Weather in Mackinaw City, Michigan for September 2026
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So far, September 2026 in Mackinaw City is slightly warmer than the historical average by 1.7 °F.
Expect cooler weather in the next days in Mackinaw City with the forecast suggesting a temperature of 14.4 °F, lower than the historical average.
In general, the average temperature in Mackinaw City at the beginning of September is 19 °F. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 16 °F by the end of September.
Mackinaw City experiences moderate rainfall in September, with an average of 7 rainy days and a total precipitation of 168.1 mm.
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Mackinaw City Weather September
Temperatures trend during September in Mackinaw City
September weather in Mackinaw City day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Fog | 20° /15° | 0 mm | 2 | |
| Sept. 2 | Fog | 20° /15° | 4.6 mm | 1 | |
| Sept. 3 |  Moderate or heavy rain shower | 21° /13° | 24.8 mm | 3 | |
| Sept. 4 |  Light rain shower | 17° /12° | 9.7 mm | 2 | |
| Sept. 5 | Moderate or heavy rain shower | 19° /13° | 6.1 mm | 4 | |
| Sept. 6 |  Overcast | 18° /11° | 0 mm | 4 | |
| Sept. 7 |  Light rain | 18° /12° | 2.2 mm | 4 | |
| Sept. 8 |  Cloudy | 20° /14° | 0.1 mm | 4 | |
| Sept. 9 | Overcast | 21° /17° | 0.6 mm | 3 | |
| Sept. 10 | Overcast | 18° /14° | 0 mm | 4 | |
| Sept. 11 | Mist | 19° /13° | 0 mm | 6 | |
| Sept. 12 | Fog | 19° /14° | 0.3 mm | 2 | |
| Sept. 13 | Fog | 17° /13° | 0.4 mm | 2 | |
| Sept. 14 | Fog | 16° /13° | 0 mm | 5 | |
| Sept. 15 | Cloudy | 18° /13° | 5.4 mm | 3 | |
| Sept. 16 | Mist | 17° /13° | 0 mm | 2 | |
| Sept. 17 | Fog | 18° /13° | 0.2 mm | 3 | |
| Sept. 18 | Fog | 16° /12° | 0 mm | 1 | |
| Sept. 19 | Cloudy | 15° /11° | 0 mm | 4 | |
| Sept. 20 |  Sunny | 15° /12° | 0.1 mm | 5.1 | |
| Sept. 21 | Overcast | 12° /9° | 0 mm | 4.3 | |
| Sept. 22 | Sunny | 13° /11° | 0 mm | 4.7 | |
| Sept. 23 | Sunny | 14° /12° | 0 mm | 4.6 | |
| Sept. 24 | Sunny | 14° /11° | 0.2 mm | 4 | |
| Sept. 25 | Sunny | 17° /13° | 0 mm | 5 | |
| Sept. 26 | Sunny | 19° /13° | 0 mm | 5 | |
| Sept. 27 | Sunny | 17° /15° | 0 mm | 5 | |
| Sept. 28 | Sunny | 21° /13° | 5.1 mm | 5 | |
| Sept. 29 | Patchy rain possible | 12° /8° | 6.9 mm | 3 | |
| Sept. 30 | Overcast | 12° /8° | 8.8 mm | 3 | |
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Mackinaw City in September - FAQ
What are the expected maximum and minimum temperatures in Mackinaw City during September?
How much rainfall should be expected in Mackinaw City during September?
What are the typical wind conditions in Mackinaw City during September?
September rainfall patterns in Mackinaw City
UV exposure in Mackinaw City during September
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Where is Mackinaw City?Get accurate weather forecasts for Mackinaw City, located at latitude 45.778 and longitude -84.73. Stay updated with localized weather information tailored for Mackinaw City.