Forecast Details for Calmar, IA

Recent Locations: Calmar, IA

This Afternoon: Showers. High near 59. East wind around 15 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Tonight: Showers and thunderstorms before 1am, then a slight chance of showers and thunderstorms after 3am. Low around 49. East wind 8 to 13 mph becoming south after midnight. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Monday: Cloudy, with a high near 56. Breezy, with a west wind 13 to 16 mph, with gusts as high as 26 mph.

Monday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 39. West wind 5 to 13 mph, with gusts as high as 21 mph.

Tuesday: A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Sunny, with a high near 70. South wind 6 to 15 mph. Chance of precipitation is 20%.

Tuesday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Low around 48. Breezy, with a south wind 10 to 18 mph becoming northwest after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday: A slight chance of showers and thunderstorms, then a chance of showers after 7am. Mostly sunny, with a high near 69. West wind around 10 mph becoming east in the afternoon. Chance of precipitation is 30%.

Wednesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 52. East wind 10 to 13 mph. Chance of precipitation is 70%.

Thursday: Showers and possibly a thunderstorm. High near 68. Breezy, with an east wind 14 to 17 mph becoming south in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 80%.

Thursday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 49. Southeast wind 13 to 15 mph becoming northwest after midnight. Winds could gust as high as 23 mph.

Friday: A 30 percent chance of showers. Partly sunny, with a high near 62. Breezy, with a west wind 14 to 18 mph, with gusts as high as 28 mph.

Friday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 42. Breezy, with a northwest wind 13 to 16 mph, with gusts as high as 25 mph.

Saturday: A 30 percent chance of showers. Partly sunny, with a high near 60. Breezy, with a southwest wind 13 to 16 mph.

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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