UV Index Today in South Dakota (SD) Tuesday, April 7, 2026 -
3:55 AM CDT (GMT-5)
The average maximum UV Index today across 189
locations in South Dakota (SD) , is 3.6. The highest projected
maximum is 5.9 in Custer at 2:00 PM CDT, while the lowest
projected maximum is 1.7 in Worthing
at 12:00 PM CDT.
Tomorrow, the average maximum UV Index across those same locations is expected to
be 5.3. The highest projected maximum is 5.9 in Pine Ridge at 2:00 PM CDT, and the
lowest projected maximum is 4.2 in Sisseton at 2:00 PM CDT.
66 Counties in South Dakota (SD) Average Maximum UV Index Today
Aurora County - 2.8
Beadle County - 2.9
Bennett County - 5.7
Bon Homme County - 2
Brookings County - 3.8
Brown County - 3.6
Brule County - 3
Buffalo County - 3.1
Butte County - 4.9
Campbell County - 4.3
Charles Mix County - 2.1
Clark County - 3.8
Clay County - 2.3
Codington County - 4.1
Corson County - 4.5
Custer County - 5.9
Davison County - 2.2
Day County - 4.3
Deuel County - 4.4
Dewey County - 4.7
Douglas County - 2.1
Edmunds County - 3.9
Fall River County - 5.7
Faulk County - 3.3
Grant County - 4.7
Gregory County - 2.6
Haakon County - 5.5
Hamlin County - 4
Hand County - 3.2
Hanson County - 2.1
Harding County - 4.5
Hughes County - 4
Hutchinson County - 2
Hyde County - 3.4
Jackson County - 5.5
Jerauld County - 2.8
Jones County - 4.7
Kingsbury County - 3.1
Lake County - 2.5
Lawrence County - 5.3
Lincoln County - 2.6
Lyman County - 3
McCook County - 1.9
McPherson County - 4.4
Marshall County - 4.1
Meade County - 5.4
Mellette County - 4.9
Miner County - 1.9
Minnehaha County - 2.8
Moody County - 3.3
Oglala Lakota County - 5.7
Pennington County - 5.7
Perkins County - 4.8
Potter County - 3.9
Roberts County - 4.5
Sanborn County - 2.3
Spink County - 3
Stanley County - 4.8
Sully County - 3.4
Todd County - 4.8
Tripp County - 3.1
Turner County - 1.8
Union County - 2.8
Walworth County - 4.5
Yankton County - 2.2
Ziebach County - 4.8151 Places in South Dakota (SD) Maximum UV Index Today
Aberdeen - 3.6
Agency Village - 4.4
Alcester - 2
Alexandria - 2.3
Allen - 5.7
Antelope - 4.4
Arlington - 3.2
Armour - 1.9
Ashland Heights - 5.4
Aurora - 4
Avon - 1.9
Baltic - 2.8
Belle Fourche - 4.9
Beresford - 2
Big Stone City - 4.7
Blackhawk - 5.4
Blucksberg Mountain - 5.4
Boulder Canyon - 5.2
Box Elder - 5.6
Brandon - 3.4
Britton - 4.1
Brookings - 4
Bryant - 3.2
Burke - 2.3
Canistota - 1.8
Canton - 2.6
Castlewood - 4.3
Centerville - 1.9
Chamberlain - 3
Clark - 3.8
Clear Lake - 4.4
Colman - 3.3
Colonial Pine Hills - 5.8
Colton - 2.3
Corsica - 2.4
Crooks - 2.8
Custer - 5.9
Dakota Dunes - 3.5
Deadwood - 5.2
Dell Rapids - 2.8
De Smet - 3.2
Dupree - 4.9
Eagle Butte - 4.8
Edgemont - 5.7
Elk Point - 2.2
Elkton - 4.5
Emery - 2
Estelline - 4.4
Eureka - 4.4
Faulkton - 3.3
Flandreau - 3.3
Fort Pierre - 4.8
Fort Thompson - 3.1
Freeman - 2
Garretson - 3.4
Gayville - 2.1
Gettysburg - 3.9
Green Valley - 5.6
Gregory - 2.9
Groton - 3.8
Harrisburg - 2.9
Hartford - 2
Herreid - 4.3
Highmore - 3.4
Hill City - 5.9
Hot Springs - 5.7
Howard - 1.9
Humboldt - 2.3
Huron - 2.6
Ipswich - 4.1
Jefferson - 3.5
Johnson Siding - 5.9
Kyle - 5.6
Lake Andes - 2
Lake Madison - 2.7
Lake Norden - 3.9
Lake Preston - 3
Lead - 5.5
Lemmon - 4.8
Lennox - 1.8
Lower Brule - 3.1
McLaughlin - 4.5
Madison - 2.7
Manderson-White Horse Creek - 5.7
Marion - 1.8
Martin - 5.7
Meadow View Addition - 2.9
Menno - 2
Milbank - 4.6
Miller - 3.2
Mina - 3.8
Mission - 4.4
Mitchell - 2.2
Mobridge - 4.5
Murdo - 4.7
New Underwood - 5.6
North Eagle Butte - 4.8
North Sioux City - 3.5
North Spearfish - 5.2
Oacoma - 3
Oglala - 5.6
Onida - 3.4
Parker - 1.8
Parkston - 2.2
Parmelee - 5.4
Philip - 5.5
Piedmont - 5.4
Pierre - 4
Pine Ridge - 5.9
Plankinton - 2.8
Platte - 2.3
Ramona - 2
Rapid City - 5.8
Rapid Valley - 5.6
Redfield - 3
Rosebud - 4.4
St. Francis - 5.4
Salem - 1.9
Scotland - 2.2
Selby - 4.6
Shindler - 2.9
Sioux Falls - 2.9
Sisseton - 4.6
Spearfish - 5.2
Springfield - 2
Sturgis - 5.2
Summerset - 5.4
Tea - 2.9
Timber Lake - 4.6
Tripp - 2
Tyndall - 2
Valley Springs - 3.4
Vermillion - 2.3
Viborg - 1.8
Volga - 3.2
Wagner - 1.9
Wall - 5.6
Wanblee - 5.5
Warner - 3.4
Watertown - 4.1
Webster - 4
Wessington Springs - 2.8
White River - 4.9
Whitewood - 5.2
Winner - 3.1
Wolsey - 3.2
Wonderland Homes - 5.4
Woonsocket - 2.3
Worthing - 1.7
Wounded Knee - 5.7
Yankton - 2.2