Saab A/C

I have an 03 Saab 9-5 Linear Turbo. Now that it is 95+ degrees here every day my A/C is acting up. It still sends out cooled air, but with virtually no force, it is as if the fan is stuck in low. You can manually slow it down, but you cannot ioncrease the air force. It was fine until a week ago. I recently had a new battery installed, so I re-calibrated the system, but that did not change anything. I looked at several fuses, all of which looked fine. Interestingly, when I put one of the fuses back in after examining it, the air came out with more force than before, but still not nearly as much as it normally does. I was hoping to avoid a trip to the dealer if possible, and wondered what the possibilities are as to what this could be.