BBT and heat wave!!

Katie • 27 years old, married
Hi everyone. Just a thought- is it going to be pointless monitoring my bbt this time if we are having a heat wave here in the UK?! This is cycke 2 and will be my first full bbt month as I only got a thermometer half way thru last month. Iv never monitored my first half of cycke before but it's a lot more changeable than my second half was last month! 
​Damn heat wave!!