Monthly outlook for Anchor Bay Harbor, MI: average high 81.4°, average low 65.1°. That is 2.2° above the climate normal for August. Precipitation is expected on 4 days (about 0.5 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 23 August (90.5°), the coolest 15 August (56°).
81.4°/65.1°
Average high / low
+2.2°
Above normal
4 / 5
Wet days / normal
0.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
79.3°
78°
+0.7°
19 August – 28 August
85.1°
77°
+4.5°
29 August – 7 September
at normal
75.7°
—
August records over 66 years
96.1°8 August 2001All-time high
49.6°28 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Algonac (14 mi).
Mon, 1087° / 73°0.28
87 °
Anchor Bay Harbor, Monday, 10 August
Rain. High 87°, low 73°.
Pressure29.91 inHg
Wind10.3 mph W
Humidity84%
Visibility6.2 mi
Dew point69°
Tue, 1178° / 66°0.02
78 °
Anchor Bay Harbor, Tuesday, 11 August
Light rain. High 78°, low 66°.
Pressure29.94 inHg
Wind5.9 mph SE
Humidity50%
Visibility6.2 mi
Dew point56°
Wed, 1285° / 65°0.04
85 °
Anchor Bay Harbor, Wednesday, 12 August
Light rain. High 85°, low 65°.
Pressure29.77 inHg
Wind6.6 mph NW
Humidity56%
Visibility6.2 mi
Dew point62°
Thu, 1375° / 59°0
75 °
Anchor Bay Harbor, Thursday, 13 August
Clear. High 75°, low 59°.
Pressure29.97 inHg
Wind14.9 mph NW
Humidity38%
Visibility—
Dew point44°
Fri, 1475° / 58°0
75 °
Anchor Bay Harbor, Friday, 14 August
Clear. High 75°, low 58°.
Pressure30.12 inHg
Wind15.5 mph NE
Humidity35%
Visibility—
Dew point42°
Sat, 1573° / 56°0
73 °
Anchor Bay Harbor, Saturday, 15 August
Overcast. High 73°, low 56°.
Pressure30.30 inHg
Wind8 mph E
Humidity47%
Visibility—
Dew point47°
Sun, 1673° / 64°0
73 °
Anchor Bay Harbor, Sunday, 16 August
Overcast. High 73°, low 64°.
Pressure30.15 inHg
Wind11.7 mph S
Humidity49%
Visibility—
Dew point50°
Mon, 1779° / 66°0
79 °
Anchor Bay Harbor, Monday, 17 August
Overcast. High 79°, low 66°.
Pressure30.00 inHg
Wind14.9 mph NE
Humidity49%
Visibility—
Dew point57°
Tue, 1880° / 62°0
80 °
Anchor Bay Harbor, Tuesday, 18 August
Partly cloudy. High 80°, low 62°.
Pressure30.06 inHg
Wind11.6 mph S
Humidity47%
Visibility—
Dew point54°
Wed, 1983° / 68°0
83 °
Anchor Bay Harbor, Wednesday, 19 August
Overcast. High 83°, low 68°.
Pressure30.00 inHg
Wind14.8 mph S
Humidity52%
Visibility—
Dew point61°
Thu, 2089° / 72°0.06
89 °
Anchor Bay Harbor, Thursday, 20 August
Light rain. High 89°, low 72°.
Pressure29.83 inHg
Wind16.9 mph SW
Humidity59%
Visibility—
Dew point67°
Fri, 2189° / 67°0
89 °
Anchor Bay Harbor, Friday, 21 August
Mostly clear. High 89°, low 67°.
Pressure29.85 inHg
Wind16.7 mph NE
Humidity44%
Visibility—
Dew point62°
Sat, 2285° / 66°0
85 °
Anchor Bay Harbor, Saturday, 22 August
Clear. High 85°, low 66°.
