Forecast Details for Harlan, IA

Recent Locations: Mendenhall, MS Quincy, OH Harlan, IA

Tonight: Rain, with thunderstorms also possible after 1am. Low around 39. East wind around 15 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

Thursday: Rain and thunderstorms, mainly before 2pm. High near 54. East wind 10 to 16 mph becoming west northwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

Thursday Night: Partly cloudy, with a low around 34. West northwest wind 8 to 13 mph becoming light and variable. Winds could gust as high as 20 mph.

Friday: Rain and possibly a thunderstorm. High near 56. East wind 10 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday Night: A chance of rain and thunderstorms before 7pm, then a chance of rain between 7pm and 1am. Mostly cloudy, with a low around 29. West northwest wind 11 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday: Mostly cloudy, with a high near 44. Breezy, with a west northwest wind 15 to 23 mph, with gusts as high as 32 mph.

Saturday Night: Mostly clear, with a low around 26. Blustery, with a northwest wind 16 to 21 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 26 mph.

Sunday: Sunny, with a high near 56. Northwest wind 7 to 11 mph, with gusts as high as 16 mph.

Sunday Night: Mostly clear, with a low around 33. West northwest wind 6 to 8 mph.

Monday: Mostly cloudy, with a high near 54. North wind 5 to 13 mph, with gusts as high as 18 mph.

Monday Night: A slight chance of rain and snow. Mostly cloudy, with a low around 27. North northeast wind around 10 mph, with gusts as high as 17 mph.

Tuesday: Partly sunny, with a high near 51. East northeast wind 10 to 16 mph becoming southeast in the afternoon. Winds could gust as high as 22 mph.

Tuesday Night: A slight chance of rain. Mostly cloudy, with a low around 36. Southeast wind around 15 mph, with gusts as high as 22 mph.

Wednesday: A slight chance of rain. Mostly sunny, with a high near 65. Breezy, with a south wind 15 to 23 mph, with gusts as high as 30 mph.

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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