Forecast Details for Boulder, CO

Recent Locations: Boulder, CO  
Current Alerts for Boulder, CO: Frost Advisory
Overnight: Mostly clear, with a low around 35. Breezy, with a west southwest wind 13 to 21 mph, with gusts as high as 30 mph.
Wednesday: A 10 percent chance of showers and thunderstorms after 4pm. Sunny, with a high near 59. Windy, with a west northwest wind 21 to 26 mph decreasing to 14 to 19 mph in the afternoon. Winds could gust as high as 38 mph.
Wednesday Night: A chance of rain showers before 4am, then a chance of rain and snow showers. Some thunder is also possible. Mostly cloudy, with a low around 36. West northwest wind 5 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Thursday: A chance of rain and snow showers before 8am, then rain showers likely. Some thunder is also possible. Mostly cloudy, with a high near 53. Light and variable wind becoming northeast 5 to 10 mph in the morning. Winds could gust as high as 15 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Thursday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 38. Northeast wind 5 to 9 mph becoming calm in the evening. Chance of precipitation is 30%.
Friday: A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 63.
Friday Night: Partly cloudy, with a low around 42.
Saturday: A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 70.
Saturday Night: A slight chance of showers before midnight. Partly cloudy, with a low around 47.
Sunday: A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 73.
Sunday Night: A chance of showers. Mostly cloudy, with a low around 48.
Monday: A chance of showers and thunderstorms. Partly sunny, with a high near 73.
Monday Night: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 49.
Tuesday: A chance of showers and thunderstorms. Partly sunny, with a high near 73.

Want more detail? Get the Complete 7 Day and Night Detailed Forecast!

Want to Receive our Free Daily Forecast Emails in your inbox by 5 a.m.?
There are no ads! Learn More
We respect your privacy and will not share or sell your email with anyone.

Current U.S. National Radar--Current

The Current National Weather Radar is shown below with a UTC Time (subtract 5 hours from UTC to get Eastern Time).

Current U.S. National Radar

National Weather Forecast--Current

The Current National Weather Forecast and National Weather Map are shown below.

Today's National Weather Map

National Weather Forecast for Tomorrow

Tomorrow National Weather Forecast and Tomorrow National Weather Map are show below.

Tomorrows National Weather Map

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.

North American Water Vapor Map

Weather Topic: What is Snow?

Home - Education - Precipitation - Snow

Snow Next Topic: Stratocumulus Clouds

Snow is precipitation taking the form of ice crystals. Each ice crystal, or snowflake, has unique characteristics, but all of them grow in a hexagonal structure. Snowfall can last for sustained periods of time and result in significant buildup of snow on the ground.

On the earth's surface, snow starts out light and powdery, but as it begins to melt it tends to become more granular, producing small bits of ice which have the consistency of sand. After several cycles of melting and freezing, snow can become very dense and ice-like, commonly known as snow pack.

Next Topic: Stratocumulus Clouds

Weather Topic: What are Stratus Clouds?

Home - Education - Cloud Types - Stratus Clouds

Stratus Clouds Next Topic: Wall Clouds

Stratus clouds are similar to altostratus clouds, but form at a lower altitude and are identified by their fog-like appearance, lacking the distinguishing features of most clouds.

Stratus clouds are wider than most clouds, and their base has a smooth, uniform look which is lighter in color than a nimbostratus cloud. The presence of a stratus cloud indicates the possibility of minor precipitation, such as drizzle, but heavier precipitation does not typically arrive in the form of a stratus cloud.

Next Topic: Wall Clouds