The summer forecast is in, and it's stunning: Everything points to peace and tranquillity for both teams once the Raiders and 49ers open their training camps this week.

This is not what any of us are used to, of course, after years of dual-franchise tension, disappointments, delusions and occasional accusations of coach-on-coach violence.

But here they are, anyway, after spending most of the offseason acting like normal, thoughtful teams.

Yes, I'm still trying to adjust to this. Maybe a few days in a decompression chamber spent listening to old Mike Martz and Javon Walker interviews?

The Raiders head to Napa without JaMarcus Russell and with a great chance to break their string of seven consecutive 11-loss seasons.

The 49ers open in Santa Clara as the NFC West favorites, pure and simple. In fact, the 49ers could stumble and bumble and still win that weak division.

Maybe it won't last long. Maybe the quiet and calm is only masking the deep problems that remain in both franchises.

But for now, the contrast just to last year is breathtaking, and speaks to the potential for prosperity.

  • Last year at this time, the Raiders were still banking on Russell and denying that he was on his way to becoming the biggest No. 1 bust of all time.

    This year, Russell is facing drug charges, but not as a Raiders employee, and the quarterback spot is realistically a non-disaster area.

    That's an instant 40-point blood-pressure drop, for Tom Cable, the locker room and everybody in the franchise except Al Davis, Russell's biggest champion.

    All Jason Campbell has to do is provide leadership and generally act as if he's interested, and the Raiders are 10 miles ahead of where they were last year.

    If Campbell starts throwing strikes deep downfield "... my oh my, what will the Raiders look like if their QB is actually good?

  • Last year at this time, receiver Michael Crabtree was months away from signing his rookie deal with the 49ers. He missed training camp and the first five regular-season games.

    This year, Crabtree will be there from the start, which gives him every opportunity to turn into the No. 1 outside threat the 49ers need.

  • Last year at this time, the Raiders' run defense promised to be a huge weakness for yet another year, but there was no firm reason to believe they could fix it.

    This year, the Raiders have No. 1 pick Rolando McClain to patrol the middle (once he signs), and they've added veteran tacklers Kamerion Wimbley, John Henderson and others to try to halt the run-defense demolition.

  • Last year at this time, 49ers coach Mike Singletary kept saying he wanted to run the ball, which belied the finesse style of most of the team's proven offensive linemen.

    This year, power guard Chilo Rachal has a season of starting experience, and Singletary has two new lineman toys: physical first-round picks Anthony Davis and Mike Iupati.

  • Last year at this time, though we didn't really know it until a few weeks later, Cable was not thrilled to have Randy Hanson on his coaching staff.

    Then something happened during a coaches meeting at the Napa Marriott, and the last few weeks of Raiders camp were filled with public scrutiny over Cable's emotional fitness for the job.

    This year, Hanson is gone, and Cable is starting his second full season as coach, sort of amazing to consider, all by itself.

    I guess there could be some tension with new big-personality offensive coordinator Hue Jackson, but the odds of another hotel-room wrestling match and threatened legal action seem low.

    Now Cable can just coach.

  • Last year at this time, quarterback Alex Smith was a bit of an afterthought — oh, he's still around? — behind incumbent starter Shaun Hill.

    This year, for the first time since 2007, Smith goes into camp as the unquestioned No. 1 QB, and for the first time ever, he goes into a second consecutive season with the same offensive system.

    What does all this positivity mean? It just means that the Raiders have given themselves a solid shot at relevance for the first time since Rich Gannon was their QB.

    And it means the 49ers, for the first time since Steve Young was their QB, have assembled the most talent in their division, and possibly enough to win some playoff games.

    This is huge, dramatic, dizzying stuff. Get me into that decompression chamber, because I'm not used to the peacefulness.

    Contact Tim Kawakami at tkawakami@mercurynews.com.