Forecast Details for Lannon, WI

Recent Locations: Glenwood, IA Bethel, DE Lannon, WI

Tonight: Patchy fog after 2am. Otherwise, mostly clear, with a low around 52. East wind around 5 mph becoming calm in the evening.

Tuesday: Patchy fog before 8am. Otherwise, sunny, with a high near 78. Calm wind becoming southwest around 5 mph in the afternoon.

Tuesday Night: Partly cloudy, with a low around 58. Calm wind becoming southwest around 5 mph after midnight.

Wednesday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 71. Southwest wind 5 to 15 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Wednesday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Cloudy during the early evening, then gradual clearing, with a low around 43. Northwest wind around 10 mph. Chance of precipitation is 40%.

Thursday: Mostly sunny, with a high near 61. West wind 10 to 15 mph.

Thursday Night: A 50 percent chance of showers after 1am. Increasing clouds, with a low around 48. Southwest wind 5 to 10 mph.

Friday: A 30 percent chance of showers, mainly before 1pm. Partly sunny, with a high near 64. West wind 10 to 15 mph.

Friday Night: Mostly clear, with a low around 44.

Saturday: Mostly sunny, with a high near 64.

Saturday Night: Partly cloudy, with a low around 44.

Sunday: Sunny, with a high near 65.

Sunday Night: Mostly clear, with a low around 47.

Monday: Mostly sunny, with a high near 69.

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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 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

Weather Topic: What are Wall Clouds?

Home - Education - Cloud Types - Wall Clouds

Wall Clouds Next Topic: Altocumulus Clouds

A wall cloud forms underneath the base of a cumulonimbus cloud, and can be a hotbed for deadly tornadoes.

Wall clouds are formed by air flowing into the cumulonimbus clouds, which can result in the wall cloud descending from the base of the cumulonimbus cloud, or rising fractus clouds which join to the base of the storm cloud as the wall cloud takes shape.

Wall clouds can be very large, and in the Northern Hemisphere they generally form at the southern edge of cumulonimbus clouds.

Next Topic: Altocumulus Clouds