UV Index Today in Missouri (MO)

Tuesday, April 7, 2026 - 3:45 AM CDT (GMT-5)

The average maximum UV Index today across 1,438 locations in Missouri (MO), is 5.7. The highest projected maximum is 7.4 in Joplin at 1:00 PM CDT, while the lowest projected maximum is 2 in Jefferson at 12:00 PM CDT.

Tomorrow, the average maximum UV Index across those same locations is expected to be 6.3. The highest projected maximum is 6.9 in Branson at 1:00 PM CDT, and the lowest projected maximum is 5.2 in Clay at 1:00 PM CDT.

Data Source: National Oceanic and Atmospheric Administration (NOAA)

115 Counties in Missouri (MO)

Average Maximum UV Index Today
  • Clay County - 5.6
  • Greene County - 7
  • Jackson County - 5.9
  • St. Charles County - 4.9
  • St. Louis County - 4.7
  • St. Louis city - 4.6
Data Source: National Oceanic and Atmospheric Administration (NOAA)

517 Places in Missouri (MO)

Maximum UV Index Today
  • Kansas City - 6.1
  • St. Louis - 4.6
Data Source: National Oceanic and Atmospheric Administration (NOAA)