Forecast Details for Winnsboro, LA

Recent Locations: Sylmar, CA Decaturville, TN Winnsboro, LA

Tonight: A slight chance of showers and thunderstorms before 3am, then a slight chance of showers between 3am and 5am. Partly cloudy, with a low around 75. Calm wind. Chance of precipitation is 20%.

Thursday: Showers and thunderstorms, mainly before 4pm. High near 95. Heat index values as high as 103. Calm wind becoming west southwest around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday Night: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 74. South southwest wind around 5 mph becoming calm.

Friday: A slight chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then showers and thunderstorms likely after 4pm. Mostly sunny, with a high near 95. Heat index values as high as 103. Calm wind becoming southwest around 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday Night: Thunderstorms likely before 7pm. Partly cloudy, with a low around 75. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Saturday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 96. Calm wind.

Saturday Night: Partly cloudy, with a low around 75. Calm wind.

Sunday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 97. Calm wind becoming north northeast around 5 mph.

Sunday Night: Mostly clear, with a low around 74. Calm wind.

Monday: A 30 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 97.

Monday Night: Mostly clear, with a low around 74.

Tuesday: A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 97.

Tuesday Night: Mostly clear, with a low around 74.

Wednesday: A 30 percent chance of showers and thunderstorms. Sunny and hot, with a high near 97.

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National Weather Forecast--Current

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National Weather Forecast for Tomorrow

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North America Water Vapor (Moisture)

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Weather Topic: What are Contrails?

Home - Education - Cloud Types - Contrails

Next Topic: Cumulonimbus Clouds

A contrail is an artificial cloud, created by the passing of an aircraft.

Contrails form because water vapor in the exhaust of aircraft engines is suspended in the air under certain temperatures and humidity conditions. These contrails are called exhaust contrails.

Another type of contrail can form due to a temporary reduction in air pressure moving over the plane's surface, causing condensation. These are called aerodynamic contrails.

When you can see your breath on a cold day, it is also because of condensation. The reason contrails last longer than the condensation from your breath is because the water in contrails freezes into ice particles.

Next Topic: Cumulonimbus Clouds

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