Forecast Details for Cathlamet, WA

Recent Locations: Sidney, MT Meraux, LA Cathlamet, WA

Today: Mostly cloudy, then gradually becoming sunny, with a high near 80. Northwest wind 3 to 7 mph.

Tonight: Increasing clouds, with a low around 60. Northwest wind 3 to 6 mph.

Friday: Partly sunny, with a high near 78. West northwest wind 3 to 6 mph.

Friday Night: A 30 percent chance of showers, mainly after 11pm. Mostly cloudy, with a low around 60. West wind 5 to 8 mph.

Saturday: A chance of showers, with thunderstorms also possible after 5pm. Cloudy, with a high near 72. West wind 3 to 6 mph. Chance of precipitation is 40%.

Saturday Night: A chance of showers and thunderstorms before 11pm, then a slight chance of showers. Cloudy, with a low around 60. Chance of precipitation is 50%.

Sunday: A 20 percent chance of showers. Mostly cloudy, with a high near 72.

Sunday Night: A chance of showers, mainly after 11pm. Mostly cloudy, with a low around 59.

Monday: A chance of showers, with thunderstorms also possible after 11am. Cloudy, with a high near 68.

Monday Night: Showers likely. Cloudy, with a low around 59.

Tuesday: Showers likely. Cloudy, with a high near 67.

Tuesday Night: Showers likely. Mostly cloudy, with a low around 58.

Wednesday: A chance of showers. Mostly cloudy, with a high near 70.

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 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