Forecast Details for Potter Valley, CA

Recent Locations: Fulda, IN Holtville, CA Potter Valley, CA

Overnight: A 50 percent chance of showers. Patchy fog after 5am. Otherwise, cloudy, with a low around 39. Light west southwest wind.

Wednesday: Showers. Patchy fog before 8am. High near 57. South southwest wind 3 to 8 mph. Winds could gust as high as 18 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Wednesday Night: Showers, mainly before 8pm. Low around 35. West northwest wind 5 to 9 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

Thursday: Partly sunny, then gradually becoming sunny, with a high near 63. Calm wind becoming west northwest 5 to 9 mph in the afternoon.

Thursday Night: Widespread frost, mainly after 2am. Otherwise, clear, with a low around 31. West northwest wind 5 to 8 mph becoming calm in the evening.

Friday: Widespread frost before 11am. Otherwise, sunny, with a high near 79. Calm wind.

Friday Night: Mostly clear, with a low around 38.

Saturday: Sunny, with a high near 82.

Saturday Night: Mostly clear, with a low around 41.

Sunday: Sunny, with a high near 83.

Sunday Night: Partly cloudy, with a low around 43.

Monday: Sunny, with a high near 79.

Monday Night: Patchy fog. Otherwise, mostly clear, with a low around 41.

Tuesday: A slight chance of rain. Patchy fog. Otherwise, mostly sunny, with a high near 73.

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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