Forecast Details for Grants Pass, OR

Recent Locations: Grants Pass, OR  
Tonight: Mostly clear, with a low around 39. West wind 5 to 7 mph becoming calm in the evening.
Friday: A 30 percent chance of rain, mainly after 2pm. Increasing clouds, with a high near 66. Light and variable wind becoming southwest 5 to 7 mph in the afternoon.
Friday Night: Rain. Low around 40. West southwest wind 6 to 8 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Saturday: Rain before 11am, then showers likely and possibly a thunderstorm after 11am. Snow level 3600 feet lowering to 2700 feet. High near 51. West northwest wind 5 to 7 mph becoming calm. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night: Showers likely and possibly a thunderstorm before 11pm, then a slight chance of rain after 11pm. Snow level 3300 feet lowering to 2200 feet after midnight . Mostly cloudy, with a low around 36. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday: A 30 percent chance of rain, mainly after 11am. Snow level 2000 feet rising to 3600 feet in the afternoon. Partly sunny, with a high near 55.
Sunday Night: A 20 percent chance of rain before 11pm. Snow level 4200 feet lowering to 3500 feet after midnight . Mostly cloudy, with a low around 38.
Monday: A chance of rain before 11am, then a chance of showers and thunderstorms after 11am. Snow level 3400 feet rising to 5000 feet in the afternoon. Mostly cloudy, with a high near 56.
Monday Night: A slight chance of rain before 11pm. Snow level 4800 feet lowering to 3400 feet after midnight . Mostly cloudy, with a low around 38.
Tuesday: A slight chance of rain before 11am. Snow level 3200 feet rising to 4300 feet in the afternoon. Mostly sunny, with a high near 62.
Tuesday Night: Partly cloudy, with a low around 38.
Wednesday: Mostly sunny, with a high near 68.
Wednesday Night: Mostly clear, with a low around 40.
Thursday: Sunny, with a high near 74.

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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.

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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