Forecast Details for Mapleton, OR

Recent Locations: Springboro, OH Lannon, WI Mapleton, OR

Current Alerts for Mapleton, OR: Winter Storm Warning

Tonight: Showers and possibly a thunderstorm before 5am, then rain and possibly a thunderstorm after 5am. Low around 40. Southwest wind 3 to 8 mph. Winds could gust as high as 22 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

Thursday: Rain likely, mainly before 2pm. Partly sunny, with a high near 55. Calm wind becoming west southwest around 5 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Thursday Night: Patchy fog after 11pm. Patchy frost after 5am. Otherwise, mostly clear, with a low around 37. Light and variable wind.

Friday: Patchy fog before 9am. Otherwise, sunny, with a high near 64. Calm wind.

Friday Night: Clear, with a low around 41. Calm wind.

Saturday: Sunny, with a high near 71.

Saturday Night: Partly cloudy, with a low around 46.

Sunday: Mostly sunny, with a high near 75.

Sunday Night: Partly cloudy, with a low around 47.

Monday: Mostly sunny, with a high near 69.

Monday Night: Mostly cloudy, with a low around 46.

Tuesday: A chance of rain. Partly sunny, with a high near 63.

Tuesday Night: A chance of rain. Mostly cloudy, with a low around 42.

Wednesday: A chance of rain. Partly sunny, with a high near 60.

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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 Nimbostratus Clouds?

Home - Education - Cloud Types - Nimbostratus Clouds

Nimbostratus Clouds Next Topic: Precipitation

A nimbostratus cloud is similar to a stratus cloud in its formless, smooth appearance. However, a nimbostratus cloud is darker than a stratus cloud, because it is thicker.

Unlike a stratus cloud, a nimbostratus cloud typically brings with it the threat of moderate to heavy precipitation. In some cases, the precipitation may evaporate before reaching the ground, a phenomenon known as virga.

Next Topic: Precipitation

Weather Topic: What is Rain?

Home - Education - Precipitation - Rain

Rain Next Topic: Shelf Clouds

Precipitation in the form of water droplets is called rain. Rain generally has a tendency to fall with less intensity over a greater period of time, and when rainfall is more severe it is usually less sustained.

Rain is the most common form of precipitation and happens with greater frequency depending on the season and regional influences. Cities have been shown to have an observable effect on rainfall, due to an effect called the urban heat island. Compared to upwind, monthly rainfall between twenty and forty miles downwind of cities is 30% greater.

Next Topic: Shelf Clouds