Forecast Details for Calmar, IA

Recent Locations: Calmar, IA  
Current Alerts for Calmar, IA: Freeze Warning
Overnight: Partly cloudy, with a steady temperature around 32. Northwest wind around 9 mph, with gusts as high as 23 mph.
Saturday: A chance of flurries before 11am, then a chance of sprinkles and flurries between 11am and noon, then a chance of sprinkles after noon. Mostly cloudy, with a high near 45. Breezy, with a northwest wind 13 to 16 mph.
Saturday Night: A chance of sprinkles before 9pm. Widespread frost before 1am, then widespread frost after 2am. Otherwise, mostly cloudy, then gradually becoming clear, with a low around 29. West wind 8 to 10 mph.
Sunday: Sunny, with a high near 57. West wind 9 to 14 mph.
Sunday Night: Widespread frost, mainly after 5am. Otherwise, mostly clear, with a low around 33. Southwest wind 6 to 9 mph.
Monday: A 30 percent chance of showers after 1pm. Partly sunny, with a high near 62. Breezy, with a south wind 8 to 13 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 32 mph.
Monday Night: Showers before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Low around 45. Breezy, with a south wind 18 to 22 mph, with gusts as high as 32 mph. Chance of precipitation is 80%.
Tuesday: A 50 percent chance of showers. Partly sunny, with a high near 59. Breezy, with a west wind 16 to 22 mph, with gusts as high as 32 mph.
Tuesday Night: Mostly clear, with a low around 33. Breezy, with a north wind 16 to 21 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 31 mph.
Wednesday: Sunny, with a high near 55. Northeast wind around 11 mph.
Wednesday Night: Partly cloudy, with a low around 35. Southeast wind 7 to 9 mph.
Thursday: A 20 percent chance of showers. Mostly sunny, with a high near 60. Southeast wind 11 to 15 mph, with gusts as high as 23 mph.
Thursday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 42. Breezy, with a southeast wind 15 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.
Friday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 59. Breezy, with a southeast wind 21 to 24 mph, with gusts as high as 36 mph. Chance of precipitation is 70%.

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Current U.S. National Radar--Current

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Weather Topic: What are Fractus Clouds?

Home - Education - Cloud Types - Fractus Clouds

Fractus Clouds Next Topic: Freezing Rain

A fractus cloud (scud) is a fragmented, tattered cloud which has likely been sheared off of another cloud. They are accessory clouds, meaning they develop from parent clouds, and are named in a way which describes the original cloud which contained them.

Fractus clouds which have originated from cumulus clouds are referred to as cumulus fractus, while fractus clouds which have originated from stratus clouds are referred to as stratus fractus. Under certain conditions a fractus cloud might merge with another cloud, or develop into a cumulus cloud, but usually a fractus cloud seen by itself will dissipate rapidly.

They are often observed on the leading and trailing edges of storm clouds, and are a display of wind activity.

Next Topic: Freezing Rain

Weather Topic: What is Graupel?

Home - Education - Precipitation - Graupel

Graupel Next Topic: Hail

Graupel is a form of precipitation that is created by atmospheric conditions which cause supercooled water droplets to contact snow crystals and freeze to their surface.

Sometimes known as soft hail or snow pellets, graupel is delicate and easily destroyed by touch. Whereas hail usually falls during severe weather, graupel doesn't require such conditions to form, and can form in mild precipitation similar to situations which produce snowfall.

Next Topic: Hail