Forecast Details for Sumner, IL

Recent Locations: Mapleton, MN Ricketts, IA Sumner, IL

Overnight: A 20 percent chance of showers and thunderstorms before 3am. Mostly cloudy, with a low around 59. South southeast wind 9 to 11 mph, with gusts as high as 20 mph.

Thursday: A slight chance of showers between 2pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 79. Breezy, with a south wind 15 to 20 mph increasing to 24 to 29 mph in the afternoon. Winds could gust as high as 44 mph. Chance of precipitation is 40%.

Thursday Night: Showers and thunderstorms likely, mainly before 8pm, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 64. Breezy, with a south southwest wind 13 to 23 mph, with gusts as high as 33 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Friday: Showers likely, with thunderstorms also possible after 1pm. Partly sunny, with a high near 80. South southwest wind 11 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday Night: A chance of showers before 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then showers and possibly a thunderstorm after 1am. Low around 64. South wind 11 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Saturday: Showers and possibly a thunderstorm. High near 68. South southwest wind around 15 mph becoming west in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

Saturday Night: Mostly cloudy, with a low around 40. West northwest wind 10 to 13 mph, with gusts as high as 20 mph.

Sunday: Sunny, with a high near 56.

Sunday Night: Clear, with a low around 37.

Monday: Sunny, with a high near 62.

Monday Night: Partly cloudy, with a low around 38.

Tuesday: Mostly sunny, with a high near 58.

Tuesday Night: Partly cloudy, with a low around 37.

Wednesday: Mostly sunny, with a high near 66.

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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