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 |
| Jacksonville - Florida | City | North America | jacksonville.weather-florida.com |
| Jakarta - Indonesia | City | Asia | weatherjakarta.com |
| Jamaica | Islands | North America | weather-jamaica.com |
| Jamaica - Iowa | City | North America | iowa.weather-jamaica.com |
| Jamaica - New York | City | North America | newyork.weather-jamaica.com |
| Jamaica - Vermont | City | North America | vermont.weather-jamaica.com |
| Jamaica - Virginia | City | North America | virginia.weather-jamaica.com |
| Jan Mayen - Svalbard and Jan Mayen Islands | Islands | Europe | janmayen.weathersvalbardandjanmayenislands.com |
| Japan | Country | Asia | weather-japan.com |
| Japan - Missouri | City | North America | missouri.weather-japan.com |
| Java - Indonesia | Islands | Asia | weatherjava.com |
| Java - South Dakota | City | North America | southdakota.weatherjava.com |
| Java - Virginia | City | North America | virginia.weatherjava.com |
| Jayapura - Indonesia | City | Asia | weatherjayapura.com |
| Jersey - Arkansas | City | North America | arkansas.weatherjersey.com |
| Jersey - Georgia | City | North America | georgia.weatherjersey.com |
| Jersey - Illinois | City | North America | illinois.weatherjersey.com |
| Jersey - UK | Islands | Europe | weatherjersey.com |
| Jersey - Virginia | City | North America | virginia.weatherjersey.com |
| Jerusalem - Arkansas | City | North America | arkansas.weatherjerusalem.com |
| Jerusalem - Israel | City | Asia | weatherjerusalem.com |
| Jerusalem - Ohio | City | North America | ohio.weatherjerusalem.com |
| Jerusalem - Rhode Island | City | North America | rhodeisland.weatherjerusalem.com |
| Jerusalem - Vermont | City | North America | vermont.weatherjerusalem.com |
| Johannesburg - California | City | North America | california.weather-johannesburg.com |
| Johannesburg - Michigan | City | North America | michigan.weather-johannesburg.com |
| Johannesburg - South Africa | City | Africa | weather-johannesburg.com |
| Johnston Island - USA | Islands | North America | weatherjohnstonisland.com |
| Jordan | Country | Asia | weatherjordan.com |
| Jordan - Arkansas | City | North America | arkansas.weatherjordan.com |
| Jordan - Indiana | City | North America | indiana.weatherjordan.com |
| Jordan - Minnesota | City | North America | minnesota.weatherjordan.com |
| Jordan - Montana | City | North America | montana.weatherjordan.com |
| Jordan - New York | City | North America | newyork.weatherjordan.com |
| Jordan - South Carolina | City | North America | southcarolina.weatherjordan.com |
| Jordan - West Virginia | City | North America | westvirginia.weatherjordan.com |
| Jordan - Wisconsin | City | North America | wisconsin.weatherjordan.com |
| Juan Fernandez Islands - Chile | Islands | South America | weatherjuanfernandezislands.com |
| Juneau - Alaska | City | North America | weatherjuneau.com |
| Juneau - Pennsylvania | City | North America | pennsylvania.weatherjuneau.com |
| Juneau - Wisconsin | City | North America | wisconsin.weatherjuneau.com |
