Monthly outlook for Martindale Beach, MI: average high 80.1°, average low 60.2°. That is 1.4° above the climate normal for August. Precipitation is expected on 4 days (about 0.9 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 23 August (89.2°), the coolest 22 August (51°).
80.1°/60.2°
Average high / low
+1.4°
Above normal
4 / 5
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
81.2°
78°
+1.8°
19 August – 28 August
78.3°
77°
+0.7°
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 (5 mi).
Mon, 1088° / 72°0.15
88 °
Martindale Beach, Monday, 10 August
Rain. High 88°, low 72°.
Pressure29.91 inHg
Wind11.2 mph W
Humidity90%
Visibility6.2 mi
Dew point71°
Tue, 1181° / 66°0.56
81 °
Martindale Beach, Tuesday, 11 August
Heavy rain. High 81°, low 66°.
Pressure29.85 inHg
Wind11.3 mph S
Humidity65%
Visibility6.2 mi
Dew point67°
Wed, 1284° / 62°0.04
84 °
Martindale Beach, Wednesday, 12 August
Light rain. High 84°, low 62°.
Pressure29.77 inHg
Wind6.6 mph NW
Humidity65%
Visibility6.2 mi
Dew point65°
Thu, 1371° / 54°0
71 °
Martindale Beach, Thursday, 13 August
Overcast. High 71°, low 54°.
Pressure30.00 inHg
Wind13.8 mph NW
Humidity43%
Visibility—
Dew point46°
Fri, 1478° / 57°0
78 °
Martindale Beach, Friday, 14 August
Clear. High 78°, low 57°.
Pressure30.06 inHg
Wind10.4 mph N
Humidity40%
Visibility—
Dew point48°
Sat, 1576° / 55°0
76 °
Martindale Beach, Saturday, 15 August
Overcast. High 76°, low 55°.
Pressure30.27 inHg
Wind7.4 mph NE
Humidity41%
Visibility—
Dew point49°
Sun, 1679° / 56°0
79 °
Martindale Beach, Sunday, 16 August
Overcast. High 79°, low 56°.
Pressure30.15 inHg
Wind8.4 mph S
Humidity43%
Visibility—
Dew point51°
Mon, 1782° / 63°0
82 °
Martindale Beach, Monday, 17 August
Overcast. High 82°, low 63°.
Pressure30.00 inHg
Wind10.3 mph SW
Humidity44%
Visibility—
Dew point55°
Tue, 1885° / 66°0.01
85 °
Martindale Beach, Tuesday, 18 August
Light rain. High 85°, low 66°.
Pressure29.97 inHg
Wind12.1 mph S
Humidity46%
Visibility—
Dew point59°
Wed, 1974° / 63°0.1
74 °
Martindale Beach, Wednesday, 19 August
Light rain. High 74°, low 63°.
Pressure29.77 inHg
Wind20.5 mph W
Humidity76%
Visibility—
Dew point65°
Thu, 2075° / 58°0
75 °
Martindale Beach, Thursday, 20 August
Overcast. High 75°, low 58°.
Pressure29.85 inHg
Wind17.5 mph NW
Humidity46%
Visibility—
Dew point50°
Fri, 2173° / 53°0
73 °
Martindale Beach, Friday, 21 August
Overcast. High 73°, low 53°.
Pressure30.06 inHg
Wind13.4 mph N
Humidity37%
Visibility—
Dew point44°
Sat, 2277° / 51°0.01
77 °
Martindale Beach, Saturday, 22 August
Light rain. High 77°, low 51°.
Pressure29.97 inHg
Wind11.6 mph S
Humidity36%
Visibility—
Dew point45°
Sun, 2389° / 64°0
89 °
Martindale Beach, Sunday, 23 August
Clear. High 89°, low 64°.
Pressure29.77 inHg
Wind23.7 mph W
Humidity37%
Visibility—
Dew point57°
Mon, 2481° / 58°0
81 °
Martindale Beach, Monday, 24 August
Partly cloudy. High 81°, low 58°.
Pressure30.00 inHg
Wind10.8 mph NW
Humidity36%
Visibility—
Dew point49°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2577° / 65°0.08
77 °
Martindale Beach, 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 °
Martindale Beach, 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 °
Martindale Beach, 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 °
Martindale Beach, 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 °
Martindale Beach, 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 °
Martindale Beach, 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 °
Martindale Beach, 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 °
Martindale Beach, 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 °
Martindale Beach, 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 °
Martindale Beach, 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 °
Martindale Beach, 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 °
Martindale Beach, 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 °
Martindale Beach, 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 °
Martindale Beach, 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 Martindale Beach, 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 Martindale Beach, 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.