Forecast Details for Oakland, OR

Recent Locations: Flint, MI Dallas, TX Oakland, OR

Overnight: Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 43. Calm wind.

Monday: Areas of fog before 8am. Otherwise, mostly sunny, with a high near 66. Calm wind becoming north northwest around 6 mph in the afternoon.

Monday Night: Patchy fog after 2am. Otherwise, increasing clouds, with a low around 44. North northwest wind around 6 mph becoming calm in the evening.

Tuesday: Areas of fog before 9am. Otherwise, mostly cloudy, with a high near 67. Light and variable wind.

Tuesday Night: Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 47. North northwest wind around 6 mph becoming calm in the evening.

Wednesday: Areas of fog before 8am. Otherwise, mostly sunny, with a high near 74.

Wednesday Night: Clear, with a low around 44.

Thursday: Sunny, with a high near 81.

Thursday Night: A slight chance of rain after 11pm. Mostly clear, with a low around 45.

Friday: Rain likely, mainly after 11am. Partly sunny, with a high near 67.

Friday Night: Rain. Mostly cloudy, with a low around 42.

Saturday: Rain likely. Mostly cloudy, with a high near 58.

Saturday Night: A chance of rain. Partly cloudy, with a low around 38.

Sunday: A chance of rain. Snow level 3400 feet rising to 4400 feet in the afternoon. Mostly sunny, with a high near 61.

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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 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

Weather Topic: What is Sleet?

Home - Education - Precipitation - Sleet

Sleet Next Topic: Snow

Sleet is a form of precipitation in which small ice pellets are the primary components. These ice pellets are smaller and more translucent than hailstones, and harder than graupel. Sleet is caused by specific atmospheric conditions and therefore typically doesn't last for extended periods of time.

The condition which leads to sleet formation requires a warmer body of air to be wedged in between two sub-freezing bodies of air. When snow falls through a warmer layer of air it melts, and as it falls through the next sub-freezing body of air it freezes again, forming ice pellets known as sleet. In some cases, water droplets don't have time to freeze before reaching the surface and the result is freezing rain.

Next Topic: Snow