Forecast Details for Rock Falls, IA

Recent Locations: Eastchester, NY Rock Falls, IA

Overnight: Mostly cloudy, with a low around 33. North northeast wind 10 to 14 mph, with gusts as high as 21 mph.

Wednesday: A 30 percent chance of showers, mainly after 4pm. Increasing clouds, with a high near 48. Breezy, with an east wind 10 to 17 mph, with gusts as high as 23 mph. New precipitation amounts of less than a tenth of an inch possible.

Wednesday Night: Rain showers before 1am, then rain showers, possibly mixed with sleet between 1am and 2am, then rain showers after 2am. Low around 34. Breezy, with an east wind 18 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. Little or no sleet accumulation expected.

Thursday: Showers before 1pm, then showers and possibly a thunderstorm between 1pm and 4pm, then showers likely after 4pm. High near 54. Breezy, with an east wind 14 to 20 mph becoming west northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

Thursday Night: Showers likely before 7pm. Mostly cloudy, with a low around 30. Blustery, with a west northwest wind 13 to 18 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Friday: A chance of rain and thunderstorms before 10am, then a chance of rain between 10am and 1pm, then rain and possibly a thunderstorm after 1pm. High near 48. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 31. Blustery. Chance of precipitation is 80%.

Saturday: A chance of rain and snow showers before 1pm, then a chance of rain showers. Mostly cloudy, with a high near 41. Windy. Chance of precipitation is 40%.

Saturday Night: Mostly cloudy, with a low around 26. Windy.

Sunday: Sunny, with a high near 47. Breezy.

Sunday Night: Mostly clear, with a low around 29.

Monday: Mostly sunny, with a high near 57. Breezy.

Monday Night: Partly cloudy, with a low around 33.

Tuesday: Mostly sunny, with a high near 55. Breezy.

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North America Water Vapor (Moisture)

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Weather Topic: What is Hail?

Home - Education - Precipitation - Hail

Hail Next Topic: Hole Punch Clouds

Hail is a form of precipitation which is recognized by large solid balls or clumps of ice. Hail is created by thunderstorm clouds with strong updrafts of wind. As the hailstones remain in the updraft, ice is deposited onto them until their weight becomes heavy enough for them to fall to the earth's surface.

Hail storms can cause significant damage to crops, aircrafts, and man-made structures, despite the fact that the duration is usually less than ten minutes.

Next Topic: Hole Punch Clouds

Weather Topic: What are Mammatus Clouds?

Home - Education - Cloud Types - Mammatus Clouds

Mammatus Clouds Next Topic: Nimbostratus Clouds

A mammatus cloud is a cloud with a unique feature which resembles a web of pouches hanging along the base of the cloud.

In the United States, mammatus clouds tend to form in the warmer months, commonly in the Midwest and eastern regions.

While they usually form at the bottom of a cumulonimbis cloud, they can also form under altostratus, altocumulus, stratocumulus, and cirrus clouds. Mammatus clouds warn that severe weather is close.

Next Topic: Nimbostratus Clouds