Forecast Details for Grimes, IA

Recent Locations: Harrisburg, IL Boiling Springs, SC Grimes, IA

This Afternoon: A 30 percent chance of showers. Cloudy, with a high near 50. Breezy, with an east wind around 17 mph, with gusts as high as 26 mph. New precipitation amounts of less than a tenth of an inch possible.

Tonight: Showers likely, then showers and possibly a thunderstorm after 10pm. Low around 41. Breezy, with an east wind around 16 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

Thursday: Showers and thunderstorms before 4pm, then a slight chance of showers. High near 66. Breezy, with an east southeast wind 14 to 20 mph becoming west in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

Thursday Night: Mostly cloudy, with a low around 37. Breezy, with a west wind 11 to 16 mph becoming north northwest 5 to 10 mph after midnight. Winds could gust as high as 24 mph.

Friday: Showers likely, then showers and possibly a thunderstorm after 10am. High near 63. East wind 8 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Friday 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. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Saturday: Partly sunny, with a high near 46. Windy.

Saturday Night: Partly cloudy, with a low around 30. Windy.

Sunday: Sunny, with a high near 55.

Sunday Night: Mostly clear, with a low around 35.

Monday: Partly sunny, with a high near 54.

Monday Night: Mostly cloudy, with a low around 30.

Tuesday: Mostly sunny, with a high near 51.

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Current U.S. National Radar--Current

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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 Stratus Clouds?

Home - Education - Cloud Types - Stratus Clouds

Next Topic: Wall Clouds

Stratus clouds are similar to altostratus clouds, but form at a lower altitude and are identified by their fog-like appearance, lacking the distinguishing features of most clouds.

Stratus clouds are wider than most clouds, and their base has a smooth, uniform look which is lighter in color than a nimbostratus cloud. The presence of a stratus cloud indicates the possibility of minor precipitation, such as drizzle, but heavier precipitation does not typically arrive in the form of a stratus cloud.

Next Topic: Wall Clouds

Weather Topic: What are Altocumulus Clouds?

Home - Education - Cloud Types - Altocumulus Clouds

Next Topic: Altostratus Clouds

Similar to cirrocumulus clouds, altocumulus clouds are characterized by cloud patches. They are distinguished by larger cloudlets than cirrocumulus clouds but are still smaller than stratocumulus clouds.

Altocumulus clouds most commonly form in middle altitudes (between 2 and 5 km) and may resemble, at times, the shape of a flying saucer. These uncommon formations, called altocumulus lenticularis, are created by uplift in the atmosphere and are most often seen in close proximity to mountains.

Next Topic: Altostratus Clouds