As of 11:54 AM CDT on August 11, 2025, all 4 cities in Foster County, ND in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Glenfield, ND with a reading of 3.8.
Over the next 24 hours, the highest UV Index reading in Foster County, ND is expected to be 5.9 in Grace City between 1:00 PM - 2:00 PM CDT today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |