Forecast Details for Arrowsmith, IL

Recent Locations: Arrowsmith, IL  
Today: A slight chance of drizzle before 1pm, then a chance of sprinkles between 1pm and 3pm. Partly sunny, with a high near 73. North northeast wind around 10 mph.
Tonight: Mostly clear, with a low around 52. East northeast wind 7 to 11 mph, with gusts as high as 20 mph.
Saturday: A 30 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 80. East southeast wind 6 to 8 mph becoming south southwest in the afternoon.
Saturday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Mostly cloudy, with a low around 55. West southwest wind 8 to 11 mph becoming north northwest after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 50%.
Sunday: Mostly sunny, with a high near 71. Northeast wind 8 to 10 mph, with gusts as high as 16 mph.
Sunday Night: Mostly cloudy, with a low around 51. East wind 9 to 14 mph, with gusts as high as 21 mph.
Monday: A 40 percent chance of showers. Mostly sunny, with a high near 76. East wind 11 to 13 mph, with gusts as high as 18 mph.
Monday Night: A chance of showers, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.
Tuesday: Showers and possibly a thunderstorm. High near 79. Breezy. Chance of precipitation is 80%.
Tuesday Night: A 50 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 58.
Wednesday: A chance of showers and thunderstorms. Mostly sunny, with a high near 80.
Wednesday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 56.
Thursday: A chance of showers. Mostly sunny, with a high near 74.

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Current U.S. National Radar--Current

The Current National Weather Radar is shown below with a UTC Time (subtract 5 hours from UTC to get Eastern Time).

Current U.S. National Radar

National Weather Forecast--Current

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Today's National Weather Map

National Weather Forecast for Tomorrow

Tomorrow National Weather Forecast and Tomorrow National Weather Map are show below.

Tomorrows National Weather Map

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