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| Location | Type | Country | Continent | Website |
| Utah | Area | United States of America | North America | weather-utah.com |
| Uganda | Country | Uganda | Africa | weatheruganda.com |
| Makassar | City | Indonesia | Asia | weatherujungpandang.com |
| Ukraine | Country | Ukraine | Europe | weatherukraine.com |
| Ulan Bator | City | Mongolia | Africa | weatherulanbator.com |
| Unfortunate Islands | Islands | Chile | South America | weatherunfortunateislands.com |
| United Arab Emirates | Country | United Arab Emirates | Asia | weatherunitedarabemirates.com |
| United Kingdom | Country | United Kingdom | Europe | weatherunitedkingdom.com |
| United States of America | Country | United States of America | North America | weatherunitedstates.com |
| Uruguay | Country | Uruguay | South America | weatheruruguay.com |
| US Minor Outlying Islands | Islands | United States of America | Australia and Oceania | weatherusminoroutlyingislands.com |
| Utrecht | City | Netherlands | Europe | weatherutrecht.com |
| Uzbekistan | Country | Uzbekistan | Asia | weatheruzbekistan.com |

























