Here are some useful websites if you’re planning a trip to Østfold. Unfortunately a couple of these do not have any info in English yet. Hopefully that’ll be coming soon… (or is this just wishful thinking on my part?)
www.en.ryg.no (Rygge Airport’s website) (info in English)
www.opplevfredrikstad.com (info on Fredrikstad and Hvaler) (some info in English)
www.halden.kommune.no (info on Halden) (some info in English)
www.ostfold-kollektiv.no (for all your transport needs in Østfold) (Norwegian only)
www.nsb.no (train info) (some info in English)
www.nrk.no/ostfold/ (local news) (Norwegian only)
www.yr.no/place/Norway/Østfold/ (check what the weather’s like where you are) (some info in English)