Johnstown, WY: Current UV Index and Hourly Forecast

• USA →
• Wyoming →
• Fremont County →
• Johnstown

On this page, you can find the current UV Index and hourly 5 day UV Index forecast for Johnstown, Fremont County, Wyoming (WY). 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 6:05 PM MST on Tuesday, November 12, 2024, the UV index in Johnstown, WY 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 13, 2024), the UV Index will rise to 0.5 between 9:00 AM - 10:00 AM, still considered low. The UV Index will stay low all day, peaking between 12:00 PM and 1:00 PM with a reading of 2.2.

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 2 at 1:00 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 Johnstown, WY

Current UV Index in Nearby Cities

• Ethete, WY - 0
• Pavillion, WY - 0
• Fort Washakie, WY - 0
• Boulder Flats, WY - 0
• Arapahoe, WY - 0
• Riverton, WY - 0
• Hudson, WY - 0
• Lander, WY - 0
• Shoshoni, WY - 0
• Crowheart, WY - 0
• Atlantic City, WY - 0
• Thermopolis, WY - 0
• East Thermopolis, WY - 0
• Owl Creek, WY - 0
• Lucerne, WY - 0
• Kirby, WY - 0
• Dubois, WY - 0
• Boulder, WY - 0
• Pinedale, WY - 0
• Jeffrey City, WY - 0