Forecast Details for Saint Petersburg, FL

Recent Locations: Saint Petersburg, FL

Today: Isolated showers and thunderstorms after 2pm. Sunny and hot, with a high near 95. Heat index values as high as 103. East northeast wind 6 to 9 mph. Chance of precipitation is 20%.

Tonight: Isolated showers and thunderstorms before 9pm. Mostly clear, with a low around 76. East wind around 9 mph. Chance of precipitation is 20%.

Wednesday: Scattered showers and thunderstorms, mainly after 2pm. Sunny, with a high near 93. Heat index values as high as 100. East northeast wind around 7 mph. Chance of precipitation is 40%.

Wednesday Night: Scattered showers and thunderstorms, mainly before 2am. Partly cloudy, with a low around 75. West southwest wind 7 to 11 mph becoming east southeast in the evening. Chance of precipitation is 50%.

Thursday: Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Sunny, with a high near 91. East southeast wind around 6 mph becoming south southwest in the afternoon. Chance of precipitation is 60%.

Thursday Night: Showers likely and possibly a thunderstorm before 8pm, then scattered showers and thunderstorms after 8pm. Partly cloudy, with a low around 76. West wind around 5 mph becoming light and variable in the evening. Chance of precipitation is 60%.

Friday: Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 90. Southwest wind 3 to 8 mph. Chance of precipitation is 70%.

Friday Night: Showers likely and possibly a thunderstorm before 8pm, then scattered showers and thunderstorms after 8pm. Mostly cloudy, with a low around 77. Southwest wind 3 to 6 mph. Chance of precipitation is 60%.

Saturday: Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 91. Southeast wind 5 to 9 mph becoming west southwest in the afternoon. Chance of precipitation is 60%.

Saturday Night: Showers likely and possibly a thunderstorm before 8pm, then scattered showers and thunderstorms, mainly between 8pm and 2am. Mostly cloudy, with a low around 76. Chance of precipitation is 60%.

Sunday: Showers and thunderstorms likely. Partly sunny, with a high near 91. Chance of precipitation is 60%.

Sunday Night: Showers and thunderstorms likely. Mostly cloudy, with a low around 76. Chance of precipitation is 60%.

Monday: Showers and thunderstorms likely. Partly sunny, with a high near 90. Chance of precipitation is 60%.

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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 Cirrus Clouds?

Home - Education - Cloud Types - Cirrus Clouds

Next Topic: Condensation

Cirrus clouds are high-level clouds that occur above 20,000 feet and are composed mainly of ice crystals. They are thin and wispy in appearance.

What do they indicate?
They are often the first sign of an approaching storm.

Next Topic: Condensation

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