1890° / 73°0.28
90 °
Gresham Park, Tuesday, 18 August
Light rain. High 90°, low 73°.
Pressure30.03 inHg
Wind9.2 mph SW
Humidity48%
Visibility—
Dew point65°
Wed, 1996° / 74°0.19
96 °
Gresham Park, Wednesday, 19 August
Rain. High 96°, low 74°.
Pressure29.91 inHg
Wind9.6 mph NW
Humidity42%
Visibility—
Dew point64°
Thu, 2097° / 79°0
97 °
Gresham Park, Thursday, 20 August
Partly cloudy. High 97°, low 79°.
Pressure29.91 inHg
Wind8.6 mph W
Humidity34%
Visibility—
Dew point62°
Fri, 2187° / 79°0.13
87 °
Gresham Park, Friday, 21 August
Rain. High 87°, low 79°.
Pressure29.94 inHg
Wind9.3 mph W
Humidity82%
Visibility—
Dew point74°
Sat, 2292° / 74°0.14
92 °
Gresham Park, Saturday, 22 August
Light rain. High 92°, low 74°.
Pressure29.91 inHg
Wind12.5 mph NW
Humidity63%
Visibility—
Dew point68°
Sun, 2389° / 74°0.06
89 °
Gresham Park, Sunday, 23 August
Light rain. High 89°, low 74°.
Pressure29.94 inHg
Wind8.8 mph N
Humidity46%
Visibility—
Dew point63°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2486° / 69°0.15
86 °
Gresham Park, Monday, 24 August
Climate normal for this date — 60-year average.
Average high86°
Average low69°
Average precipitation0.15 in
Chance of precipitation45%
Record high99° (1983)
Record low60° (1969)
Tue, 2585° / 69°0.17
85 °
Gresham Park, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high85°
Average low69°
Average precipitation0.17 in
Chance of precipitation43%
Record high95° (2023)
Record low59° (1969)
Wed, 2686° / 69°0.13
86 °
Gresham Park, 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°0.09
86 °
Gresham Park, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high86°
Average low69°
Average precipitation0.09 in
Chance of precipitation25%
Record high96° (2023)
Record low59° (2025)
Fri, 2886° / 70°0.1
86 °
Gresham Park, Friday, 28 August
Climate normal for this date — 60-year average.
Average high86°
Average low70°
Average precipitation0.1 in
Chance of precipitation32%
Record high95° (1987)
Record low63° (2025)
Sat, 2986° / 69°0.07
86 °
Gresham Park, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high86°
Average low69°
Average precipitation0.07 in
Chance of precipitation33%
Record high97° (1990)
Record low57° (1967)
Sun, 3084° / 69°0.12
84 °
Gresham Park, 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 low59° (1992)
Mon, 3184° / 69°0.17
84 °
Gresham Park, Monday, 31 August
Climate normal for this date — 60-year average.
Average high84°
Average low69°
Average precipitation0.17 in
Chance of precipitation48%
Record high96° (1970)
Record low59° (1986)
Tue, 0184° / 69°0.11
84 °
Gresham Park, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high84°
Average low69°
Average precipitation0.11 in
Chance of precipitation45%
Record high95° (1970)
Record low61° (1968)
Wed, 0284° / 68°0.12
84 °
Gresham Park, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high84°
Average low68°
Average precipitation0.12 in
Chance of precipitation33%
Record high96° (1970)
Record low59° (1968)
Thu, 0384° / 68°0.12
84 °
Gresham Park, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high84°
Average low68°
Average precipitation0.12 in
Chance of precipitation40%
Record high95° (2011)
Record low58° (1967)
Fri, 0483° / 68°0.16
83 °
Gresham Park, Friday, 4 September
Climate normal for this date — 60-year average.
Average high83°
Average low68°
Average precipitation0.16 in
Chance of precipitation38%
Record high95° (2019)
Record low58° (1994)
Sat, 0583° / 67°0.12
83 °
Gresham Park, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high83°
Average low67°
Average precipitation0.12 in
Chance of precipitation35%
Record high94° (1999)
Record low57° (1967)
Sun, 0683° / 67°0.07
83 °
Gresham Park, 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)
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 Gresham Park, 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 Gresham Park, 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.