Pressure29.97 inHg
Wind12.6 mph S
Humidity50%
Visibility—
Dew point58°
Sun, 2391° / 69°0.06
91 °
Anchor Bay Harbor, Sunday, 23 August
Light rain. High 91°, low 69°.
Pressure29.83 inHg
Wind16.3 mph N
Humidity56%
Visibility—
Dew point68°
Mon, 2475° / 67°0.02
75 °
Anchor Bay Harbor, Monday, 24 August
Light rain. High 75°, low 67°.
Pressure30.06 inHg
Wind10.8 mph NE
Humidity83%
Visibility—
Dew point65°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2577° / 65°0.08
77 °
Anchor Bay Harbor, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high77°
Average low65°
Average precipitation0.08 in
Chance of precipitation18%
Record high87° (1969)
Record low54° (2017)
Wed, 2678° / 65°0.12
78 °
Anchor Bay Harbor, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high78°
Average low65°
Average precipitation0.12 in
Chance of precipitation33%
Record high87° (2021)
Record low53° (2017)
Thu, 2778° / 66°0.13
78 °
Anchor Bay Harbor, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high78°
Average low66°
Average precipitation0.13 in
Chance of precipitation40%
Record high92° (1973)
Record low53° (2025)
Fri, 2877° / 66°0.15
77 °
Anchor Bay Harbor, Friday, 28 August
Climate normal for this date — 60-year average.
Average high77°
Average low66°
Average precipitation0.15 in
Chance of precipitation40%
Record high93° (1973)
Record low50° (1986)
Sat, 2977° / 65°0.11
77 °
Anchor Bay Harbor, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high77°
Average low65°
Average precipitation0.11 in
Chance of precipitation32%
Record high89° (1973)
Record low51° (1986)
Sun, 3076° / 64°0.08
76 °
Anchor Bay Harbor, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high76°
Average low64°
Average precipitation0.08 in
Chance of precipitation27%
Record high89° (1991)
Record low51° (1965)
Mon, 3176° / 64°0.07
76 °
Anchor Bay Harbor, Monday, 31 August
Climate normal for this date — 60-year average.
Average high76°
Average low64°
Average precipitation0.07 in
Chance of precipitation23%
Record high90° (2012)
Record low51° (2023)
Tue, 0176° / 63°0.07
76 °
Anchor Bay Harbor, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high76°
Average low63°
Average precipitation0.07 in
Chance of precipitation23%
Record high87° (1969)
Record low50° (2009)
Wed, 0276° / 64°0.07
76 °
Anchor Bay Harbor, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high76°
Average low64°
Average precipitation0.07 in
Chance of precipitation38%
Record high89° (2011)
Record low52° (1965)
Thu, 0376° / 63°0.09
76 °
Anchor Bay Harbor, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high76°
Average low63°
Average precipitation0.09 in
Chance of precipitation30%
Record high89° (2011)
Record low51° (2024)
Fri, 0476° / 63°0.1
76 °
Anchor Bay Harbor, Friday, 4 September
Climate normal for this date — 60-year average.
Average high76°
Average low63°
Average precipitation0.1 in
Chance of precipitation32%
Record high89° (1973)
Record low53° (1997)
Sat, 0575° / 63°0.04
75 °
Anchor Bay Harbor, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high75°
Average low63°
Average precipitation0.04 in
Chance of precipitation18%
Record high87° (2018)
Record low52° (1974)
Sun, 0675° / 63°0.06
75 °
Anchor Bay Harbor, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high75°
Average low63°
Average precipitation0.06 in
Chance of precipitation30%
Record high89° (1998)
Record low50° (1984)
Mon, 0775° / 63°0.11
75 °
Anchor Bay Harbor, Monday, 7 September
Climate normal for this date — 60-year average.
Average high75°
Average low63°
Average precipitation0.11 in
Chance of precipitation37%
Record high86° (2002)
Record low49° (2025)
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 Anchor Bay Harbor, 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 Anchor Bay Harbor, 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.