Key Fob does not work and alarm goes off when raining

NUMBER 2,,,,,GO DIRECTLY TO YOUR HONDA DEALER!!

If you lock the car from outside with the key does it happen? If still goes off recomend replace alarm, if not alarm not reading doors locked from auto door locking system

Getting into a car that has the security system by unlocking the door with the key will set the alarm off. Usually you can relock and unlock the door with the key and the alarm will be turned off. There are several things that can set off an alarm depending on the sensors, so do you have a remote key FOB and if so does it work. I am including a link to Honda Tech article that may help you out:
http://honda-tech.com/honda-accord-1990-2002-2/how-disable-factory-security-system-1638886/

there are sensors in each lock cylinder, trunk, and hood latch. Is it an ex? try locking the car with the remote, then use the key to unlock each door, if the alarm goes off, that's the bad switch. look in your fuse panels and see, I'm pretty sure if you pull the fuse to disable the alarm, you will lose your power locks

Programming
When
Key added or replaced. System malfunction.
How
Obtain all keys. A maximum of 3 keys can be programmed. Close all doors and boot/tailgate. Switch ignition ON. Repeat procedure below 3 times: Within 4 seconds: Press key lock or unlock button. Within 4 seconds: Switch ignition OFF. Within 4 seconds: Switch ignition ON. Within 4 seconds: Press key lock or unlock button. System should now lock or unlock vehicle. Within 4 seconds: Press key lock or unlock button. Within 10 seconds: Press lock or unlock button of first key. System should now lock or unlock vehicle. Press lock or unlock button of second key. System should now lock or unlock vehicle. Press lock or unlock button of third key. System should now lock or unlock vehicle. Switch ignition OFF. Remove key. Check operation of all programmed keys.
NOTE: If less than 3 keys are to be programmed, remove ignition key after programming last key.

try pulling your negative terminal lose from the battery for a few minutes and allow the system to zero out then try it if tht don't work then visit your local honda dealership

you need a drivers side door master switch and after replacing that you'll need to reproggram your key fob/remote

hi seems like water is getting inside the drivers door and getting on the alarm switch inside the door or it could just be afaulty alarm switch its the micro switch that connects to the door lock yatse210456

Have you tried putting your Valet (original keys) into the ignition and turning it to the II position?