Forecast Details for Princeton, NJ

Your Recent Locations:  Princeton, NJ  
Today: Showers and thunderstorms likely, mainly before 1pm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a high near 86. Light southwest wind increasing to 6 to 11 mph in the morning. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight: A chance of showers and thunderstorms, mainly after 11pm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 73. Southwest wind 8 to 10 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday: Showers and possibly a thunderstorm before noon, then a chance of showers. Some of the storms could produce heavy rainfall. High near 85. West wind around 7 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Saturday Night: Mostly clear, with a low around 64. Northwest wind around 6 mph.
Sunday: Sunny, with a high near 82. Light northwest wind becoming west 5 to 9 mph in the morning.
Sunday Night: Mostly clear, with a low around 60.
Monday: Mostly sunny, with a high near 79.
Monday Night: Partly cloudy, with a low around 60.
Tuesday: A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 77. Chance of precipitation is 30%.
Tuesday Night: Partly cloudy, with a low around 58.
Wednesday: Mostly sunny, with a high near 80.
Wednesday Night: Mostly clear, with a low around 61.
Thursday: Mostly sunny, with a high near 83.

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Weather Topic: What is Graupel?

Home - Education - Precipitation - Graupel

graupel Next Topic: Hail

Graupel is a form of precipitation that is created by atmospheric conditions which cause supercooled water droplets to contact snow crystals and freeze to their surface.

Sometimes known as soft hail or snow pellets, graupel is delicate and easily destroyed by touch. Whereas hail usually falls during severe weather, graupel doesn't require such conditions to form, and can form in mild precipitation similar to situations which produce snowfall.

Next Topic: Hail

Weather Topic: What is Precipitation?

Home - Education - Precipitation - 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