Forecast Details for Mackinac Island, MI

Recent Locations: Manhattan Beach, CA Astoria, NY Mackinac Island, MI

Current Alerts for Mackinac Island, MI: Winter Weather Advisory

Tonight: Mostly cloudy, with a steady temperature around 27. Breezy, with an east wind 10 to 20 mph.

Thursday: Snow and sleet, possibly mixed with freezing rain before 2pm, then freezing rain, possibly mixed with sleet. The sleet could be heavy at times. High near 34. Windy, with an east wind 25 to 30 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New ice accumulation of 0.1 to 0.3 of an inch possible. New snow and sleet accumulation of less than a half inch possible.

Thursday Night: Rain and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms after 2am. Temperature rising to around 42 by 5am. Windy, with an east wind 20 to 30 mph decreasing to 10 to 20 mph after midnight. Winds could gust as high as 35 mph. Chance of precipitation is 80%.

Friday: A 30 percent chance of showers before 8am. Mostly cloudy, with a high near 41. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.

Friday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 32. Breezy, with a north wind 10 to 20 mph becoming east after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 60%.

Saturday: Showers. High near 41. Breezy. Chance of precipitation is 90%.

Saturday Night: Showers likely, mainly before 8pm. Mostly cloudy, with a low around 31. Breezy. Chance of precipitation is 60%.

Sunday: Mostly cloudy, with a high near 36. Breezy.

Sunday Night: Mostly cloudy, with a low around 27.

Monday: Mostly cloudy, with a high near 35.

Monday Night: Mostly cloudy, with a low around 21.

Tuesday: Mostly sunny, with a high near 31.

Tuesday Night: Partly cloudy, with a low around 24.

Wednesday: Mostly sunny, with a high near 40.

Want more detail? Get the Complete 7 Day and Night Detailed Forecast!

Current U.S. National Radar--Current

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National Weather Forecast--Current

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National Weather Forecast for Tomorrow

Tomorrow National Weather Forecast and Tomorrow National Weather Map are show below.

North America Water Vapor (Moisture)

This map shows recent moisture content over North America. Bright and colored areas show high moisture (ie, clouds); brown indicates very little moisture present; black indicates no moisture.

Weather Topic: What are Shelf Clouds?

Home - Education - Cloud Types - Shelf Clouds

Shelf Clouds Next Topic: Sleet

A shelf cloud is similar to a wall cloud, but forms at the front of a storm cloud, instead of at the rear, where wall clouds form.

A shelf cloud is caused by a series of events set into motion by the advancing storm; first, cool air settles along the ground where precipitation has just fallen. As the cool air is brought in, the warmer air is displaced, and rises above it, because it is less dense. When the warmer air reaches the bottom of the storm cloud, it begins to cool again, and the resulting condensation is a visible shelf cloud.

Next Topic: Sleet

Weather Topic: What is Snow?

Home - Education - Precipitation - Snow

Snow Next Topic: Stratocumulus Clouds

Snow is precipitation taking the form of ice crystals. Each ice crystal, or snowflake, has unique characteristics, but all of them grow in a hexagonal structure. Snowfall can last for sustained periods of time and result in significant buildup of snow on the ground.

On the earth's surface, snow starts out light and powdery, but as it begins to melt it tends to become more granular, producing small bits of ice which have the consistency of sand. After several cycles of melting and freezing, snow can become very dense and ice-like, commonly known as snow pack.

Next Topic: Stratocumulus Clouds