Freeze Me, Burn Me

Ok, so Saturday the girls and Peter were outside playing and M comes in after about 15 minutes, strips her socks and shoes off and says "It's too hot outside, I'm staying in." A few minutes later, K comes in does/says the same thing. The temp was about in the mid-70s and sunny (it was pretty hot).
That was Saturday... today is Monday (10 pm)... I JUST PUT THE HEAT ON in the house! I think the high only reached about 50 today. It was nice! Perfectly sunny and windy and cold.