What to do with weed seeds

My garden space isn't easily accessible, so I'm trying to use as much of the existing resources as I can, without having to haul materials in by hand. The main resource I have right now is tons and tons of weeds that have gone to seed. I don't think I can make a compost pile hot enough to kill off every seed, so what can I do with them? My main objective right now is preparing organic matter for fall planting (in August).

Also, I wish I had animals, but I don't.

Are you able to supply a bit of irrigation to the area the weeds went to seed?

If you were to wait a while to let the rest of the seeds drop, you should be able to force any that would be an issue for fall planting [seeds that don't require cool dormancy] to germinate, start growing and by August turn into feed for your compost pile.

Plus free cover crops and all the benefits keeping living plants growing in the soil provides.