Forecast Details for Duluth, MN

Recent Locations: Duluth, MN  
Today: A chance of flurries between 3pm and 5pm. Cloudy, with a high near 18. South wind around 5 mph.
Tonight: Mostly cloudy, with a low around 14. South wind around 5 mph.
Sunday: Mostly cloudy, with a high near 27. South wind 5 to 10 mph.
Sunday Night: A 40 percent chance of snow showers, mainly after midnight. Cloudy, with a low around 19. Southeast wind around 5 mph becoming calm.
Monday: A 20 percent chance of snow before noon. Partly sunny, with a high near 32. North wind around 5 mph.
Monday Night: Mostly cloudy, with a low around 23. North wind around 5 mph becoming calm in the evening.
Tuesday: Mostly cloudy, with a high near 32. Light south wind becoming southwest 5 to 10 mph in the morning.
Tuesday Night: Mostly cloudy, with a low around 24. Southwest wind around 5 mph.
Christmas Day: Mostly cloudy, with a high near 34. South wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday Night: Mostly cloudy, with a low around 27. South wind 5 to 10 mph, with gusts as high as 15 mph.
Thursday: Mostly cloudy, with a high near 36. South wind 5 to 10 mph, with gusts as high as 15 mph.
Thursday Night: Mostly cloudy, with a low around 31. South wind around 5 mph.
Friday: A slight chance of rain. Mostly cloudy, with a high near 38. East wind 5 to 10 mph, with gusts as high as 15 mph.

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Current U.S. National Radar--Current

The Current National Weather Radar is shown below with a UTC Time (subtract 5 hours from UTC to get Eastern Time).

Current U.S. National Radar

National Weather Forecast--Current

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Today's National Weather Map

National Weather Forecast for Tomorrow

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

Tomorrows National Weather Map

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.

North American Water Vapor Map

Weather Topic: What is Rain?

Home - Education - Precipitation - Rain

Rain Next Topic: Shelf Clouds

Precipitation in the form of water droplets is called rain. Rain generally has a tendency to fall with less intensity over a greater period of time, and when rainfall is more severe it is usually less sustained.

Rain is the most common form of precipitation and happens with greater frequency depending on the season and regional influences. Cities have been shown to have an observable effect on rainfall, due to an effect called the urban heat island. Compared to upwind, monthly rainfall between twenty and forty miles downwind of cities is 30% greater.

Next Topic: Shelf Clouds

Weather Topic: What is Sleet?

Home - Education - Precipitation - Sleet

Sleet Next Topic: Snow

Sleet is a form of precipitation in which small ice pellets are the primary components. These ice pellets are smaller and more translucent than hailstones, and harder than graupel. Sleet is caused by specific atmospheric conditions and therefore typically doesn't last for extended periods of time.

The condition which leads to sleet formation requires a warmer body of air to be wedged in between two sub-freezing bodies of air. When snow falls through a warmer layer of air it melts, and as it falls through the next sub-freezing body of air it freezes again, forming ice pellets known as sleet. In some cases, water droplets don't have time to freeze before reaching the surface and the result is freezing rain.

Next Topic: Snow