Forecast Details for Garnavillo, IA

Recent Locations: Killduff, IA Logan, OH Garnavillo, IA

Today: Increasing clouds, with a high near 50. Breezy, with an east wind 11 to 16 mph.

Tonight: Showers, with thunderstorms also possible after 1am. Low around 36. Breezy, with an east wind 17 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

Thursday: Showers, with thunderstorms also possible after 10am. High near 61. Breezy, with an east wind 15 to 18 mph becoming south in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

Thursday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Mostly cloudy, with a low around 35. Breezy, with a southwest wind 9 to 18 mph becoming west after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday: Showers likely and possibly a thunderstorm, mainly after 4pm. Partly sunny, with a high near 61. Northwest wind 6 to 11 mph becoming east in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday Night: Showers and possibly a thunderstorm. Low around 39. East wind around 14 mph becoming southwest after midnight. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

Saturday: A 30 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 46. Breezy, with a west wind 14 to 20 mph, with gusts as high as 28 mph.

Saturday Night: Mostly cloudy, with a low around 29. Breezy, with a west wind 18 to 22 mph.

Sunday: Mostly sunny, with a high near 48. Breezy, with a northwest wind 13 to 18 mph, with gusts as high as 26 mph.

Sunday Night: A slight chance of rain and snow showers after 1am. Partly cloudy, with a low around 29. Northwest wind 6 to 10 mph becoming southwest after midnight. Chance of precipitation is 20%.

Monday: A 40 percent chance of showers. Mostly sunny, with a high near 52. Southwest wind 6 to 11 mph becoming northwest in the afternoon.

Monday Night: A 30 percent chance of showers. Partly cloudy, with a low around 29. North wind 8 to 10 mph.

Tuesday: Partly sunny, with a high near 47. North wind 8 to 10 mph.

Want more detail? Get the Complete 7 Day and Night Detailed Forecast!

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).

National Weather Forecast--Current

The Current National Weather Forecast and National Weather Map are shown below.

National Weather Forecast for Tomorrow

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

North America Water Vapor (Moisture)

This map shows recent moisture content over North America. Bright and colored areas show high moisture (ie, clouds); brown indicates very little moisture present; black indicates no moisture.

Weather Topic: What is Sleet?

Home - Education - Precipitation - Sleet

Sleet Next Topic: Snow

Sleet is a form of precipitation in which small ice pellets are the primary components. These ice pellets are smaller and more translucent than hailstones, and harder than graupel. Sleet is caused by specific atmospheric conditions and therefore typically doesn't last for extended periods of time.

The condition which leads to sleet formation requires a warmer body of air to be wedged in between two sub-freezing bodies of air. When snow falls through a warmer layer of air it melts, and as it falls through the next sub-freezing body of air it freezes again, forming ice pellets known as sleet. In some cases, water droplets don't have time to freeze before reaching the surface and the result is freezing rain.

Next Topic: Snow

Weather Topic: What are Stratocumulus Clouds?

Home - Education - Cloud Types - Stratocumulus Clouds

Next Topic: Stratus Clouds

Stratocumulus clouds are similar to altocumulus clouds in their fluffy appearance, but have a slightly darker shade due to their additional mass.

A good way to distinguish the two cloud types is to hold your hand out and measure the size of an individual cloud; if it is the size of your thumb it is generally an altocumulus cloud, if it is the size of your hand it is generally a stratocumulus cloud.

It is uncommon for stratocumulus clouds to produce precipitation, but if they do it is usually a light rain or snow.

Next Topic: Stratus Clouds