Forecast Details for Costa Mesa, CA

Recent Locations: Costa Mesa, CA

Tonight: Increasing clouds, with a low around 61. Southwest wind 5 to 10 mph becoming south after midnight.

Wednesday: Cloudy, then gradually becoming mostly sunny, with a high near 74. South wind 5 to 10 mph.

Wednesday Night: Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 62. South wind 5 to 10 mph.

Thursday: Patchy fog before 11am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 74. South wind 5 to 10 mph, with gusts as high as 20 mph.

Thursday Night: Increasing clouds, with a low around 61. South wind 5 to 10 mph.

Friday: Partly sunny, with a high near 74.

Friday Night: Mostly cloudy, with a low around 62.

Saturday: Mostly cloudy, with a high near 77.

Saturday Night: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 62.

Sunday: Patchy fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 78.

Sunday Night: Patchy fog. Otherwise, partly cloudy, with a low around 63.

Monday: Patchy fog. Otherwise, mostly sunny, with a high near 78.

Monday Night: Patchy fog. Otherwise, partly cloudy, with a low around 62.

Tuesday: Patchy fog. Otherwise, mostly sunny, with a high near 76.

Want more detail? Get the Complete 7 Day and Night Detailed Forecast!

Current U.S. National Radar--Current

The Current National Weather Radar is shown below with a UTC Time (subtract 5 hours from UTC to get Eastern Time).

National Weather Forecast--Current

The Current National Weather Forecast and National Weather Map are shown below.

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