10-day forecast for Fort Mackinac, MI: 57° to 77°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.
77°
Best day: Sunday, August 9
65° · 0.22 in
Worst day: Sunday, August 16
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1075° / 65°0.22
Morning65°feels 66°
Afternoon74°feels 73°
Evening70°feels 70°
Overnight67°feels 67°
75 °
Fort Mackinac, Monday, 10 August
Rain. High 75°, low 65°.
Pressure29.85 inHg
Wind5 mph N
Humidity72%
Visibility6.2 mi
Dew point61°
Tue, 1169° / 61°0.21
Morning65°feels 64°
Afternoon67°feels 66°
Evening66°feels 66°
Overnight64°feels 63°
69 °
Fort Mackinac, Tuesday, 11 August
Rain. High 69°, low 61°.
Pressure29.94 inHg
Wind2.2 mph SW
Humidity58%
Visibility6.2 mi
Dew point54°
Wed, 1273° / 63°0.09
Morning64°feels 63°
Afternoon70°feels 70°
Evening68°feels 67°
Overnight64°feels 64°
73 °
Fort Mackinac, Wednesday, 12 August
Light rain. High 73°, low 63°.
Pressure29.80 inHg
Wind6.4 mph N
Humidity75%
Visibility6.2 mi
Dew point60°
Thu, 1368° / 58°0
Morning58°feels 57°
Afternoon66°feels 65°
Evening63°feels 62°
Overnight61°feels 60°
68 °
Fort Mackinac, Thursday, 13 August
Partly cloudy. High 68°, low 58°.
Pressure30.00 inHg
Wind9.7 mph NW
Humidity57%
Visibility6.2 mi
Dew point48°
Fri, 1470° / 57°0
Morning61°feels 60°
Afternoon69°feels 68°
Evening67°feels 66°
Overnight61°feels 60°
70 °
Fort Mackinac, Friday, 14 August
Clear. High 70°, low 57°.
Pressure30.18 inHg
Wind10.8 mph N
Humidity50%
Visibility—
Dew point48°
Sat, 1566° / 61°0
Morning64°feels 63°
Afternoon66°feels 65°
Evening66°feels 65°
Overnight65°feels 65°
66 °
Fort Mackinac, Saturday, 15 August
Overcast. High 66°, low 61°.
Pressure30.33 inHg
Wind13.6 mph SE
Humidity66%
Visibility—
Dew point54°
Sun, 1665° / 58°0.22
Morning61°feels 61°
Afternoon64°feels 63°
Evening64°feels 64°
Overnight63°feels 63°
65 °
Fort Mackinac, Sunday, 16 August
Rain. High 65°, low 58°.
Pressure30.06 inHg
Wind13.8 mph S
Humidity77%
Visibility—
Dew point55°
Mon, 1773° / 59°0
Morning62°feels 62°
Afternoon70°feels 69°
Evening69°feels 68°
Overnight64°feels 64°
73 °
Fort Mackinac, Monday, 17 August
Clear. High 73°, low 59°.
Pressure30.00 inHg
Wind13.4 mph W
Humidity66%
Visibility—
Dew point56°
Tue, 1873° / 63°0.01
Morning66°feels 66°
Afternoon71°feels 71°
Evening71°feels 71°
Overnight68°feels 68°
73 °
Fort Mackinac, Tuesday, 18 August
Light rain. High 73°, low 63°.
Pressure29.83 inHg
Wind15 mph SW
Humidity64%
Visibility—
Dew point57°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Fort Mackinac, MI around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.