Forecast Details for Spring Valley, WI

Recent Locations: Powder Springs, GA Edelstein, IL Spring Valley, WI

Current Alerts for Spring Valley, WI: Winter Storm Warning

Today: A 10 percent chance of rain after 5pm. Increasing clouds, with a high near 45. East wind 10 to 15 mph.

Tonight: Rain, snow and sleet, possibly mixed with freezing rain before 3am, then snow, freezing rain, and sleet between 3am and 4am, then freezing rain and sleet after 4am. The sleet could be heavy at times. Low around 29. Breezy, with an east wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New ice accumulation of around a 0.1 of an inch possible. New snow and sleet accumulation of less than a half inch possible.

Thursday: Freezing rain and sleet before 11am, then rain, freezing rain, and sleet between 11am and noon, then rain after noon. High near 35. Breezy, with an east wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New ice accumulation of 0.1 to 0.3 of an inch possible. New sleet accumulation of less than a half inch possible.

Thursday Night: Rain likely, mainly before 8pm. Cloudy, with a low around 29. North northeast wind 5 to 10 mph becoming west northwest after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Friday: Showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 44. North northwest wind 5 to 10 mph becoming east northeast in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday Night: Showers and possibly a thunderstorm. Low around 33. East northeast wind around 10 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Saturday: Rain showers likely before 2pm, then rain and snow showers likely between 2pm and 4pm, then snow showers likely after 4pm. Mostly cloudy, with a high near 39. West northwest wind 10 to 15 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Saturday Night: A 30 percent chance of snow showers before 1am. Mostly cloudy, with a low around 26. Blustery, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.

Sunday: Mostly sunny, with a high near 45. Northwest wind around 15 mph.

Sunday Night: Partly cloudy, with a low around 28. West northwest wind 5 to 10 mph becoming southwest after midnight.

Monday: A chance of rain and snow showers. Mostly cloudy, with a high near 44. West wind 5 to 10 mph becoming north in the afternoon. Chance of precipitation is 40%.

Monday Night: Partly cloudy, with a low around 24. North wind 5 to 10 mph.

Tuesday: Mostly sunny, with a high near 45. North northeast wind 5 to 10 mph becoming south southeast in the afternoon.

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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 are Cirrostratus Clouds?

Home - Education - Cloud Types - Cirrostratus Clouds

Next Topic: Cirrus Clouds

Cirrostratus clouds are high, thin clouds that form above 20,000 feet and are made mostly of ice crystals. They sometimes look like giant feathers, horse tails, or curls of hair in the sky. These clouds are pushed by the jet stream and can move at high speeds reaching 100 mph.

What do they indicate?
They indicate that a precipitation is likely within 24 hours.

Next Topic: Cirrus Clouds

Weather Topic: What is Condensation?

Home - Education - Precipitation - Condensation

Next Topic: Contrails

Condensation is the process which creates clouds, and therefore it is a crucial process in the water cycle. Condensation is the change of matter from a state of gas into a state of liquid, and it happens because water molecules release heat into the atmosphere and become organized into a more closely packed structure, what we might see as water droplets.

Water is always present in the air around us as a vapor, but it's too small for us to see. When water undergoes the process of condensation it becomes organized into visible water droplets. You've probably seen condensation happen before on the surface of a cold drink!

Next Topic: Contrails