Forecast Details for Grand Rapids, MI

Recent Locations: Patton, CA Sanders, AZ Grand Rapids, MI

Current Alerts for Grand Rapids, MI: Flood Watch

Overnight: Showers and possibly a thunderstorm, mainly before 3am, then a chance of showers and thunderstorms after 3am. Some of the storms could be severe and produce heavy rainfall. Patchy fog after 3am. Low around 61. Southwest wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Wednesday: Showers and possibly a thunderstorm. Patchy fog before 9am. High near 72. Southwest wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday Night: Showers and thunderstorms before 2am, then showers likely and possibly a thunderstorm between 2am and 5am, then a chance of showers and thunderstorms after 5am. Low around 60. West southwest wind around 7 mph becoming south after midnight. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Thursday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 8am. Mostly cloudy, with a high near 69. South wind 6 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday Night: A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Mostly cloudy, with a low around 49. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 20%.

Friday: Partly sunny, with a high near 75.

Friday Night: A chance of showers, then showers and possibly a thunderstorm after 2am. Low around 55. Chance of precipitation is 80%.

Saturday: Showers and possibly a thunderstorm before 2pm, then a chance of showers. Mostly cloudy, with a high near 66.

Saturday Night: A chance of showers before 2am. Mostly cloudy, with a low around 35.

Sunday: Partly sunny, with a high near 45.

Sunday Night: Partly cloudy, with a low around 28.

Monday: Sunny, with a high near 54.

Monday Night: Partly cloudy, with a low around 40.

Tuesday: Mostly sunny, with a high near 66.

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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

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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 Cumulonimbus Clouds?

Home - Education - Cloud Types - Cumulonimbus Clouds

Cumulonimbus Clouds Next Topic: Cumulus Clouds

The final form taken by a growing cumulus cloud is the cumulonimbus cloud, which is very tall and dense. The tower of a cumulonimbus cloud can soar 23 km into the atmosphere, although most commonly they stop growing at an altitude of 6 km.

Even small cumulonimbus clouds appear very large in comparison to other cloud types. They can signal the approach of stormy weather, such as thunderstorms or blizzards.

Next Topic: Cumulus Clouds

Weather Topic: What is Drizzle?

Home - Education - Precipitation - Drizzle

Drizzle Next Topic: Evaporation

Drizzle is precipitation in the form of water droplets which are smaller than raindrops.

Drizzle is characterized by fine, gently falling droplets and typically does not impact human habitation in a negative way. The exception to this is freezing drizzle, a condition where drizzle freezes immediately upon reaching earth's surface. Freezing drizzle is still less dangerous than freezing rain, but can potentially result in hazardous road conditions.

Next Topic: Evaporation