I have to say for me the barometric pressure can help me predict/prepare for a flare. But I can begin a flare with heavy sweating like others have mentioned but also by being extremely chilled. I just cannot get my hands and feet warm no matter what, regardless of actual temperature! I say my personal thermostat is just plain messed up!

I have flu=like systems. Getting into bed and wrap up warmly helps me.

Check the barametric pressure. If very low aches. Found a few days before a storm would have flare up. During the storm not so bad but coming out of stormy weather an other flare up.

Wow, I thought my extreme sweating from my head and neck area was the start of menopause, even though I'm only 46. I can exert very little energy in a freezing cold room and break out into a sweat to the point that I look like I just showered. I'm only on Leflonimide and turmeric right now. I don't do well on Methotrexate or Prendisone. So I've been in a lot of pain the last couple of months. Now this explains the sweating. Thanks all for sharing. Makes me feel "normal".

I don't really know how you can tell there is a flare coming all of us are different and I am sure would like to know when a flare is coming like take today for instance I went out for lunch with a friend it was a restaurant in a shopping centre while walking back to my car I started sweating and by the time we got home I had a fully fledged flare I think I need to explain that I have a very high threshold of pain so the last time I was at my Dictor I asked him why do I sweat so much and he said it could be pain so I asked him then I would know I am in pain and he said because it takes you so long to recignize pain your body is looking after itself and starts to sweat