Forecast Details for Indianapolis, IN

Recent Locations: Plano, TX Charlotte, NC Indianapolis, IN

Tonight: Mostly cloudy, with a low around 55. South southwest wind 7 to 9 mph, with gusts as high as 20 mph.

Monday: Partly sunny, with a high near 75. South southwest wind 10 to 14 mph, with gusts as high as 30 mph.

Monday Night: Mostly cloudy, with a low around 64. South southwest wind 10 to 13 mph, with gusts as high as 25 mph.

Tuesday: A chance of rain between 2pm and 5pm, then a chance of rain and thunderstorms after 5pm. Partly sunny, with a high near 82. Breezy, with a south southwest wind 13 to 20 mph, with gusts as high as 38 mph. Chance of precipitation is 30%.

Tuesday Night: A chance of rain and thunderstorms before 11pm, then a chance of rain between 11pm and 2am, then rain likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 55. Southwest wind 10 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday: Rain and possibly a thunderstorm. High near 67. North wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Wednesday Night: Rain and possibly a thunderstorm. Low around 54. East northeast wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.

Thursday: Rain and possibly a thunderstorm. High near 71. South southwest wind 13 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 80%.

Thursday Night: Rain likely and possibly a thunderstorm. Cloudy, with a low around 50. South southwest wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.

Friday: A 50 percent chance of rain. Mostly cloudy, with a high near 71. Southwest wind around 10 mph, with gusts as high as 18 mph.

Friday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 55.

Saturday: Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 76. Chance of precipitation is 60%.

Saturday Night: Rain and thunderstorms likely. Mostly cloudy, with a low around 53. Chance of precipitation is 60%.

Sunday: Rain likely. Mostly cloudy, with a high near 63. 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 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