Forecast Details for Rio Grande City, TX

Recent Locations: Oakwood, TX Costa Mesa, CA Rio Grande City, TX

This Afternoon: Sunny and hot, with a high near 104. Heat index values as high as 109. Southeast wind around 8 mph.

Tonight: Mostly clear, with a low around 78. Southeast wind 6 to 10 mph, with gusts as high as 22 mph.

Sunday: Sunny and hot, with a high near 104. Heat index values as high as 110. Southeast wind 5 to 7 mph.

Sunday Night: Mostly clear, with a low around 78. East southeast wind 5 to 9 mph becoming light southeast after midnight. Winds could gust as high as 20 mph.

Labor Day: A 30 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 102. Calm wind becoming east around 6 mph in the afternoon.

Monday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77. East wind 5 to 8 mph becoming calm after midnight.

Tuesday: A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 98. Calm wind becoming north around 6 mph in the afternoon. Chance of precipitation is 50%.

Tuesday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 75. Northeast wind around 5 mph becoming calm in the evening.

Wednesday: Mostly sunny and hot, with a high near 100. Calm wind becoming north around 6 mph in the afternoon.

Wednesday Night: Partly cloudy, with a low around 74. East northeast wind around 6 mph becoming calm in the evening.

Thursday: Mostly sunny and hot, with a high near 100. Calm wind becoming east around 6 mph in the afternoon.

Thursday Night: Partly cloudy, with a low around 74.

Friday: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 98.

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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

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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