Riley, IL: Current UV Index and Hourly Forecast

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On this page, you can find the current UV Index and hourly 5 day UV Index forecast for Riley, McHenry County, Illinois (IL). The Ultraviolet Index forecast, which measures the radiation from the sun that reaches the Earth's surface is updated daily.

UV Index Data sourced from the NOAA.

As of 10:21 PM CST on Monday, November 4, 2024, the UV index in Riley, IL is at a low level of 0. At this time of the night, the sun has already set and there is no exposure to UV radiation. The UV Index will remain at 0 through the early morning hours until around 9:00 AM tomorrow.

As the day progresses tomorrow (November 5, 2024), the UV Index will rise to 0.1 between 9:00 AM - 10:00 AM, still considered low. The UV Index will stay low all day, peaking between 11:00 AM and 12:00 PM with a reading of 1.1.

After reaching its peak for the day, the UV Index will gradually decline through the afternoon and evening. The UV Index will return to low levels of 1.1 at 12:00 PM. As the day transitions into the night, the UV Index will drop back down to 0 at 5:00 PM.

Summary of Hourly UV Index Forecast for Today and Tomorrow in Riley, IL

Current UV Index in Nearby Cities

• Marengo, IL - 0
• Coral, IL - 0
• Union, IL - 0
• Harmony, IL - 0
• Garden Prairie, IL - 0
• Genoa, IL - 0
• Franklinville, IL - 0
• Hampshire, IL - 0
• Kingston, IL - 0
• Huntley, IL - 0
• Burlington, IL - 0
• Lakewood, IL - 0
• Pingree Grove, IL - 0
• Woodstock, IL - 0
• Belvidere, IL - 0
• Hartland, IL - 0
• Kirkland, IL - 0
• Sycamore, IL - 0
• Gilberts, IL - 0
• Lake in the Hills, IL - 0