Monthly outlook for Grandview Heights, OH: average high 80.4°, average low 64°. That is 0.7° below the climate normal for August. Precipitation is expected on 6 days (about 4.3 inches), against a normal of 6 days and 1.6 inches. The warmest day looks like 10 August (90.5°), the coolest 21 August (56.4°).
80.4°/64°
Average high / low
−0.7°
Below normal
6 / 6
Wet days / normal
4.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
81.2°
81.8°
-0.3°
19 August – 28 August
79.1°
81.6°
-1.4°
29 August – 7 September
at normal
80°
—
August records over 66 years
97°20 August 1983All-time high
45.5°29 August 1965All-time low
Climate normals and records are computed from the nearest reference point — Columbus (3 mi).
Mon, 1091° / 69°0.53
91 °
Grandview Heights, Monday, 10 August
Rain. High 91°, low 69°.
Pressure30.03 inHg
Wind10.9 mph W
Humidity63%
Visibility6.2 mi
Dew point72°
Tue, 1182° / 67°1.78
82 °
Grandview Heights, Tuesday, 11 August
Heavy rain. High 82°, low 67°.
Pressure29.94 inHg
Wind11.9 mph SW
Humidity77%
Visibility6.2 mi
Dew point67°
Wed, 1283° / 70°1.67
83 °
Grandview Heights, Wednesday, 12 August
Heavy rain. High 83°, low 70°.
Pressure29.80 inHg
Wind1.9 mph NW
Humidity81%
Visibility6.2 mi
Dew point74°
Thu, 1377° / 64°0
77 °
Grandview Heights, Thursday, 13 August
Partly cloudy. High 77°, low 64°.
Pressure30.00 inHg
Wind7.2 mph N
Humidity55%
Visibility—
Dew point58°
Fri, 1477° / 65°0
77 °
Grandview Heights, Friday, 14 August
Partly cloudy. High 77°, low 65°.
Pressure30.09 inHg
Wind6.6 mph N
Humidity46%
Visibility—
Dew point53°
Sat, 1577° / 62°0
77 °
Grandview Heights, Saturday, 15 August
Overcast. High 77°, low 62°.
Pressure30.27 inHg
Wind4 mph N
Humidity52%
Visibility—
Dew point56°
Sun, 1678° / 61°0
78 °
Grandview Heights, Sunday, 16 August
Overcast. High 78°, low 61°.
Pressure30.15 inHg
Wind4.5 mph W
Humidity51%
Visibility—
Dew point57°
Mon, 1775° / 66°0
75 °
Grandview Heights, Monday, 17 August
Light rain. High 75°, low 66°.
Pressure30.06 inHg
Wind4.9 mph W
Humidity68%
Visibility—
Dew point62°
Tue, 1883° / 64°0
83 °
Grandview Heights, Tuesday, 18 August
Mostly clear. High 83°, low 64°.
Pressure30.00 inHg
Wind5.1 mph W
Humidity53%
Visibility—
Dew point62°
Wed, 1984° / 66°0.15
84 °
Grandview Heights, Wednesday, 19 August
Light rain. High 84°, low 66°.
Pressure29.85 inHg
Wind10.4 mph W
Humidity58%
Visibility—
Dew point65°
Thu, 2068° / 59°0
68 °
Grandview Heights, Thursday, 20 August
Overcast. High 68°, low 59°.
Pressure29.94 inHg
Wind9.9 mph NW
Humidity63%
Visibility—
Dew point53°
Fri, 2175° / 56°0
75 °
Grandview Heights, Friday, 21 August
Clear. High 75°, low 56°.
Pressure30.03 inHg
Wind7 mph N
Humidity45%
Visibility—
Dew point50°
Sat, 2278° / 57°0.04
78 °
Grandview Heights, Saturday, 22 August
Light rain. High 78°, low 57°.
Pressure29.97 inHg
Wind7.2 mph S
Humidity45%
Visibility—
Dew point52°
Sun, 2387° / 66°0.09
87 °
Grandview Heights, Sunday, 23 August
Light rain. High 87°, low 66°.
Pressure29.91 inHg
Wind8.3 mph W
Humidity49%
Visibility—
Dew point62°
Mon, 2483° / 67°0
83 °
Grandview Heights, Monday, 24 August
Mostly clear. High 83°, low 67°.
Pressure30.03 inHg
Wind5.6 mph NW
Humidity44%
Visibility—
Dew point57°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2582° / 64°0.06
82 °
Grandview Heights, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high82°
Average low64°
Average precipitation0.06 in
Chance of precipitation30%
Record high91° (2006)
Record low53° (1984)
Wed, 2682° / 64°0.11
82 °
Grandview Heights, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high82°
Average low64°
Average precipitation0.11 in
Chance of precipitation32%
Record high92° (2024)
Record low53° (2017)
Thu, 2782° / 65°0.06
82 °
Grandview Heights, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.06 in
Chance of precipitation28%
Record high93° (2024)
Record low53° (2025)
Fri, 2882° / 65°0.11
82 °
Grandview Heights, Friday, 28 August
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.11 in
Chance of precipitation33%
Record high92° (2024)
Record low51° (1968)
Sat, 2981° / 64°0.16
81 °
Grandview Heights, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.16 in
Chance of precipitation35%
Record high92° (1991)
Record low46° (1965)
Sun, 3081° / 64°0.16
81 °
Grandview Heights, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.16 in
Chance of precipitation33%
Record high95° (2024)
Record low48° (1986)
Mon, 3180° / 63°0.09
80 °
Grandview Heights, Monday, 31 August
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.09 in
Chance of precipitation33%
Record high93° (2012)
Record low51° (2009)
Tue, 0180° / 63°0.11
80 °
Grandview Heights, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.11 in
Chance of precipitation28%
Record high92° (2010)
Record low50° (1967)
Wed, 0281° / 63°0.08
81 °
Grandview Heights, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high81°
Average low63°
Average precipitation0.08 in
Chance of precipitation32%
Record high93° (2011)
Record low49° (1967)
Thu, 0380° / 63°0.11
80 °
Grandview Heights, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.11 in
Chance of precipitation28%
Record high94° (2011)
Record low50° (1967)
Fri, 0480° / 62°0.06
80 °
Grandview Heights, Friday, 4 September
Climate normal for this date — 60-year average.
Average high80°
Average low62°
Average precipitation0.06 in
Chance of precipitation25%
Record high92° (2008)
Record low47° (1997)
Sat, 0579° / 61°0.08
79 °
Grandview Heights, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high79°
Average low61°
Average precipitation0.08 in
Chance of precipitation27%
Record high91° (2023)
Record low49° (1997)
Sun, 0679° / 61°0.03
79 °
Grandview Heights, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high79°
Average low61°
Average precipitation0.03 in
Chance of precipitation20%
Record high94° (2007)
Record low46° (1988)
Mon, 0779° / 61°0.04
79 °
Grandview Heights, Monday, 7 September
Climate normal for this date — 60-year average.
Average high79°
Average low61°
Average precipitation0.04 in
Chance of precipitation25%
Record high92° (2010)
Record low46° (1962)
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 Grandview Heights, OH 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 Grandview Heights, OH 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.