Forecast Details for Eureka, SD

Recent Locations: Maroa, IL Donner, LA Eureka, SD

This Afternoon: Mostly sunny, with a high near 80. Breezy, with a west wind around 24 mph.

Tonight: Rain showers likely before 3am, then rain likely, possibly mixed with snow showers between 3am and 4am, then a chance of snow showers after 4am. Some thunder is also possible. Increasing clouds, with a low around 28. Blustery, with a north wind 16 to 21 mph increasing to 24 to 29 mph after midnight. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Friday: A chance of snow showers, mainly before 8am. Mostly cloudy, with a high near 40. Windy, with a northwest wind 26 to 33 mph. Chance of precipitation is 40%.

Friday Night: Mostly cloudy, with a low around 21. Windy, with a northwest wind 20 to 30 mph.

Saturday: Sunny, with a high near 45. Breezy, with a northwest wind 18 to 24 mph.

Saturday Night: Partly cloudy, with a low around 25. Blustery, with a west northwest wind 16 to 21 mph decreasing to 6 to 11 mph after midnight.

Sunday: Sunny, with a high near 55. Northwest wind 6 to 10 mph becoming east southeast in the afternoon.

Sunday Night: Mostly clear, with a low around 33. Southeast wind 11 to 16 mph.

Monday: Sunny, with a high near 70. Breezy, with a south southeast wind 17 to 20 mph becoming southwest in the afternoon.

Monday Night: Mostly clear, with a low around 41.

Tuesday: Sunny, with a high near 73.

Tuesday Night: Mostly clear, with a low around 47.

Wednesday: Mostly sunny, with a high near 72. Breezy.

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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 Cumulus Clouds?

Home - Education - Cloud Types - Cumulus Clouds

Next Topic: Drizzle

Cumulus clouds are fluffy and textured with rounded tops, and may have flat bottoms. The border of a cumulus cloud is clearly defined, and can have the appearance of cotton or cauliflower.

Cumulus clouds form at low altitudes (rarely above 2 km) but can grow very tall, becoming cumulus congestus and possibly the even taller cumulonimbus clouds. When cumulus clouds become taller, they have a greater chance of producing precipitation.

Next Topic: Drizzle

Weather Topic: What is Evaporation?

Home - Education - Precipitation - Evaporation

Next Topic: Fog

Evaporation is the process which returns water from the earth back to the atmosphere, and is another crucial process in the water cycle.

Evaporation is the transformation of liquid into gas, and it happens because molecules are excited by the application of energy and turn into vapor. In order for water to evaporate it has to be on the surface of a body of water.

Next Topic: Fog