Well... ho ho... I looked on the raintoday site, which I liked a lot, and calculated that I could get to my elderly parents' house and back before the next downpour... Well I would have if they hadn't rambled on so much, and when I went to strap my basket on my bike I looked southwest and saw BIBLICAL ROILING CLOUDS in shades of pewter, slate and hellhound banking up in the direction of my village. FIngers of cloud reached threateningly down to the cowering earth and leaves fled chaotically in random gusts of wind. I leapt on my trusty steed, hood up and squashed under my helmet, hoping I wouldn't meet anyone I knew, and battled forth.
I got to within a mile of home when I hit the downpour, I just kept my head down and pedalled as fast as I could into the wind (I was of course proceeding in a southwesterly direction) and managed to get home before serious damage was done to the contents of my basket ("The Daily Ukulele: 365 Songs For Better Living"). Stepped across the threshold and howled like a lonely wolf.
It was terrific!
Waterproof now dripping steadily onto kitchen floor.