Monthly outlook for Rosemary Beach, MI: average high 74.7°, average low 64.8°. That is 1.9° below the climate normal for August. Precipitation is expected on 6 days (about 5.8 inches), against a normal of 6 days and 1.9 inches. The warmest day looks like 10 August (86.4°), the coolest 24 August (61.6°).
74.7°/64.8°
Average high / low
−1.9°
Below normal
6 / 6
Wet days / normal
5.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
76.3°
78.1°
-1°
19 August – 28 August
72°
78.1°
-3.4°
29 August – 7 September
at normal
76.6°
—
August records over 66 years
94.1°24 August 2023All-time high
50.9°29 August 2025All-time low
Climate normals and records are computed from the nearest reference point — Bridgman (3 mi).
Mon, 1086° / 71°2.11
86 °
Rosemary Beach, Monday, 10 August
Heavy rain. High 86°, low 71°.
Pressure29.91 inHg
Wind9.4 mph W
Humidity86%
Visibility6.2 mi
Dew point72°
Tue, 1181° / 67°2.63
81 °
Rosemary Beach, Tuesday, 11 August
Heavy rain. High 81°, low 67°.
Pressure29.91 inHg
Wind13.5 mph SE
Humidity78%
Visibility6.2 mi
Dew point71°
Wed, 1274° / 67°0.03
74 °
Rosemary Beach, Wednesday, 12 August
Light rain. High 74°, low 67°.
Pressure29.83 inHg
Wind8.6 mph NW
Humidity80%
Visibility6.2 mi
Dew point66°
Thu, 1373° / 64°0.02
73 °
Rosemary Beach, Thursday, 13 August
Light rain. High 73°, low 64°.
Pressure29.97 inHg
Wind8.1 mph E
Humidity70%
Visibility—
Dew point61°
Fri, 1474° / 62°0
74 °
Rosemary Beach, Friday, 14 August
Partly cloudy. High 74°, low 62°.
Pressure30.15 inHg
Wind14.2 mph E
Humidity57%
Visibility—
Dew point55°
Sat, 1572° / 62°0.02
72 °
Rosemary Beach, Saturday, 15 August
Light rain. High 72°, low 62°.
Pressure30.27 inHg
Wind14.7 mph SE
Humidity61%
Visibility—
Dew point56°
Sun, 1672° / 65°0.19
72 °
Rosemary Beach, Sunday, 16 August
Light rain. High 72°, low 65°.
Pressure29.97 inHg
Wind17.7 mph N
Humidity86%
Visibility—
Dew point65°
Mon, 1771° / 66°0
71 °
Rosemary Beach, Monday, 17 August
Overcast. High 71°, low 66°.
Pressure30.09 inHg
Wind14.2 mph N
Humidity78%
Visibility—
Dew point62°
Tue, 1873° / 62°0
73 °
Rosemary Beach, Tuesday, 18 August
Overcast. High 73°, low 62°.
Pressure29.91 inHg
Wind11.5 mph S
Humidity75%
Visibility—
Dew point62°
Wed, 1971° / 68°0.14
71 °
Rosemary Beach, Wednesday, 19 August
Light rain. High 71°, low 68°.
Pressure29.80 inHg
Wind18.9 mph N
Humidity78%
Visibility—
Dew point63°
Thu, 2068° / 62°0
68 °
Rosemary Beach, Thursday, 20 August
Overcast. High 68°, low 62°.
Pressure29.97 inHg
Wind13.9 mph NE
Humidity72%
Visibility—
Dew point57°
Fri, 2176° / 63°0
76 °
Rosemary Beach, Friday, 21 August
Light rain. High 76°, low 63°.
Pressure29.85 inHg
Wind15.7 mph S
Humidity77%
Visibility—
Dew point62°
Sat, 2274° / 68°0.05
74 °
Rosemary Beach, Saturday, 22 August
Light rain. High 74°, low 68°.
Pressure29.80 inHg
Wind19.2 mph N
Humidity82%
Visibility—
Dew point67°
Sun, 2369° / 67°0
69 °
Rosemary Beach, Sunday, 23 August
Clear. High 69°, low 67°.
Pressure30.15 inHg
Wind21.7 mph N
Humidity64%
Visibility—
Dew point56°
Mon, 2473° / 62°0
73 °
Rosemary Beach, Monday, 24 August
Clear. High 73°, low 62°.
Pressure30.21 inHg
Wind11 mph S
Humidity63%
Visibility—
Dew point57°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2578° / 67°0.11
78 °
Rosemary Beach, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high78°
Average low67°
Average precipitation0.11 in
Chance of precipitation30%
Record high89° (2024)
Record low54° (2017)
Wed, 2679° / 67°0.14
79 °
Rosemary Beach, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high79°
Average low67°
Average precipitation0.14 in
Chance of precipitation35%
Record high94° (2024)
Record low55° (2017)
Thu, 2779° / 68°0.14
79 °
Rosemary Beach, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high79°
Average low68°
Average precipitation0.14 in
Chance of precipitation35%
Record high92° (2024)
Record low55° (2025)
Fri, 2878° / 67°0.16
78 °
Rosemary Beach, Friday, 28 August
Climate normal for this date — 60-year average.
Average high78°
Average low67°
Average precipitation0.16 in
Chance of precipitation42%
Record high90° (2021)
Record low52° (1986)
Sat, 2978° / 67°0.11
78 °
Rosemary Beach, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high78°
Average low67°
Average precipitation0.11 in
Chance of precipitation33%
Record high90° (2022)
Record low51° (2025)
Sun, 3077° / 66°0.07
77 °
Rosemary Beach, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high77°
Average low66°
Average precipitation0.07 in
Chance of precipitation28%
Record high89° (1995)
Record low55° (2025)
Mon, 3177° / 65°0.09
77 °
Rosemary Beach, Monday, 31 August
Climate normal for this date — 60-year average.
Average high77°
Average low65°
Average precipitation0.09 in
Chance of precipitation23%
Record high87° (1969)
Record low53° (2025)
Tue, 0177° / 65°0.15
77 °
Rosemary Beach, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high77°
Average low65°
Average precipitation0.15 in
Chance of precipitation28%
Record high89° (2011)
Record low53° (2017)
Wed, 0277° / 65°0.07
77 °
Rosemary Beach, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high77°
Average low65°
Average precipitation0.07 in
Chance of precipitation27%
Record high88° (2008)
Record low51° (2017)
Thu, 0377° / 65°0.07
77 °
Rosemary Beach, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high77°
Average low65°
Average precipitation0.07 in
Chance of precipitation27%
Record high88° (2023)
Record low53° (1974)
Fri, 0476° / 65°0.1
76 °
Rosemary Beach, Friday, 4 September
Climate normal for this date — 60-year average.
Average high76°
Average low65°
Average precipitation0.1 in
Chance of precipitation30%
Record high88° (1999)
Record low54° (1997)
Sat, 0576° / 65°0.08
76 °
Rosemary Beach, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high76°
Average low65°
Average precipitation0.08 in
Chance of precipitation30%
Record high89° (2023)
Record low54° (2019)
Sun, 0676° / 64°0.1
76 °
Rosemary Beach, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high76°
Average low64°
Average precipitation0.1 in
Chance of precipitation37%
Record high89° (1990)
Record low52° (1962)
Mon, 0776° / 64°0.09
76 °
Rosemary Beach, Monday, 7 September
Climate normal for this date — 60-year average.
Average high76°
Average low64°
Average precipitation0.09 in
Chance of precipitation40%
Record high90° (1960)
Record low51° (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 Rosemary 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 Rosemary 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.