Forecast Details for Spring Valley, WI

Recent Locations: Spring Valley, WI

Tonight: Partly cloudy, with a low around 49. Northeast wind 5 to 15 mph.

Thursday: A 30 percent chance of showers, mainly before 10am. Mostly cloudy, then gradually becoming sunny, with a high near 64. Northeast wind around 10 mph.

Thursday Night: Areas of frost after 4am. Otherwise, clear, with a low around 37. North wind 5 to 10 mph becoming light in the evening.

Friday: A 40 percent chance of showers and thunderstorms after 1pm. Increasing clouds, with a high near 67. West southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon.

Friday Night: A chance of thunderstorms before 7pm. Mostly clear, with a low around 44. Northwest wind 10 to 15 mph. Chance of precipitation is 30%.

Saturday: Sunny, with a high near 68. Northwest wind 10 to 15 mph.

Saturday Night: Partly cloudy, with a low around 49. West northwest wind 5 to 10 mph becoming south in the evening.

Sunday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 76. Southwest wind 10 to 15 mph.

Sunday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 50. West wind 10 to 15 mph.

Monday: A 20 percent chance of showers after 1pm. Sunny, with a high near 74. Northwest wind around 10 mph.

Monday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 51. North northeast wind around 10 mph becoming east southeast after midnight.

Tuesday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 73. South southeast wind 10 to 15 mph.

Tuesday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 53. Southeast wind 10 to 15 mph.

Wednesday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 71. East southeast wind 10 to 15 mph becoming west southwest in the afternoon.

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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 Evaporation?

Home - Education - Precipitation - Evaporation

Next Topic: Fog

Evaporation is the process which returns water from the earth back to the atmosphere, and is another crucial process in the water cycle.

Evaporation is the transformation of liquid into gas, and it happens because molecules are excited by the application of energy and turn into vapor. In order for water to evaporate it has to be on the surface of a body of water.

Next Topic: Fog

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