Monthly outlook for Harper Woods, MI: average high 81.4°, average low 65.6°. That is 1.2° above the climate normal for August. Precipitation is expected on 3 days (about 1.0 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 10 August (91°), the coolest 21 August (59.6°).
81.4°/65.6°
Average high / low
+1.2°
Above normal
3 / 5
Wet days / normal
1.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
82°
79.8°
+1.2°
18 August – 27 August
80.4°
78.7°
+0.9°
28 August – 6 September
at normal
77.5°
—
August records over 66 years
97.7°17 August 1988All-time high
45.9°22 August 2024All-time low
Climate normals and records are computed from the nearest reference point — Detroit (10 mi).
Sun, 0989° / 68°0
89 °
Harper Woods, Sunday, 9 August
Clear. High 89°, low 68°.
Pressure30.03 inHg
Wind8.3 mph S
Humidity45%
Visibility6.2 mi
Dew point56°
Mon, 1091° / 71°0.28
91 °
Harper Woods, Monday, 10 August
Rain. High 91°, low 71°.
Pressure29.91 inHg
Wind9.2 mph W
Humidity82%
Visibility6.2 mi
Dew point71°
Tue, 1179° / 70°0.63
79 °
Harper Woods, Tuesday, 11 August
Heavy rain. High 79°, low 70°.
Pressure29.85 inHg
Wind9.2 mph S
Humidity72%
Visibility6.2 mi
Dew point68°
Wed, 1285° / 65°0.01
85 °
Harper Woods, Wednesday, 12 August
Light rain. High 85°, low 65°.
Pressure29.77 inHg
Wind4.5 mph N
Humidity60%
Visibility6.2 mi
Dew point63°
Thu, 1374° / 61°0
74 °
Harper Woods, Thursday, 13 August
Overcast. High 74°, low 61°.
Pressure30.00 inHg
Wind13 mph N
Humidity36%
Visibility—
Dew point42°
Fri, 1478° / 62°0
78 °
Harper Woods, Friday, 14 August
Clear. High 78°, low 62°.
Pressure30.06 inHg
Wind6.7 mph W
Humidity33%
Visibility—
Dew point45°
Sat, 1576° / 63°0
76 °
Harper Woods, Saturday, 15 August
Overcast. High 76°, low 63°.
Pressure30.27 inHg
Wind7.9 mph NE
Humidity42%
Visibility—
Dew point48°
Sun, 1679° / 65°0
79 °
Harper Woods, Sunday, 16 August
Partly cloudy. High 79°, low 65°.
Pressure30.15 inHg
Wind8.7 mph SE
Humidity40%
Visibility—
Dew point51°
Mon, 1782° / 68°0
82 °
Harper Woods, Monday, 17 August
Overcast. High 82°, low 68°.
Pressure30.00 inHg
Wind6.8 mph S
Humidity46%
Visibility—
Dew point58°
Tue, 1886° / 69°0
86 °
Harper Woods, Tuesday, 18 August
Mostly clear. High 86°, low 69°.
Pressure29.97 inHg
Wind10.4 mph S
Humidity42%
Visibility—
Dew point58°
Wed, 1978° / 67°0.04
78 °
Harper Woods, Wednesday, 19 August
Light rain. High 78°, low 67°.
Pressure29.80 inHg
Wind16.6 mph NW
Humidity75%
Visibility—
Dew point65°
Thu, 2078° / 63°0
78 °
Harper Woods, Thursday, 20 August
Overcast. High 78°, low 63°.
Pressure29.88 inHg
Wind14.8 mph NW
Humidity45%
Visibility—
Dew point50°
Fri, 2175° / 60°0
75 °
Harper Woods, Friday, 21 August
Overcast. High 75°, low 60°.
Pressure30.03 inHg
Wind12 mph NE
Humidity28%
Visibility—
Dew point38°
Sat, 2277° / 60°0
77 °
Harper Woods, Saturday, 22 August
Light rain. High 77°, low 60°.
Pressure29.97 inHg
Wind11.1 mph S
Humidity37%
Visibility—
Dew point47°
Sun, 2389° / 68°0
89 °
Harper Woods, Sunday, 23 August
Clear. High 89°, low 68°.
Pressure29.77 inHg
Wind19.3 mph SW
Humidity38%
Visibility—
Dew point57°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2479° / 63°0.07
79 °
Harper Woods, Monday, 24 August
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.07 in
Chance of precipitation27%
Record high92° (1968)
Record low50° (1971)
Tue, 2579° / 63°0.06
79 °
Harper Woods, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.06 in
Chance of precipitation18%
Record high92° (2021)
Record low50° (2017)
Wed, 2680° / 64°0.13
80 °
Harper Woods, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.13 in
Chance of precipitation33%
Record high92° (2024)
Record low49° (2017)
Thu, 2780° / 64°0.13
80 °
Harper Woods, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.13 in
Chance of precipitation33%
Record high94° (1973)
Record low51° (2025)
Fri, 2879° / 64°0.14
79 °
Harper Woods, Friday, 28 August
Climate normal for this date — 60-year average.
Average high79°
Average low64°
Average precipitation0.14 in
Chance of precipitation40%
Record high94° (1973)
Record low48° (1986)
Sat, 2978° / 63°0.1
78 °
Harper Woods, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high78°
Average low63°
Average precipitation0.1 in
Chance of precipitation30%
Record high91° (1973)
Record low47° (1986)
Sun, 3078° / 62°0.07
78 °
Harper Woods, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.07 in
Chance of precipitation28%
Record high91° (1991)
Record low47° (2025)
Mon, 3177° / 62°0.06
77 °
Harper Woods, Monday, 31 August
Climate normal for this date — 60-year average.
Average high77°
Average low62°
Average precipitation0.06 in
Chance of precipitation17%
Record high92° (2012)
Record low47° (2023)
Tue, 0177° / 62°0.08
77 °
Harper Woods, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high77°
Average low62°
Average precipitation0.08 in
Chance of precipitation23%
Record high91° (2010)
Record low48° (1967)
Wed, 0278° / 62°0.06
78 °
Harper Woods, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.06 in
Chance of precipitation38%
Record high94° (2011)
Record low48° (1994)
Thu, 0378° / 61°0.06
78 °
Harper Woods, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high78°
Average low61°
Average precipitation0.06 in
Chance of precipitation23%
Record high93° (2011)
Record low47° (2024)
Fri, 0477° / 61°0.06
77 °
Harper Woods, Friday, 4 September
Climate normal for this date — 60-year average.
Average high77°
Average low61°
Average precipitation0.06 in
Chance of precipitation30%
Record high91° (2023)
Record low48° (1974)
Sat, 0577° / 61°0.04
77 °
Harper Woods, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high77°
Average low61°
Average precipitation0.04 in
Chance of precipitation15%
Record high90° (2014)
Record low48° (1997)
Sun, 0676° / 61°0.06
76 °
Harper Woods, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high76°
Average low61°
Average precipitation0.06 in
Chance of precipitation22%
Record high91° (1998)
Record low47° (1988)
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 Harper Woods, MI 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 Harper Woods, MI 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.