71.7kg recorded for me this morning but this is probably reading a little lower than my realistic weight. I suspect that I'm probably about 72.2 or so. I've had 3 hardish (for me, anyway) runs this week. On Monday I did a 16K which ended up having 250m of climbing on it. Yesterday I did a flat, fast 10K to get my Jantastic timed run in and knocked 4 minutes off my PB. Today I went out for a 12K recovery run, but it still ended up with over 200m of climbing on it. I reckon all this will have brought my weight temporarily down by at least half a kg. I'm going to ease back on the running for the rest of the week. I'd like to get up to 64K (40miles) in a week which would be a first for me and I'm semi-committed for parkrun on Saturday so i think I'll just slot in a couple of slow flat runs of 10 to 12K jogs to get the distance up. I've already managed over 500m of climbing this week (even my flat runs have at least 50m in - it's a given when you live at the top of a hill).
Overall, I'm happy at the weight I'm at. I'm aiming to keep below 73kg now this year, except for holiday and Christmas binges. I just need to keep monitoring to ensure that things don't slide as happened to me before.