Forecast Details for Greenville, SC

Recent Locations: Greenville, SC

Today: Showers and thunderstorms likely, mainly after 5pm. Patchy fog before 8am. Otherwise, cloudy, with a high near 84. Calm wind becoming south southwest 5 to 8 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight: Showers and thunderstorms likely, mainly before 7pm. Mostly cloudy, with a low around 70. South southwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Saturday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 3pm. Patchy fog before 8am. High near 86. Southwest wind 6 to 9 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday Night: Showers and thunderstorms before 2am, then a chance of showers. Low around 70. Southwest wind 5 to 7 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 3pm. High near 86. Southwest wind 6 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 80%.

Sunday Night: Showers and thunderstorms likely before 1am, then a slight chance of showers between 1am and 3am. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.

Monday: A chance of showers between 1pm and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. Chance of precipitation is 40%.

Monday Night: A 30 percent chance of showers and thunderstorms before 11pm. Mostly cloudy, with a low around 70.

Tuesday: A chance of showers between 1pm and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. Chance of precipitation is 40%.

Tuesday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 1am. Partly cloudy, with a low around 72. Chance of precipitation is 40%.

Wednesday: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.

Wednesday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.

Juneteenth: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.

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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