Forecast Details for Riley, IN

Recent Locations: Macomb, OK Osco, IL Riley, IN

Current Alerts for Riley, IN: Flood Warning Wind Advisory

Today: Scattered showers, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 79. Breezy, with a south wind 21 to 26 mph, with gusts as high as 47 mph. Chance of precipitation is 30%.

Tonight: Showers and thunderstorms, mainly before midnight, then showers likely and possibly a thunderstorm after 2am. Low around 63. Breezy, with a south southwest wind 15 to 21 mph, with gusts as high as 39 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday: Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 78. South southwest wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday Night: Showers likely and possibly a thunderstorm before 8pm, then scattered showers and thunderstorms between 8pm and 2am, then showers and possibly a thunderstorm after 2am. Low around 62. South wind 9 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Saturday: Showers and possibly a thunderstorm before 2pm, then showers likely. High near 69. South wind 13 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

Saturday Night: Showers likely before 8pm. Mostly cloudy, with a low around 39. West northwest wind 10 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Sunday: Mostly sunny, with a high near 54. West northwest wind 10 to 13 mph, with gusts as high as 21 mph.

Sunday Night: Mostly clear, with a low around 36. Northwest wind around 6 mph becoming calm in the evening.

Monday: Sunny, with a high near 60. West northwest wind 5 to 10 mph, with gusts as high as 18 mph.

Monday Night: Mostly clear, with a low around 35. Northwest wind around 6 mph.

Tuesday: Sunny, with a high near 56.

Tuesday Night: Partly cloudy, with a low around 35.

Wednesday: Mostly sunny, with a high near 65.

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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 Nimbostratus Clouds?

Home - Education - Cloud Types - Nimbostratus Clouds

Nimbostratus Clouds Next Topic: Precipitation

A nimbostratus cloud is similar to a stratus cloud in its formless, smooth appearance. However, a nimbostratus cloud is darker than a stratus cloud, because it is thicker.

Unlike a stratus cloud, a nimbostratus cloud typically brings with it the threat of moderate to heavy precipitation. In some cases, the precipitation may evaporate before reaching the ground, a phenomenon known as virga.

Next Topic: Precipitation

Weather Topic: What is Rain?

Home - Education - Precipitation - Rain

Rain Next Topic: Shelf Clouds

Precipitation in the form of water droplets is called rain. Rain generally has a tendency to fall with less intensity over a greater period of time, and when rainfall is more severe it is usually less sustained.

Rain is the most common form of precipitation and happens with greater frequency depending on the season and regional influences. Cities have been shown to have an observable effect on rainfall, due to an effect called the urban heat island. Compared to upwind, monthly rainfall between twenty and forty miles downwind of cities is 30% greater.

Next Topic: Shelf Clouds