Forecast Details for Castle Rock, MN

Recent Locations: Saint Petersburg, PA Warsaw, NY Castle Rock, MN

Today: Scattered showers, mainly after 3pm. Mostly cloudy, with a high near 61. West northwest wind 5 to 10 mph. Chance of precipitation is 30%.

Tonight: Isolated showers before 7pm. Mostly clear, with a low around 39. West northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 10%.

Sunday: Sunny, with a high near 65. Calm wind becoming west northwest around 5 mph in the afternoon.

Sunday Night: Increasing clouds, with a low around 47. Calm wind becoming south around 5 mph after midnight.

Monday: A chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 72. South wind 10 to 15 mph. Chance of precipitation is 40%.

Monday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 58. South wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Tuesday: A 30 percent chance of showers and thunderstorms before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 76. Southwest wind around 5 mph.

Tuesday Night: Partly cloudy, with a low around 57. South southeast wind around 5 mph becoming calm.

Wednesday: Mostly sunny, with a high near 76. Calm wind becoming east around 5 mph in the afternoon.

Wednesday Night: Partly cloudy, with a low around 56. East wind around 5 mph.

Thursday: Partly sunny, with a high near 73. East southeast wind 5 to 10 mph.

Thursday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 56. East southeast wind 5 to 10 mph.

Friday: A 20 percent chance of showers. Partly sunny, with a high near 74. Southeast wind around 10 mph.

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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