Forecast Details for San Antonio, TX

Recent Locations: Mount Kisco, NY Walnut Creek, OH San Antonio, TX

Today: Sunny and hot, with a high near 101. Heat index values as high as 105. Calm wind becoming east southeast around 5 mph in the afternoon.

Tonight: Mostly clear, with a low around 78. Southeast wind around 5 mph becoming east northeast after midnight.

Monday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 101. Heat index values as high as 104. South southeast wind around 5 mph.

Monday Night: A 20 percent chance of showers before 1am. Partly cloudy, with a low around 77. East southeast wind 5 to 10 mph.

Tuesday: Mostly sunny, with a high near 98. East southeast wind 5 to 10 mph.

Tuesday Night: Mostly clear, with a low around 77. East wind 5 to 10 mph becoming south after midnight.

Wednesday: Sunny and hot, with a high near 99. Calm wind becoming southeast around 5 mph in the afternoon.

Wednesday Night: Mostly clear, with a low around 77. South southeast wind 5 to 10 mph.

Thursday: Sunny and hot, with a high near 99. Calm wind becoming southeast around 5 mph in the morning.

Thursday Night: Mostly clear, with a low around 77.

Friday: Sunny and hot, with a high near 100.

Friday Night: Mostly clear, with a low around 77.

Saturday: Sunny and hot, with a high near 99.

Want more detail? Get the Complete 7 Day and Night Detailed Forecast!

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)

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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