Forecast Details for Alton, MO

Recent Locations: Heath, OH Brumley, MO Alton, MO

Today: Sunny, with a high near 81. Calm wind becoming northeast around 5 mph in the morning.

Tonight: Clear, with a low around 51. Light northeast wind.

Wednesday: Increasing clouds, with a high near 81. Calm wind becoming southeast around 6 mph in the afternoon.

Wednesday Night: Showers likely after 1am. Mostly cloudy, with a low around 57. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

Thursday: Showers. High near 68. Southeast wind 3 to 6 mph. Chance of precipitation is 80%. New precipitation amounts between three quarters and one inch possible.

Thursday Night: Mostly cloudy, with a low around 54.

Friday: Mostly sunny, with a high near 80.

Friday Night: Partly cloudy, with a low around 55.

Saturday: Mostly sunny, with a high near 80.

Saturday Night: Partly cloudy, with a low around 56.

Sunday: Mostly sunny, with a high near 81.

Sunday Night: Partly cloudy, with a low around 56.

Labor Day: Mostly sunny, with a high near 83.

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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

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 are Cumulonimbus Clouds?

Home - Education - Cloud Types - Cumulonimbus Clouds

Cumulonimbus Clouds Next Topic: Cumulus Clouds

The final form taken by a growing cumulus cloud is the cumulonimbus cloud, which is very tall and dense. The tower of a cumulonimbus cloud can soar 23 km into the atmosphere, although most commonly they stop growing at an altitude of 6 km.

Even small cumulonimbus clouds appear very large in comparison to other cloud types. They can signal the approach of stormy weather, such as thunderstorms or blizzards.

Next Topic: Cumulus Clouds

Weather Topic: What is Drizzle?

Home - Education - Precipitation - Drizzle

Drizzle Next Topic: Evaporation

Drizzle is precipitation in the form of water droplets which are smaller than raindrops.

Drizzle is characterized by fine, gently falling droplets and typically does not impact human habitation in a negative way. The exception to this is freezing drizzle, a condition where drizzle freezes immediately upon reaching earth's surface. Freezing drizzle is still less dangerous than freezing rain, but can potentially result in hazardous road conditions.

Next Topic: Evaporation