This website uses cookies. Read about how we use cookies. OK



North America


Cheyenne Cheyenne Jackson Hole Jackson Hole Sheridan Sheridan Casper Casper Gillette Gillette Torrington Torrington Laramie Laramie Rock Springs Rock Springs Evanston Evanston Big Piney Big Piney Cody Cody Riverton Riverton Rawlins Rawlins Worland Worland Custer Custer uv index Wyoming North America Forecast maps
Last updated: Tu, 26 Oct, 08:06 BST

The strength of the sun's ultraviolet (UV) radiation is expressed as a Solar UV Index or Sun Index.The UV Index does not exceed 8 in the UK (8 is rare; 7 may occur on exceptional days, mostly in the two weeks around the summer solstice). Indices of 9 and 10 are common in the Mediterranean area. The Sun Index forecast refers to the daily maximum.