A - B - C - D - E - F - G - H - I - J - K - L - M - N - O - P - Q - R - S - T - U - V - W - X - Y - Z
| Location | Type | Continent | Website |
| Uganda | Country | Africa | weatheruganda.com |
| Ukraine | Country | Europe | weatherukraine.com |
| Ulan Bator - Mongolia | City | Africa | weatherulanbator.com |
| Unfortunate Islands - Chile | Islands | South America | weatherunfortunateislands.com |
| United Arab Emirates | Country | Asia | weatherunitedarabemirates.com |
| United Kingdom | Country | Europe | weatherunitedkingdom.com |
| United States of America | Country | North America | weatherunitedstates.com |
| Uruguay | Country | South America | weatheruruguay.com |
| US Minor Outlying Islands | Islands | Australia and Oceania | weatherusminoroutlyingislands.com |
| Utah - USA | Area | North America | weather-utah.com |
| Utrecht - Holland | City | Europe | weatherutrecht.com |
| Uzbekistan | Country | Asia | weatheruzbekistan.com |
