Forecast Details for Mercer Island, WA

Recent Locations: Mercer Island, WA

Overnight: Showers likely, mainly after 5am. Mostly cloudy, with a low around 48. Southeast wind around 6 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Monday: Showers before 2pm, then a chance of showers and thunderstorms between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. High near 62. South southeast wind 8 to 13 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Monday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 48. South wind 9 to 11 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tuesday: Showers. High near 60. South wind around 9 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

Tuesday Night: A 50 percent chance of showers, mainly before 11pm. Mostly cloudy, with a low around 48. South southwest wind 5 to 8 mph.

Wednesday: Partly sunny, with a high near 64.

Wednesday Night: A 20 percent chance of showers after 11pm. Mostly cloudy, with a low around 47.

Thursday: Mostly sunny, with a high near 67.

Thursday Night: Mostly cloudy, with a low around 48.

Friday: A slight chance of showers after 11am. Partly sunny, with a high near 66.

Friday Night: A chance of showers. Mostly cloudy, with a low around 49.

Saturday: A slight chance of showers. Partly sunny, with a high near 66.

Saturday Night: A slight chance of showers. Partly cloudy, with a low around 49.

Sunday: A slight chance of showers. Mostly sunny, with a high near 70.

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Current U.S. National Radar--Current

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National Weather Forecast--Current

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National Weather Forecast for Tomorrow

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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