wi fi disconnects sometimes is it to do with the weather?

You may be getting interference from neighbouring wireless signals.

1)Change the broadcast channel on the router to channel to a less congested one than the current. You can download netstumbler or inssider (google them) and they will display the broadcast channels of any neighbouring wifi networks

2)Turn off any baby alarms cordless phones wireless doorbells as these use the same 2.4Ghz frequency

3)Update the firmware of the router and drivers for your PC/laptop

HTH

David

It would be more or less because of radio interference. You can try to change router's channel to 1 0r 11 for best WiFi performance. 1 or 11 are the fastest channels and will get less interference,you can see how to change channel here,http://www.mywifirouter.me/blog/how-to-change-the-...

I dont have any router channel its just a simple bt router on its own. Its actually a hub 5 with a router already built in.