Forecast Details for Riverside, CA

Recent Locations: Riverside, CA  
Current Alerts for Riverside, CA: Flood Watch Winter Storm Watch
Tonight: Partly cloudy, with a low around 46. West wind 10 to 15 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.
Friday: Partly sunny, with a high near 63. Southeast wind 5 to 15 mph becoming west in the afternoon. Winds could gust as high as 20 mph.
Friday Night: A chance of rain after 11pm. Mostly cloudy, with a low around 48. Southwest wind 5 to 10 mph becoming southeast after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday: Rain. The rain could be heavy at times. High near 55. South wind 10 to 15 mph becoming west in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Saturday Night: Showers likely. Mostly cloudy, with a low around 47. Southeast wind around 10 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday: A chance of showers, then showers likely and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 59. Chance of precipitation is 60%.
Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 45. Chance of precipitation is 40%.
Monday: A slight chance of showers after 11am. Mostly sunny, with a high near 65.
Monday Night: Mostly clear, with a low around 46.
Tuesday: Sunny, with a high near 74.
Tuesday Night: Mostly clear, with a low around 51.
Wednesday: Sunny, with a high near 79.
Wednesday Night: Mostly clear, with a low around 52.
Thursday: Mostly sunny, with a high near 73.

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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).

Current U.S. National Radar

National Weather Forecast--Current

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Today's National Weather Map

National Weather Forecast for Tomorrow

Tomorrow National Weather Forecast and Tomorrow National Weather Map are show below.

Tomorrows National Weather Map

North America Water Vapor (Moisture)

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North American Water Vapor Map

Weather Topic: What are Contrails?

Home - Education - Cloud Types - Contrails

Contrails Next Topic: Cumulonimbus Clouds

A contrail is an artificial cloud, created by the passing of an aircraft.

Contrails form because water vapor in the exhaust of aircraft engines is suspended in the air under certain temperatures and humidity conditions. These contrails are called exhaust contrails.

Another type of contrail can form due to a temporary reduction in air pressure moving over the plane's surface, causing condensation. These are called aerodynamic contrails.

When you can see your breath on a cold day, it is also because of condensation. The reason contrails last longer than the condensation from your breath is because the water in contrails freezes into ice particles.

Next Topic: Cumulonimbus Clouds

Weather Topic: What are Cumulus Clouds?

Home - Education - Cloud Types - Cumulus Clouds

Cumulus Clouds Next Topic: Drizzle

Cumulus clouds are fluffy and textured with rounded tops, and may have flat bottoms. The border of a cumulus cloud is clearly defined, and can have the appearance of cotton or cauliflower.

Cumulus clouds form at low altitudes (rarely above 2 km) but can grow very tall, becoming cumulus congestus and possibly the even taller cumulonimbus clouds. When cumulus clouds become taller, they have a greater chance of producing precipitation.

Next Topic: Drizzle