As of 3:44 PM CDT on March 22, 2026, all 8 cities in Grundy County, MO in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Brimson, MO with a reading of 2.7.
Over the next 24 hours, the highest UV Index reading in Grundy County, MO is expected to be 4.6 in Spickard between 1:00 PM - 2:00 PM CDT tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |