Forecast Details for Greenwich, CT

Recent Locations: Munith, MI Polaris, MT Greenwich, CT

This Afternoon: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 74. Northwest wind around 9 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight: Showers, mainly before 5am. Patchy fog after 2am. Low around 43. North wind 7 to 13 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Thursday: A 40 percent chance of rain, mainly before 2pm. Patchy fog before 2pm. Otherwise, cloudy, with a high near 46. East wind around 14 mph.

Thursday Night: A chance of drizzle or light rain. Areas of fog after 8pm. Otherwise, cloudy, with a low around 42. East wind 7 to 10 mph. Chance of precipitation is 30%.

Friday: A slight chance of drizzle or light rain before 11am. Areas of fog before 11am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 64. Light and variable wind becoming south 5 to 8 mph in the morning. Chance of precipitation is 20%.

Friday Night: Mostly cloudy, with a low around 55.

Saturday: A 30 percent chance of showers after 2pm. Partly sunny, with a high near 71.

Saturday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 51.

Sunday: Showers likely. Mostly cloudy, with a high near 65. Chance of precipitation is 70%.

Sunday Night: A 50 percent chance of showers before 2am. Mostly cloudy, with a low around 41.

Monday: Mostly sunny, with a high near 54.

Monday Night: Mostly clear, with a low around 37.

Tuesday: Mostly sunny, with a high near 52.

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Current U.S. National Radar--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 are Fractus Clouds?

Home - Education - Cloud Types - Fractus Clouds

Fractus Clouds Next Topic: Freezing Rain

A fractus cloud (scud) is a fragmented, tattered cloud which has likely been sheared off of another cloud. They are accessory clouds, meaning they develop from parent clouds, and are named in a way which describes the original cloud which contained them.

Fractus clouds which have originated from cumulus clouds are referred to as cumulus fractus, while fractus clouds which have originated from stratus clouds are referred to as stratus fractus. Under certain conditions a fractus cloud might merge with another cloud, or develop into a cumulus cloud, but usually a fractus cloud seen by itself will dissipate rapidly.

They are often observed on the leading and trailing edges of storm clouds, and are a display of wind activity.

Next Topic: Freezing Rain

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