Forecast Details for Piedmont, CA

Recent Locations: Dalton, GA Three Lakes, WI Piedmont, CA

Overnight: Mostly cloudy, with a low around 47. Southeast wind around 14 mph, with gusts as high as 22 mph.

Sunday: A 10 percent chance of rain before 7am. Mostly sunny, with a high near 63. Southeast wind 7 to 10 mph becoming south southwest in the afternoon.

Sunday Night: Partly cloudy, with a low around 48. East southeast wind 3 to 5 mph.

Monday: Mostly sunny, with a high near 65. Light and variable wind becoming northwest around 5 mph in the afternoon.

Monday Night: Rain likely, mainly after 4am. Mostly cloudy, with a low around 54. West southwest wind 5 to 7 mph becoming south after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Tuesday: Rain. High near 62. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

Tuesday Night: Rain. Low around 55. Chance of precipitation is 80%.

Wednesday: A chance of rain, mainly before 4pm. Mostly cloudy, with a high near 64.

Wednesday Night: A slight chance of rain before 10pm. Mostly cloudy, with a low around 53.

Thursday: Partly sunny, with a high near 68.

Thursday Night: Mostly cloudy, with a low around 53.

Friday: Partly sunny, with a high near 69.

Friday Night: Partly cloudy, with a low around 53.

Saturday: Partly sunny, with a high near 69.

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

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 is Condensation?

Home - Education - Precipitation - Condensation

Next Topic: Contrails

Condensation is the process which creates clouds, and therefore it is a crucial process in the water cycle. Condensation is the change of matter from a state of gas into a state of liquid, and it happens because water molecules release heat into the atmosphere and become organized into a more closely packed structure, what we might see as water droplets.

Water is always present in the air around us as a vapor, but it's too small for us to see. When water undergoes the process of condensation it becomes organized into visible water droplets. You've probably seen condensation happen before on the surface of a cold drink!

Next Topic: Contrails

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