Forecast Details for Pacifica, CA

Recent Locations: Pacifica, CA

Today: Sunny, with a high near 67. South wind 6 to 11 mph, with gusts as high as 18 mph.

Tonight: A slight chance of drizzle before 11pm. Patchy fog after 3am. Otherwise, partly cloudy, with a low around 53. South southwest wind 7 to 9 mph.

Sunday: Mostly sunny, with a high near 66. South wind 10 to 13 mph.

Sunday Night: A slight chance of drizzle before 2am. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 52. Southwest wind 7 to 10 mph.

Monday: Patchy fog before 9am. Otherwise, partly sunny, with a high near 62. South southwest wind 7 to 11 mph.

Monday Night: A slight chance of drizzle. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 52.

Tuesday: A slight chance of drizzle before 11am. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 62.

Tuesday Night: Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 52.

Wednesday: Patchy fog before 11am. Otherwise, partly sunny, with a high near 61.

Wednesday Night: Mostly cloudy, with a low around 52.

Thursday: Partly sunny, with a high near 60.

Thursday Night: Mostly cloudy, with a low around 52.

Independence Day: Mostly cloudy, with a high near 58.

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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