Forecast Details for Saint Helens, OR

Recent Locations: Norge, VA Cloverdale, IN Saint Helens, OR

This Afternoon: Sunny, with a high near 76. Calm wind.

Tonight: Rain likely between 1am and 5am, then showers after 5am. Low around 59. Calm wind becoming south southeast around 5 mph after midnight. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Sunday: Showers likely, mainly before 2pm. Cloudy through mid morning, then gradual clearing, with a high near 68. South southeast wind 6 to 8 mph becoming west northwest in the afternoon. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

Sunday Night: Mostly clear, with a low around 49. West northwest wind 5 to 7 mph becoming calm in the evening.

Monday: Sunny, with a high near 73. Calm wind becoming north around 5 mph in the afternoon.

Monday Night: Clear, with a low around 55.

Tuesday: Sunny, with a high near 84.

Tuesday Night: Clear, with a low around 56.

Wednesday: A slight chance of showers. Mostly sunny, with a high near 72.

Wednesday Night: A slight chance of showers. Partly cloudy, with a low around 52.

Thursday: Mostly sunny, with a high near 71.

Thursday Night: Mostly clear, with a low around 51.

Friday: Sunny, with a high near 73.

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)

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Weather Topic: What is Drizzle?

Home - Education - Precipitation - Drizzle

Drizzle Next Topic: Evaporation

Drizzle is precipitation in the form of water droplets which are smaller than raindrops.

Drizzle is characterized by fine, gently falling droplets and typically does not impact human habitation in a negative way. The exception to this is freezing drizzle, a condition where drizzle freezes immediately upon reaching earth's surface. Freezing drizzle is still less dangerous than freezing rain, but can potentially result in hazardous road conditions.

Next Topic: Evaporation

Weather Topic: What is Fog?

Home - Education - Cloud Types - Fog

Fog Next Topic: Fractus Clouds

Fog is technically a type of stratus cloud, which lies along the ground and obscures visibility.

It is usually created when humidity in the air condenses into tiny water droplets. Because of this, some places are more prone to foggy weather, such as regions close to a body of water.

Fog is similar to mist; both are the appearance of water droplets suspended in the air, but fog is the term applied to the condition when visibility is less than 1 km.

Next Topic: Fractus Clouds