Forecast Details for Lansing, IA

Recent Locations: Lansing, IA  
Tonight: Mostly clear, with a low around 62. Southeast wind 3 to 5 mph.
Thursday: A slight chance of showers and thunderstorms before 3pm, then a chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 86. South wind 3 to 8 mph. Chance of precipitation is 30%.
Thursday Night: Showers and thunderstorms, mainly before 1am. Patchy fog after 4am. Low around 62. South wind around 6 mph becoming calm after midnight. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Friday: Patchy fog before 9am. Otherwise, sunny, with a high near 83. Calm wind becoming west around 5 mph in the afternoon.
Friday Night: Mostly clear, with a low around 56. Calm wind.
Saturday: A 20 percent chance of showers. Mostly sunny, with a high near 83. Calm wind becoming south around 5 mph.
Saturday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Light southeast wind.
Sunday: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 74. Northeast wind 3 to 6 mph.
Sunday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 56. North wind around 6 mph.
Monday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 72. Southeast wind around 7 mph.
Monday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 54. Southeast wind around 6 mph.
Tuesday: A 30 percent chance of showers. Partly sunny, with a high near 71. Light and variable wind becoming west around 6 mph in the morning.
Tuesday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 52. Light west wind.
Wednesday: A 20 percent chance of showers. Mostly sunny, with a high near 72. Calm wind becoming northwest around 5 mph in the afternoon.

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Current U.S. National Radar--Current

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Current U.S. National Radar

National Weather Forecast--Current

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Today's National Weather Map

National Weather Forecast for Tomorrow

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North America Water Vapor (Moisture)

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North American Water Vapor Map

Weather Topic: What are Contrails?

Home - Education - Cloud Types - Contrails

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

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