Forecast Details for Lyons, SD

Recent Locations: Diablo, CA Stoneboro, PA Lyons, SD

Overnight: Areas of smoke. Partly cloudy, with a low around 54. Southeast wind around 5 mph.

Saturday: Areas of smoke before 10am. Partly sunny, with a high near 74. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.

Saturday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Areas of smoke between 1am and 3am. Mostly cloudy, with a low around 62. South southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday: Showers likely and possibly a thunderstorm before 7am, then a chance of showers and thunderstorms, mainly between 7am and 1pm. Areas of smoke before 3pm, then areas of smoke after 4pm. Mostly cloudy, with a high near 74. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

Sunday Night: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 61. South southeast wind 10 to 15 mph.

Monday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 77. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

Monday Night: Mostly cloudy, with a low around 63.

Tuesday: Mostly sunny, with a high near 81.

Tuesday Night: Partly cloudy, with a low around 67.

Wednesday: Mostly sunny, with a high near 84.

Wednesday Night: Partly cloudy, with a low around 68.

Thursday: Mostly sunny, with a high near 87.

Thursday Night: Partly cloudy, with a low around 68.

Friday: Mostly sunny, with a high near 86.

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 Stratocumulus Clouds?

Home - Education - Cloud Types - Stratocumulus Clouds

Next Topic: Stratus Clouds

Stratocumulus clouds are similar to altocumulus clouds in their fluffy appearance, but have a slightly darker shade due to their additional mass.

A good way to distinguish the two cloud types is to hold your hand out and measure the size of an individual cloud; if it is the size of your thumb it is generally an altocumulus cloud, if it is the size of your hand it is generally a stratocumulus cloud.

It is uncommon for stratocumulus clouds to produce precipitation, but if they do it is usually a light rain or snow.

Next Topic: Stratus Clouds

Weather Topic: What are Wall Clouds?

Home - Education - Cloud Types - Wall Clouds

Wall Clouds Next Topic: Altocumulus Clouds

A wall cloud forms underneath the base of a cumulonimbus cloud, and can be a hotbed for deadly tornadoes.

Wall clouds are formed by air flowing into the cumulonimbus clouds, which can result in the wall cloud descending from the base of the cumulonimbus cloud, or rising fractus clouds which join to the base of the storm cloud as the wall cloud takes shape.

Wall clouds can be very large, and in the Northern Hemisphere they generally form at the southern edge of cumulonimbus clouds.

Next Topic: Altocumulus Clouds