"Forever and for Always" was nominated for two Grammy Awards in 2004, Best Country Song and Best Female Country Vocal Performance, however it lost in both categories. The song was also named Song of the Year at both the 2004 BMI Country Songwriter Awards and 2004 European BMI Awards.
The music video for "Forever and for Always" was shot at Bethells Beach in New Zealand in March of 2003. It was directed by Paul Boyd, who shot her "When You Kiss Me" video around the same time also in New Zealand. It debuted on CMT on April 26 2003. The video shows two children at the beach together, then shows them as teens, and eventually seniors, visualizing the theme of the song of staying together forever. The video was released with both the 'red' and 'green' versions, with each also having an 'all performance' video of Shania at the beach alone. The video released a 'blue' version internationally as well. The video won the Female Video of the Year Award at the 2004 CMT Flameworthy Awards, and was nominated for Video of the Year at the 2003 Canadian Country Music Awards, but lost to "I'm Gonna Getcha Good!". The video is available on select singles and the DVD-Audio version of Up!.
At adult contemporary radio, "Forever and for Always" debuted at number 30 the week of May 10 2003. The single spent 77 weeks on the chart and slowly climbed to a peak position of number one on November 15 2003, where it remained for six non-consecutive weeks. "Forever and for Always" became Twain's third number one, sixth top ten single and seventh consecutive top twenty single.
Twain's fourth most successful single on the Billboard Hot 100 is "Forever and for Always". It debuted on May 24 2003, at number 75. It spent 23 weeks on the chart and peaked at number 20 on September 6 2003, where it remained for one week. The single reached number 17 on the airplay chart. "Forever and for Always" became Twain's fourth top twenty single, and ninth top forty single.
"Forever and for Always" proved to be successful internationally, becoming Twain's fifth biggest single in the UK. It debuted on June 14 2003, at its peak at number six. This made it her seventh consecutive, eighth overall, top ten single. It remained on the entire chart for 10 weeks. In all, "Forever and for Always" hit the top ten in six countries: Austria, Canada, Germany, Ireland, Romania, and the UK.
| Chart | Peak position |
|---|---|
| Australian ARIA Charts | 45 |
| Austrian Singles Chart | 6 |
| Canadian Singles Chart | 5 |
| Dutch Singles Chart | 44 |
| Eurochart Hot 100 | 14 |
| German Singles Chart | 9 |
| Irish Singles Chart | 6 |
| New Zealand RIANZ Singles Chart | 17 |
| Polish Airplay Chart | 27 |
| Romanian Singles Chart | 8 |
| Swiss Singles Chart | 26 |
| UK Singles Chart | 6 |
| U.S. Billboard Hot Country Singles & Tracks | 4 |
| U.S. Billboard Adult Contemporary | 1 |
| U.S. Billboard Hot 100 | 20 |
| U.S. Billboard Adult Top 40 | 30 |