Idaho (ID): Current UV Index and Hourly Forecast

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As of 2:58 PM MDT on October 7, 2025, all 237 cities in Idaho in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is St. Charles, ID with a reading of 5.

Over the next 24 hours, the highest UV Index reading in Idaho is expected to be 5.1 in St. Charles between 1:00 PM - 2:00 PM MDT tomorrow.

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Counties in Idaho (ID)

• Ada County
• Adams County
• Bannock County
• Bear Lake County
• Benewah County
• Bingham County
• Blaine County
• Boise County
• Bonner County
• Bonneville County
• Boundary County
• Butte County
• Camas County
• Canyon County
• Caribou County
• Cassia County
• Clark County
• Clearwater County
• Custer County
• Elmore County
• Franklin County
• Fremont County
• Gem County
• Gooding County
• Idaho County
• Jefferson County
• Jerome County
• Kootenai County
• Latah County
• Lemhi County
• Lewis County
• Lincoln County
• Madison County
• Minidoka County
• Nez Perce County
• Oneida County
• Owyhee County
• Payette County
• Power County
• Shoshone County
• Teton County
• Twin Falls County
• Valley County
• Washington County

Current UV Index in Major Cities in Idaho (ID)

• Ammon - 4.5
• Blackfoot - 4.5
• Boise - 4.4
• Buhl - 4.6
• Burley - 4.6
• Caldwell - 4.3
• Chubbuck - 4.5
• Coeur d'Alene - 3.5
• Eagle - 4.3
• Emmett - 4.3
• Fruitland - 4.3
• Garden City - 4.4
• Hailey - 4.6
• Hayden - 3.5
• Idaho Falls - 4.5
• Jerome - 4.5
• Kuna - 4.3
• Lewiston - 3.8
• Meridian - 4.3
• Middleton - 4.3
• Moscow - 3.8
• Mountain Home - 4.4
• Nampa - 4.3
• Payette - 4.3
• Pocatello - 4.7
• Post Falls - 3.5
• Preston - 4.8
• Rathdrum - 3.5
• Rexburg - 4.5
• Rigby - 4.4
• Rupert - 4.6
• Sandpoint - 3.5
• Shelley - 4.4
• Star - 4.3
• Twin Falls - 4.6
• Weiser - 4.2