Forecast Details for Jacksonville, FL

Recent Locations: Fruitland, WA Jacksonville, FL

Current Alerts for Jacksonville, FL: Flood Watch

Today: Showers and thunderstorms. High near 89. Light and variable wind becoming northeast 5 to 8 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Tonight: Showers and thunderstorms, mainly before 11pm. Low around 75. Northeast wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Monday: A chance of showers, then showers and thunderstorms after 11am. High near 91. Heat index values as high as 103. Calm wind becoming east 5 to 8 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Monday Night: Showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Low around 76. East wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 80%.

Tuesday: A chance of showers, then showers and thunderstorms after 11am. High near 92. Calm wind becoming east 5 to 7 mph in the morning. Chance of precipitation is 80%.

Tuesday Night: Showers and thunderstorms before 11pm, then a chance of showers. Low around 76. Chance of precipitation is 80%.

Wednesday: Showers and thunderstorms, mainly after 2pm. High near 91. Chance of precipitation is 80%.

Wednesday Night: Showers and thunderstorms, mainly before 8pm. Low around 77. Chance of precipitation is 80%.

Thursday: Showers and thunderstorms, mainly after 2pm. High near 90. Chance of precipitation is 90%.

Thursday Night: Showers and thunderstorms before 2am, then a slight chance of showers. Low around 76. Chance of precipitation is 80%.

Friday: Showers and thunderstorms. High near 90. Chance of precipitation is 90%.

Friday Night: Showers and thunderstorms. Low around 76. Chance of precipitation is 80%.

Saturday: Showers and thunderstorms. High near 90. Chance of precipitation is 80%.

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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

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 is Precipitation?

Home - Education - Precipitation - Precipitation

Next Topic: Rain

Precipitation can refer to many different forms of water that may fall from clouds. Precipitation occurs after a cloud has become saturated to the point where its water particles are more dense than the air below the cloud.

In most cases, precipitation will reach the ground, but it is not uncommon for precipitation to evaporate before it reaches the earth's surface. When precipitation evaporates before it contacts the ground it is called Virga. Graupel, hail, sleet, rain, drizzle, and snow are forms of precipitation, but fog and mist are not considered precipitation because the water vapor which constitutes them isn't dense enough to fall to the ground.

Next Topic: Rain

Weather Topic: What are Shelf Clouds?

Home - Education - Cloud Types - Shelf Clouds

Shelf Clouds Next Topic: Sleet

A shelf cloud is similar to a wall cloud, but forms at the front of a storm cloud, instead of at the rear, where wall clouds form.

A shelf cloud is caused by a series of events set into motion by the advancing storm; first, cool air settles along the ground where precipitation has just fallen. As the cool air is brought in, the warmer air is displaced, and rises above it, because it is less dense. When the warmer air reaches the bottom of the storm cloud, it begins to cool again, and the resulting condensation is a visible shelf cloud.

Next Topic: Sleet