Forecast Details for Lyons, SD

Recent Locations: Spring City, PA Flynn, TX Lyons, SD

Today: Rain, snow, freezing rain, and sleet before 2pm, then a chance of rain between 2pm and 5pm, then a chance of sprinkles after 5pm. High near 37. East northeast wind 10 to 15 mph becoming north in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 90%. Little or no ice accumulation expected. Total daytime snow and sleet accumulation of less than a half inch possible.

Tonight: Mostly cloudy, with a low around 27. North wind 5 to 10 mph becoming east northeast after midnight.

Friday: Freezing rain before noon, then rain or freezing rain between noon and 1pm, then rain likely after 1pm. Some thunder is also possible. High near 36. East wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New ice accumulation of around a 0.1 of an inch possible.

Friday Night: Rain and snow showers likely, becoming all snow after 10pm. Cloudy, with a low around 27. Blustery, with a northeast wind 10 to 20 mph becoming west northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Saturday: A 40 percent chance of snow showers, mainly before 1pm. Cloudy, with a high near 38. Windy, with a northwest wind 20 to 30 mph, with gusts as high as 40 mph. New snow accumulation of less than a half inch possible.

Saturday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 23. Blustery, with a west northwest wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 30 mph.

Sunday: Sunny, with a high near 51.

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

Monday: Mostly cloudy, with a high near 44.

Monday Night: Mostly cloudy, with a low around 22.

Tuesday: Mostly cloudy, with a high near 51. Breezy.

Tuesday Night: Mostly cloudy, with a low around 37. Breezy.

Wednesday: Partly sunny, with a high near 66. Breezy.

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

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).

National Weather Forecast--Current

The Current National Weather Forecast and National Weather Map are shown below.

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 Cirrocumulus Clouds?

Home - Education - Cloud Types - Cirrocumulus Clouds

Next Topic: Cirrostratus Clouds

Cirrocumulus clouds form at high altitudes (usually around 5 km) and have distinguishing characteristics displayed in a fine layer of small cloud patches. These small cloud patches are sometimes referred to as "cloudlets" in relation to the whole cloud formation.

Cirrocumulus clouds are formed from ice crystals and water droplets. Often, the water droplets in the cloud freeze into ice crystals and the cloud becomes a cirrostratus cloud. Because of this common occurrence, cirrocumulus cloud formations generally pass rapidly.

Next Topic: Cirrostratus Clouds

Weather Topic: What are Cirrus Clouds?

Home - Education - Cloud Types - Cirrus Clouds

Next Topic: Condensation

Cirrus clouds are high-level clouds that occur above 20,000 feet and are composed mainly of ice crystals. They are thin and wispy in appearance.

What do they indicate?
They are often the first sign of an approaching storm.

Next Topic: Condensation