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Islands: Mackinac/Bois Blanc
 Details for Islands: Mackinac/Bois Blanc Frost Advisory

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Frost Advisory FROST ADVISORY - Islands: Mackinac/Bois Blanc

Updated: @ 23-Sep-2026 1:50am - next update at 1:55am  
Summary / Temperature Wind Rain Outlook
Clear Clear
Currently: 49.9°F, Max: 49.9°F, Min: 45.6°F 49.9°F
Warmer 2.9°F than last hour.

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Feels like: 50°F

24-hr difference
-3°FColder 3.0°F than yesterday at this time.
  Today Yesterday
High: 49.9°F
1:48am 		61.1°F
3:32pm
Low: 45.6°F
12:00am 		44.7°F
10:58pm
Wind from SW SW
0.1
Gust:
 1 mph
0 Bft - Calm
Today: 2.3 mph 12:40am
Gust Month: 10.0 mph September 15
Rain Today: 0 in
Rain Rate (/hr): 0 in
Rain Yesterday: 0 in
Storm Rain: 0 in
This Month: 1.03 in
Season Total: 24.12 in
5 rain days in September.
Wednesday

Wednesday: Sunny
Sunny
Humidity & Barometer Almanac Moon
Humidity: 95 %  
Dew Point: 48.5°F Increased 3.0°F since last hour.
Barometer: 30.519 inHg  
Baro Trend: Steady
Sunrise: 7:25am
Sunset: 7:32pm
Moonset: 3:48am
Moonrise: 6:23pm
Waxing Gibbous
Waxing Gibbous, Moon at 11 days in cycle
87%
Illuminated
UV Index Forecast UV Index Forecast
23-Sep-2026
4.4     Medium 
24-Sep-2026
4.3     Medium 
 NWS Weather Forecast  - Outlook: Overnight & Wednesday
Overnight

Overnight: Clear
Clear

Lo 45 °F		 NWS forecast: Clear. Low around 45, with temperatures rising to around 48 overnight. East wind around 10 mph.
 
Wednesday

Wednesday: Sunny
Sunny

Hi 62 °F		 NWS forecast: Sunny, with a high near 62. East wind 10 to 15 mph.
  3 Day Forecast
Wednesday
Night
Wednesday Night: Mostly Clear
Mostly Clear
Thursday

Thursday: Sunny
Sunny
Thursday
Night
Thursday Night: Partly Cloudy
Partly Cloudy
Friday

Friday: Sunny
Sunny
Friday
Night
Friday Night: Mostly Clear
Mostly Clear
Saturday

Saturday: Mostly Sunny
Mostly Sunny
Lo 46 °FHi 65 °FLo 46 °FHi 66 °FLo 45 °FHi 67 °F