As of 12:40 PM CDT on May 22, 2026, all 12 cities in Marshall County, KS in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Marysville, KS with a reading of 3.8.
Over the next 24 hours, the highest UV Index reading in Marshall County, KS is expected to be 6.7 in Frankfort between 3:00 PM - 4:00 PM CDT today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |